Atlanta, GA · Airport profile
ATL
Hartsfield-Jackson Atlanta International Airport
78.7% of departures from ATL arrived on time across 1,012,247 flights, July 2023 – July 2026. The weakest hour is 8 PM, at 69.8%. Airline-caused delays accounts for the most delay minutes.
ATL right now
Live conditions where a permitted source publishes them, and the historical record where none does.
Aviation weather is not currently a factor.
Minimal operational impact. Conditions are not a notable factor for operations right now.
UpdatedForecast issued 07:32Z.
UpdatedBelow 10,000 ft, so aircraft overflying at cruise are not counted. These are observations, not an operational status: a count is a floor, since receiver coverage varies and a movement between two samples can be missed.
UpdatedAircraft observations from ADSB.lol (opens in a new tab) (Katia Esposito and contributing feeders), under the ODbL 1.0 (opens in a new tab). Derived data.
FlyerIntel shows live values only where a permitted source provides them. Sections without data are left empty rather than estimated.
Airport reliability
Departures from ATL, July 2023 – July 2026.
Better than 52% of major US airports covered by FlyerIntel (64 compared)
Calculated from 1,012,247 flights. How this is calculated
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
How this airport compares to others like it, not just to itself.
The airline matters unusually much at this airport, a wider carrier-to-carrier gap than 93% of 218 comparable airports.
Endeavor Air arrived on time 87.0% of the time, against 63.4% for Frontier Airlines, flying out of the exact same airport.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other airport with the same kind of figure and at least 218 in the comparison.
Why flights are cancelled at ATL
Every cancellation carries a reason code filed by the airline that operated the flight. Departures, July 2023 – July 2026.
Extreme weather accounts for 47.8% of cancelled departures from ATL — about 1 in every 159 scheduled departures. That is 12 points lower than the 59.5% recorded across every airport FlyerIntel covers.
Share of cancellations
Of 13,306 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
6,364 cancellations, 47.8% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
6,180 cancellations, 46.4% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
749 cancellations, 5.6% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
13 cancellations, 0.1% of the total.
13,306 of 1,012,247 scheduled departures from ATL were cancelled. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
By carrier
| Carrier | Cancelled | Rate | Airline | Weather | Air traffic | Security |
|---|---|---|---|---|---|---|
| Delta Air Lines DL | 8,628 | 1.20% | 56% | 41% | 2% | <1% |
| Frontier Airlines F9 | 1,196 | 2.61% | 50% | 50% | 0% | 0% |
| Southwest Airlines WN | 684 | 0.81% | 16% | 69% | 15% | 0% |
Shares are of each carrier’s own coded cancellations at ATL and run across the row, so they total 100%. “Rate” is cancellations as a share of that carrier’s scheduled departures here. Two carriers on the same runways in the same weather can file very different splits, so read this as what each airline reported about itself, not as a ranking of fault. Carriers below the published minimum of coded cancellations are not listed.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026 · Reason codes are each airline’s own filing, not an independent finding of fault. Shown for airports with at least 500 coded cancellations; 13,306 were recorded at ATL.
Why flights run late at ATL
Where US DOT attributed the delay minutes on departures from ATL.
crew, maintenance, boarding and fueling, all within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for departures from ATL. Only delays of 15 minutes or more are attributed.
Of the 178,861 departures from ATL that left 15 or more minutes late and have a known inbound aircraft, 50% followed a flight that landed 15 or more minutes late. The other 50% left late even though the aircraft had come in on time or early. Across the 64 covered airports that share runs from 47% to 73%, with a median of 62%; ATL’s is the 3rd lowest.
The late flight is the one the same aircraft flew into ATL just before, found from the tail number in the DOT file. Airlines and hours differ from one airport to the next, so this describes the departures from ATL and does not rate the airport.
An airport is only partly the author of its own delays. Late-arriving aircraft describes the national schedule arriving here more than anything about this airfield. Air traffic control covers airspace and airport capacity, which is where a congested airport shows up; only the airline category sits squarely inside the carriers’ own operation. How differently they run it is further down this page.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What weather costs at ATL
Departures from ATL by the weather at the airport in the hour they were scheduled to leave, July 2023 – July 2026.
10.5% of scheduled departures from ATL left in an hour of bad weather. 3.4% of them were cancelled, against 1.0% in normal conditions, and 66.5% of the ones that flew arrived on time, against 80.2%. Those hours held 27% of all cancelled departures. That is about 2,515 more cancellations than the normal-conditions rate would give.
Cancellations were highest in snow or ice hours: 57.8% of 1,431 departures, 55.5 times the normal rate.
Airlines filed 48% of ATL’s coded cancellations under extreme weather. By the weather at the airport in the scheduled hour, 27% of cancelled departures were in bad-weather hours. A code is the airline’s stated reason and an hour’s weather is what the airport reported, so the two need not match.
By weather
Scheduled departures, July 2023 – July 2026| Weather at the airport | Departures | Cancelled | Left on time | Arrived on time | Avg. departure delay |
|---|---|---|---|---|---|
| Normal conditionsVFR with no thunderstorm, snow or ice, fog, heavy rain or high wind | 825,52181.6% of all | 1.0% | 79.8% | 80.2% | 11.1 min |
| Any bad weatherIFR or LIFR, or a thunderstorm, snow or ice, fog, heavy rain or high wind | 105,85410.5% of all | 3.4%3.3 times normal | 70.3% | 66.5%13.7 points below normal | 21.7 min |
| MVFRceiling 1,000 to 3,000 feet or visibility 3 to 5 miles | 86,1168.5% of all | 1.7%1.6 times normal | 77.7% | 77.5%2.7 points below normal | 13.1 min |
| IFRceiling 500 to 999 feet or visibility 1 to under 3 miles | 55,9635.5% of all | 2.8%2.7 times normal | 74.1% | 72.6%7.6 points below normal | 17.4 min |
| LIFRceiling under 500 feet or visibility under 1 mile | 24,9172.5% of all | 4.0%3.8 times normal | 72.3% | 68.4%11.8 points below normal | 20.9 min |
| Thunderstorma thunderstorm reported at the airport | 20,5712.0% of all | 4.0%3.8 times normal | 50.6% | 35.6%44.6 points below normal | 44.5 min |
| Snow or icesnow, snow grains, ice pellets, freezing rain or freezing drizzle | 1,4310.1% of all | 57.8%55.5 times normal | 49.5% | 27.0%53.2 points below normal | 73.6 min |
| Fogfog or freezing fog reported at the airport | 2,8210.3% of all | 4.5%4.3 times normal | 62.8% | 50.6%29.6 points below normal | 34.7 min |
| Heavy rainheavy rain reported at the airport | 8,8830.9% of all | 4.7%4.5 times normal | 51.3% | 39.7%40.5 points below normal | 43.5 min |
| High windwind of 25 knots or more, or gusts of 30 knots or more | 14,0231.4% of all | 5.9%5.7 times normal | 59.4% | 53.5%26.7 points below normal | 32.8 min |
| Low ceilinga broken or overcast layer under 1,000 feet | 71,4137.1% of all | 2.8%2.7 times normal | 76.3% | 75.3%4.9 points below normal | 15.1 min |
| Low visibilityvisibility under 3 miles | 42,3724.2% of all | 3.9%3.8 times normal | 69.5% | 65.6%14.6 points below normal | 23.5 min |
A departure is counted in every row its hour fits, so the rows overlap and do not add up. Left on time is a departure under 15 minutes late, and arrived on time an arrival under 15 minutes late; cancelled is the share of scheduled departures. Rows with fewer than 120 departures are not scored.
This is the weather reported at ATL in the hour a flight was scheduled to leave. It leaves out the weather at the destination and on the way, weather that arrived after the scheduled time, and anything else that goes wrong in a bad hour. An hour takes the worst conditions any report in it gave. Weather was matched to 99.9% of the airport’s scheduled departures; the rest left in hours with no report, or at a scheduled time the flight records cannot place exactly. Bad-weather hours are compared with normal hours at the same airport, not with what the same flights would have done in a clear sky: they also fall more often in some seasons and at some times of day.
Source: FlyerIntel analysis of US DOT BTS flight records and Iowa Environmental Mesonet weather reports · July 2023 – July 2026 · Where the weather comes from, and its limits. All covered airports side by side: What Weather Costs Each Airport.
Which airlines hold up in bad weather at ATL
Cancellations by airline in hours of bad weather at ATL, against the other carriers in the same months, July 2023 – July 2026.
10% of the weather-matched departures from ATL left in an hour of bad weather at the airport. 3.4% of them were cancelled. That is 3.3 times the 1.0% in normal hours. Delta Air Lines flew 70% of those departures, so the airport’s figure here is largely Delta Air Lines’ own, and the carriers it is compared with are the smaller ones.
Compared with the other carriers at ATL in the same months, Southwest Airlines (2.1% cancelled against 3.1% for the others; below them in normal hours too) cancelled the fewest in bad weather and PSA Airlines (7.7% cancelled against 3.9% for the others; above them in normal hours too) the most. 5 more airlines are also clearly apart from the others.
Airlines in bad weather at ATL
Scheduled departures, July 2023 – July 2026| Airline | Bad-weather departures | Cancelled | Other carriers | Normal hours |
|---|---|---|---|---|
| Southwest Airlines | 8,9538% of bad-weather | 2.1%below the others | 3.1% | 0.6%others 1.0% |
| American Airlines | 2,6583% of bad-weather | 2.4%below the others | 3.4% | 1.7%others 1.0% |
| United Airlines | 2,5672% of bad-weather | 2.6%below the others | 3.6% | 1.5%others 1.0% |
| Delta Air Lines | 73,91970% of bad-weather | 3.5% | 3.6% | 0.9%others 1.5% |
| Republic Airways | 5981% of bad-weather | 4.2% | 3.9% | 3.5%others 1.0% |
| SkyWest Airlines | 2,5052% of bad-weather | 4.0% | 3.5% | 1.1%others 1.0% |
| Spirit Airlines | 2,9653% of bad-weather | 3.9%above the others | 3.2% | 1.5%others 0.9% |
| JetBlue | 9771% of bad-weather | 4.0% | 3.3% | 2.4%others 1.0% |
| Endeavor Air | 4,0214% of bad-weather | 2.1%above the others | 1.2% | 0.7%others 0.8% |
| Frontier Airlines | 4,9285% of bad-weather | 5.0%above the others | 3.8% | 2.3%others 1.1% |
| PSA Airlines | 9821% of bad-weather | 7.7%above the others | 3.9% | 3.1%others 1.1% |
Best first. The other carriers’ column applies their rate in each month to the airline’s own departures, so a stormy month is not held against it; the normal-hours column gives the same pair outside bad weather.
The 11 listed airlines flew 99% of the bad-weather departures at ATL; a carrier under 500 is not listed. The comparison does not hold the hour of the day, the destination or the aircraft fixed, and a gap counts as clear only at 2 standard errors and 0.3 points. Republic Airways, SkyWest Airlines and Endeavor Air fly for mainline airlines and are counted as carriers of their own here, though they share the airport’s gates, its de-icing and often its decisions to cancel.
Source: FlyerIntel analysis of US DOT BTS flight records and Iowa Environmental Mesonet weather reports · July 2023 – July 2026 · Where the weather comes from, and its limits. All covered airports side by side: What Weather Costs Each Airport.
Turning aircraft around at ATL
Time on the ground between one flight and the next of the same aircraft at ATL, and what a late arrival does to the next departure, July 2023 – July 2026.
The median turn at ATL is scheduled for 69 minutes on the ground and takes 78 minutes, against 56 minutes and 63 minutes across all airports. Aircraft are given longer on the ground here than at the typical airport. The typical turn runs 9 minutes over its schedule, more than the 7 minutes it does across all airports. 15.5% of turns here began with an aircraft that landed 15 or more minutes late, below the 18.9% for all airports.
When the aircraft landed 15 or more minutes late (125,376 turns here, 60 minutes late on average), 69% of the turns were finished in no more than the scheduled ground time, against 68% across all airports. 67% of those flights left 15 or more minutes late, against 72%. After an aircraft that landed on time, 12% did (all airports 11%).
Given the turn lengths scheduled here, the network’s rates would give 75% finished in the schedule and 63% leaving late. ATL does worse on both counts: fewer late turns are finished in the schedule and more late aircraft become late departures, so a late arrival is more likely to stay late here than the schedule alone explains. 39% of its late-inbound turns had a scheduled turn of 60 to 89 minutes, against 29% across all airports.
Turns at ATL against all airports
807,862 turns, July 2023 – July 2026| Measure | ATL | All airports | All airports, same turn lengths |
|---|---|---|---|
| Median scheduled turn | 69 min | 56 min | — |
| Median actual turn | 78 min | 63 min | — |
| Turns that began with an aircraft 15+ minutes late | 16% | 19% | — |
| Late turns finished within the schedule | 69% | 68% | 75% |
| Late inbound that left 15+ minutes late | 67% | 72% | 63% |
| On-time inbound that left 15+ minutes late | 12% | 11% | — |
The last column is the network’s rate at the turn lengths scheduled at ATL, band by band from under 30 minutes to 3 to 6 hours. A turn finishes within the schedule when the aircraft spent no more time on the ground than the schedule gave it.
A turn pairs an aircraft’s landing at ATL with its next departure from it by tail number; the aircraft is never named. These 807,862 turns are 80% of the flights that left ATL in the period; the rest are an aircraft’s first flight after a long stay, flights without a usable inbound, and cancelled flights. Ground time runs from the gate. Turns under 30 minutes are kept, but most leave late even after an on-time landing. Airlines set their own turn schedules, so this describes the airlines that fly at ATL and does not rate the airport.
Source: FlyerIntel analysis of US DOT BTS flight records · July 2023 – July 2026 · Airports side by side: Where a Late Aircraft Gets Its Time Back.
What sets ATL apart
Where ATL’s hours, months, airlines and taxi time differ most from the other airports, July 2023 – July 2026.
Flights scheduled to leave ATL at 1 PM arrive on time 81.5% of the time, 4 points better than the 77.5% for that hour at the other airports.
11 PM is where ATL falls furthest behind the rest: 72.2% of its 11 PM departures arrive on time, 7.3 points below the 79.5% for that hour elsewhere.
October treats ATL better than it treats the rest of the country: 86.6% on time against 83.1% elsewhere, 3.5 points ahead.
July is ATL’s hardest month against the field, 67.4% on time to 70.3% elsewhere, 2.9 points short.
Endeavor Air does better out of ATL than anywhere else it flies: 87.0% on time here, 84.8% on its other departures, 2.2 points apart.
Frontier Airlines’ departures from ATL arrive on time 63.4% of the time, 9 points worse than the 72.4% the same airline manages at its other airports.
Taxi-out at ATL averages 16.7 minutes, 2.1 minutes less than the 18.8 minutes elsewhere.
ATL against the other airports
July 2023 – July 2026| Measure | ATL | Elsewhere | Gap | Flights behind it |
|---|---|---|---|---|
| Hour: 1 PM departures | 81.5% | 77.5% | +4.0 pts | 50,006 here, 964,354 elsewhere |
| Hour: 11 PM departures | 72.2% | 79.5% | −7.3 pts | 12,753 here, 161,302 elsewhere |
| Month: October | 86.6% | 83.1% | +3.5 pts | 86,163 here, 1,406,742 elsewhere |
| Month: July | 67.4% | 70.3% | −2.9 pts | 112,820 here, 1,873,663 elsewhere |
| Airline: Endeavor Air | 87.0% | 84.8% | +2.2 pts | 37,510 here, 259,128 elsewhere |
| Airline: Frontier Airlines | 63.4% | 72.4% | −9.0 pts | 44,599 here, 570,362 elsewhere |
| Taxi-out: Departures | 16.7 min | 18.8 min | −2.1 min | 999,364 here, 16,630,745 elsewhere |
"Elsewhere" is every other covered airport together, taken from the same aggregates as this page with ATL’s own flights removed (for airlines, that airline’s flights from all its other airports). Hours, months and airlines appear only where both sides have at least 120 completed flights (airlines 500) and the gap is at least 2 points and 2 standard errors; only the largest gap in each direction is shown. The taxi figure is weighted by departures and has no error estimate, so it appears from 2 minutes.
Best time to fly from ATL
On-time arrival rate by scheduled local departure time: each weekday and hour, and averaged over the week.
Flights departing 5–9 AM arrived on time 88.1% of the time, against 70.4% for 6–9 PM departures — a gap of 17.7 percentage points.
By day and hour
On-time arrival rate for each weekday and scheduled departure hour, in local time.
Wednesday 6–7 AM was the most reliable slot at ATL (91.3% on time, 2,549 flights) and Sunday 8–9 PM the least (63.4%, 8,536 flights).
Hour of departure matters more than day of the week: hourly averages sit a typical 6.3 points from the airport-wide rate, weekday averages 2.9 points.
| Hour | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
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On-time rate, % · stronger color, fewer on time
- 60–64
- 65–69
- 70–74
- 75–79
- 80–84
- 85–89
- 90–94
- Most reliable slot
- Least reliable slot
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · On time is arrival within 15 minutes of schedule. Cells round to whole percentages; the table shows one decimal.
Best and worst slots are named only among slots with 500+ flights, and only when the gap is larger than sampling error. Departures before 5 AM (10 flights) are not drawn: no slot in those hours has enough flights to score.
View as tableHide table
| Hour | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
|---|---|---|---|---|---|---|---|
| 5 AM–6 AM | 87.9% on time923 flights | 89.2% on time804 flights | 87.8% on time756 flights | 89.4% on time924 flights | 87.8% on time960 flights | 87.8% on time820 flights | 85.4% on time933 flights |
| 6 AM–7 AM | 88.7% on time3,164 flights | 91.0% on time2,542 flights | 91.3% on time2,549 flights | 90.5% on time3,019 flights | 88.7% on time3,097 flights | 87.9% on time2,489 flights | 88.1% on time2,752 flights |
| 7 AM–8 AM | 86.9% on time7,006 flights | 88.9% on time6,568 flights | 88.3% on time6,682 flights | 88.5% on time6,979 flights | 86.6% on time7,019 flights | 87.0% on time4,774 flights | 86.6% on time6,537 flights |
| 8 AM–9 AM | 86.2% on time11,630 flights | 88.3% on time11,336 flights | 90.4% on time11,274 flights | 89.0% on time11,706 flights | 88.0% on time11,772 flights | 87.5% on time10,691 flights | 86.8% on time11,619 flights |
| 9 AM–10 AM | 82.1% on time11,016 flights | 86.0% on time10,700 flights | 88.0% on time10,684 flights | 85.6% on time10,929 flights | 84.6% on time10,909 flights | 83.9% on time9,816 flights | 82.2% on time10,825 flights |
| 10 AM–11 AM | 82.3% on time9,029 flights | 86.1% on time8,432 flights | 87.7% on time8,362 flights | 85.1% on time8,935 flights | 83.5% on time9,043 flights | 80.5% on time7,698 flights | 82.4% on time8,791 flights |
| 11 AM–12 PM | 81.8% on time9,706 flights | 87.0% on time9,814 flights | 87.5% on time9,836 flights | 85.1% on time9,746 flights | 83.3% on time9,712 flights | 81.7% on time10,005 flights | 81.2% on time9,758 flights |
| 12 PM–1 PM | 81.0% on time8,050 flights | 86.0% on time8,101 flights | 86.4% on time8,125 flights | 83.9% on time7,973 flights | 81.8% on time8,040 flights | 81.9% on time7,116 flights | 79.0% on time7,828 flights |
| 1 PM–2 PM | 80.4% on time7,457 flights | 84.0% on time7,149 flights | 85.2% on time7,154 flights | 82.7% on time7,377 flights | 79.6% on time7,424 flights | 81.0% on time6,651 flights | 78.0% on time7,388 flights |
| 2 PM–3 PM | 77.6% on time7,585 flights | 81.8% on time7,128 flights | 83.7% on time7,116 flights | 78.6% on time7,460 flights | 77.3% on time7,536 flights | 79.4% on time6,803 flights | 73.9% on time7,463 flights |
| 3 PM–4 PM | 75.3% on time10,744 flights | 77.9% on time10,458 flights | 79.8% on time10,510 flights | 75.9% on time10,678 flights | 73.9% on time10,635 flights | 76.9% on time8,889 flights | 71.4% on time10,592 flights |
| 4 PM–5 PM | 72.8% on time9,246 flights | 76.6% on time8,450 flights | 79.4% on time8,455 flights | 72.9% on time9,140 flights | 71.4% on time9,225 flights | 73.7% on time7,155 flights | 67.0% on time9,163 flights |
| 5 PM–6 PM | 72.0% on time8,038 flights | 77.1% on time6,998 flights | 78.1% on time7,131 flights | 71.0% on time7,911 flights | 69.1% on time7,956 flights | 74.3% on time6,618 flights | 66.2% on time7,794 flights |
| 6 PM–7 PM | 70.2% on time6,891 flights | 76.5% on time6,986 flights | 76.9% on time7,008 flights | 68.6% on time6,857 flights | 67.1% on time6,846 flights | 72.8% on time6,857 flights | 65.3% on time6,901 flights |
| 7 PM–8 PM | 69.9% on time9,801 flights | 74.4% on time9,139 flights | 75.4% on time9,235 flights | 68.0% on time9,751 flights | 67.8% on time9,800 flights | 72.7% on time7,861 flights | 64.8% on time9,527 flights |
| 8 PM–9 PM | 69.8% on time8,335 flights | 74.9% on time6,423 flights | 77.9% on time6,589 flights | 67.8% on time8,390 flights | 66.4% on time8,394 flights | 71.8% on time5,811 flights | 63.4% on time8,536 flights |
| 9 PM–10 PM | 73.0% on time9,938 flights | 79.6% on time8,094 flights | 79.9% on time8,137 flights | 73.0% on time9,798 flights | 69.4% on time9,789 flights | 75.9% on time7,585 flights | 67.2% on time9,781 flights |
| 10 PM–11 PM | 74.1% on time10,777 flights | 81.0% on time9,733 flights | 82.1% on time9,760 flights | 73.9% on time10,648 flights | 71.3% on time10,932 flights | 79.0% on time9,453 flights | 67.3% on time10,985 flights |
| 11 PM–12 AM | 70.1% on time2,220 flights | 78.5% on time1,491 flights | 79.7% on time1,523 flights | 70.0% on time2,180 flights | 68.6% on time2,207 flights | 80.4% on time1,237 flights | 65.5% on time2,250 flights |
By departure window
All days combinedBy departure hour
All days combined- 12 AM to 4 AM: too few flights to score
- 5 AM: 87.9% on time from 6,120 flights
- 6 AM: 89.4% on time from 19,612 flights
- 7 AM: 87.6% on time from 45,565 flights
- 8 AM: 88.0% on time from 80,028 flights
- 9 AM: 84.6% on time from 74,879 flights
- 10 AM: 84.0% on time from 60,290 flights
- 11 AM: 84.0% on time from 68,577 flights
- 12 PM: 82.9% on time from 55,233 flights
- 1 PM: 81.5% on time from 50,600 flights
- 2 PM: 78.9% on time from 51,091 flights
- 3 PM: 75.8% on time from 72,506 flights
- 4 PM: 73.3% on time from 60,834 flights
- 5 PM: 72.3% on time from 52,446 flights
- 6 PM: 71.1% on time from 48,346 flights
- 7 PM: 70.3% on time from 65,114 flights
- 8 PM: 69.8% on time from 52,478 flights
- 9 PM: 73.6% on time from 63,122 flights
- 10 PM: 75.3% on time from 72,288 flights
- 11 PM: 72.2% on time from 13,108 flights
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Buckets with fewer than 120 flights are not scored.
What parking will cost
Estimated from ATL's own published rates.
Estimated cost
Choose a facility and both dates to see an estimate.
Rates as published by the airport, last read 2026-08-31. Confirm before you travel.
Source: Hartsfield-Jackson Atlanta International Airport · An estimate from published standard rates. Airports vary surcharges, oversize vehicle fees and event pricing, so confirm the price with the airport before you travel.
International arrivals
How long passport control normally takes here, hour by hour and hall by hall. This is the arrivals queue, not departure security — and it is history, not a live wait.
At Concourse E, ATL’s busiest hall, both passport queues run much the same: a typical 5 min on a US passport and 8 min on any other, rising to 18 min on a busy day. Where the two halls agree like this, CBP’s combined figure of 6 min is a fair summary of both — which is not true everywhere, and is why they are shown apart.
Terminal by terminal, across the day
| Terminal | US passports | US busy day | Other passports | Other busy day | Global Entry |
|---|---|---|---|---|---|
| Concourse E | 5 min | 11 min | 8 min | 18 min | 14.7% of arrivals |
| Concourse F | 6 min | 14 min | 10 min | 26 min | 13.0% of arrivals |
Your terminal is set by the airline you arrive on, not by you. This is here so you can read the hall you will actually land in.
Showing customs wait times for Concourse EUS passports — Concourse E
- 12 AM–1 AM: too few records to publish
- 1 AM–2 AM: too few records to publish
- 2 AM–3 AM: too few records to publish
- 3 AM–4 AM: too few records to publish
- 4 AM–5 AM: too few records to publish
- 5 AM–6 AM: typically 0 min, 1 min on a busy day (262 days)
- 6 AM–7 AM: typically 0 min, 2 min on a busy day (200 days)
- 7 AM–8 AM: typically 0 min, 2 min on a busy day (221 days)
- 8 AM–9 AM: typically 0 min, 1 min on a busy day (131 days)
- 9 AM–10 AM: too few records to publish
- 10 AM–11 AM: too few records to publish
- 11 AM–12 PM: typically 0 min, 16 min on a busy day (126 days)
- 12 PM–1 PM: typically 1 min, 12 min on a busy day (370 days)
- 1 PM–2 PM: typically 3 min, 11 min on a busy day (557 days)
- 2 PM–3 PM: typically 5 min, 9 min on a busy day (776 days)
- 3 PM–4 PM: typically 4 min, 8 min on a busy day (776 days)
- 4 PM–5 PM: typically 5 min, 8 min on a busy day (779 days)
- 5 PM–6 PM: typically 6 min, 10 min on a busy day (780 days)
- 6 PM–7 PM: typically 7 min, 13 min on a busy day (780 days)
- 7 PM–8 PM: typically 8 min, 14 min on a busy day (779 days)
- 8 PM–9 PM: typically 6 min, 11 min on a busy day (777 days)
- 9 PM–10 PM: typically 4 min, 9 min on a busy day (507 days)
- 10 PM–11 PM: too few records to publish
- 11 PM–12 AM: too few records to publish
US citizens and lawful permanent residents, who use the US-passport lanes.
All other passports — Concourse E
- 12 AM–1 AM: too few records to publish
- 1 AM–2 AM: too few records to publish
- 2 AM–3 AM: too few records to publish
- 3 AM–4 AM: too few records to publish
- 4 AM–5 AM: too few records to publish
- 5 AM–6 AM: typically 0 min, 8 min on a busy day (262 days)
- 6 AM–7 AM: typically 0 min, 8 min on a busy day (200 days)
- 7 AM–8 AM: typically 0 min, 6 min on a busy day (221 days)
- 8 AM–9 AM: typically 0 min, 4 min on a busy day (131 days)
- 9 AM–10 AM: too few records to publish
- 10 AM–11 AM: too few records to publish
- 11 AM–12 PM: typically 2 min, 17 min on a busy day (126 days)
- 12 PM–1 PM: typically 3 min, 21 min on a busy day (370 days)
- 1 PM–2 PM: typically 8 min, 22 min on a busy day (557 days)
- 2 PM–3 PM: typically 9 min, 18 min on a busy day (776 days)
- 3 PM–4 PM: typically 7 min, 16 min on a busy day (776 days)
- 4 PM–5 PM: typically 7 min, 14 min on a busy day (779 days)
- 5 PM–6 PM: typically 10 min, 18 min on a busy day (780 days)
- 6 PM–7 PM: typically 12 min, 22 min on a busy day (780 days)
- 7 PM–8 PM: typically 11 min, 22 min on a busy day (779 days)
- 8 PM–9 PM: typically 9 min, 18 min on a busy day (777 days)
- 9 PM–10 PM: typically 7 min, 14 min on a busy day (507 days)
- 10 PM–11 PM: too few records to publish
- 11 PM–12 AM: too few records to publish
Every other arriving passenger, including visa and visa-waiver travelers.
Hour by hour — Concourse E
| Cleared in hour | US passports | US busy day | Other passports | Other busy day | Booths open |
|---|---|---|---|---|---|
| 5 AM–6 AM | 0 min | 1 min | 0 min | 8 min | 9 |
| 6 AM–7 AM | 0 min | 2 min | 0 min | 8 min | 9 |
| 7 AM–8 AM | 0 min | 2 min | 0 min | 6 min | 9 |
| 8 AM–9 AM | 0 min | 1 min | 0 min | 4 min | 8 |
| 11 AM–12 PM | 0 min | 16 min | 2 min | 17 min | 7 |
| 12 PM–1 PM | 1 min | 12 min | 3 min | 21 min | 10 |
| 1 PM–2 PM | 3 min | 11 min | 8 min | 22 min | 15 |
| 2 PM–3 PM | 5 min | 9 min | 9 min | 18 min | 19 |
| 3 PM–4 PM | 4 min | 8 min | 7 min | 16 min | 19 |
| 4 PM–5 PM | 5 min | 8 min | 7 min | 14 min | 20 |
| 5 PM–6 PM | 6 min | 10 min | 10 min | 18 min | 19 |
| 6 PM–7 PM | 7 min | 13 min | 12 min | 22 min | 20 |
| 7 PM–8 PM | 8 min | 14 min | 11 min | 22 min | 20 |
| 8 PM–9 PM | 6 min | 11 min | 9 min | 18 min | 18 |
| 9 PM–10 PM | 4 min | 9 min | 7 min | 14 min | 15 |
US passports: clearing in the 7 PM–8 PM hour typically takes 8 min, against 0 min in the 5 AM–6 AM hour — 8 min between the slowest and fastest of 15 measured hours.
All other passports: clearing in the 6 PM–7 PM hour typically takes 12 min, against 0 min in the 5 AM–6 AM hour — 12 min between the slowest and fastest of 15 measured hours.
The hour is when CBP processed the passenger, not when the aircraft landed — allow for the walk from the gate. Hours with fewer than 120 days of records are not listed rather than shown as an estimate, which is why a terminal’s quietest hours are usually absent. “Busy day” is the 90th percentile: one arrival in ten is worse than that. Booths are how many CBP had open, and they follow the queue rather than prevent it — the busiest hours are staffed hardest and are still the slowest.
Source: US Customs and Border Protection · 2024-08-28 to 2026-10-16 · These are CBP passport control waits for arriving international passengers — a different queue from TSA departure screening. CBP publishes them about two days in arrears, so every figure here describes what has been typical over 2024-08-28 to 2026-10-16, and none of it is a live queue or a forecast for your flight. US and non-US passengers are reported separately by CBP and are kept separate here, because they are separate halls. FlyerIntel publishes a terminal or an hour only where CBP filed at least 120 hourly records for it, and an hour-by-hour breakdown only where at least 6 hours clear that floor.
What to expect at ATL
How busy the airport is through the day, from scheduled departure volume.
Scheduled departures by hour
- 12 AM: fewer than one departure a day
- 1 AM: no departures
- 2 AM: no departures
- 3 AM: no departures
- 4 AM: no departures
- 5 AM: about 5 departures a day
- 6 AM: about 17 departures a day
- 7 AM: about 40 departures a day
- 8 AM: about 71 departures a day
- 9 AM: about 66 departures a day
- 10 AM: about 53 departures a day
- 11 AM: about 61 departures a day
- 12 PM: about 49 departures a day
- 1 PM: about 45 departures a day
- 2 PM: about 45 departures a day
- 3 PM: about 64 departures a day
- 4 PM: about 54 departures a day
- 5 PM: about 47 departures a day
- 6 PM: about 43 departures a day
- 7 PM: about 58 departures a day
- 8 PM: about 47 departures a day
- 9 PM: about 56 departures a day
- 10 PM: about 64 departures a day
- 11 PM: about 12 departures a day
The busiest hour is 8 AM, with about 71 departures a day, against roughly 17 at 6 AM. That peak is also more punctual than a typical hour here: early banks fly aircraft that spent the night on the ground rather than ones inheriting the day’s delays.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Taxi-out runs from gate to wheels-up, averaged over departures and weighted by hour. Taxi-in runs from touchdown to gate.
Weekly and seasonal patterns
By day of week
Wednesday is historically the most reliable day and Sunday the least, a gap of 9.1 percentage points.
By month
- Jan: 78.1% on time
- Feb: 82.1% on time
- Mar: 78.2% on time
- Apr: 80.3% on time
- May: 73.4% on time
- Jun: 74.9% on time
- Jul: 67.4% on time
- Aug: 77.7% on time
- Sep: 85.2% on time
- Oct: 86.6% on time
- Nov: 85.8% on time
- Dec: 79.7% on time
July is historically the weakest month and October the strongest, a spread of 19.2 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
Airlines at ATL
Departure performance by operating carrier. Regional flights are reported by the carrier that operated them, not by the mainline brand.
| Carrier | Departures | On time | Cancelled | Median delay |
|---|---|---|---|---|
| Delta Air Lines DL | 717,729 | 79.9% | 1.20% | -5 min |
| Southwest Airlines WN | 84,155 | 78.0% | 0.81% | -3 min |
| Frontier Airlines F9 | 45,876 | 63.4% | 2.61% | 2 min |
| Endeavor Air 9E | 37,949 | 87.0% | 0.87% | -9 min |
| Spirit Airlines NK | 26,429 | 72.0% | 1.82% | -3 min |
| SkyWest Airlines OO | 23,987 | 76.1% | 1.39% | -5 min |
| United Airlines UA | 23,137 | 80.0% | 1.59% | -7 min |
| American Airlines AA | 22,880 | 77.0% | 1.78% | -6 min |
| JetBlue B6 | 8,879 | 70.9% | 2.59% | -3 min |
| PSA Airlines OH | 8,554 | 77.0% | 3.80% | -7 min |
| Republic Airways YX | 5,744 | 79.3% | 3.60% | -8 min |
| Alaska Airlines AS | 4,295 | 74.7% | 1.14% | -3 min |
| Envoy Air MQ | 2,633 | 75.3% | 2.51% | -4 min |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Carriers with fewer than 500 departures are not listed.
Routes from ATL
Ranked by FlyerIntel Route Reliability Score.
Most reliable
Busiest routes
| Destination | Flights | On time | Score |
|---|---|---|---|
| ATL → MCO Orlando | 26,724 | 71.3% | 50 |
| ATL → LGA New York | 24,620 | 76.4% | 54 |
| ATL → FLL Fort Lauderdale | 22,817 | 72.0% | 52 |
| ATL → DCA Washington | 21,171 | 73.7% | 51 |
| ATL → DFW Dallas–Fort Worth | 20,334 | 72.8% | 47 |
| ATL → MIA Miami | 20,130 | 71.5% | 50 |
| ATL → TPA Tampa | 19,949 | 73.7% | 54 |
| ATL → EWR Newark | 18,656 | 72.5% | 41 |
| ATL → ORD Chicago | 18,588 | 74.1% | 53 |
| ATL → BWI Baltimore | 18,148 | 75.5% | 58 |
| ATL → DEN Denver | 18,103 | 77.1% | 66 |
| ATL → PHL Philadelphia | 17,909 | 74.7% | 53 |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Only routes with at least 10,000 flights are ranked.
Reliability over time
On-time arrival rate for departures, by month.
- July 2023: 70.9% on time from 29,919 flights
- August 2023: 75.1% on time from 29,431 flights
- September 2023: 84.8% on time from 28,344 flights
- October 2023: 88.7% on time from 29,251 flights
- November 2023: 90.1% on time from 27,473 flights
- December 2023: 87.2% on time from 28,027 flights
- January 2024: 79.0% on time from 26,315 flights
- February 2024: 87.5% on time from 24,821 flights
- March 2024: 81.5% on time from 28,459 flights
- April 2024: 81.5% on time from 28,419 flights
- May 2024: 72.3% on time from 29,870 flights
- June 2024: 79.9% on time from 29,361 flights
- July 2024: 63.2% on time from 30,072 flights
- August 2024: 79.7% on time from 29,480 flights
- September 2024: 84.3% on time from 28,247 flights
- October 2024: 89.2% on time from 29,837 flights
- November 2024: 86.5% on time from 28,015 flights
- December 2024: 78.0% on time from 29,014 flights
- January 2025: 76.8% on time from 23,881 flights
- February 2025: 78.0% on time from 22,640 flights
- March 2025: 77.9% on time from 26,468 flights
- April 2025: 77.1% on time from 25,490 flights
- May 2025: 70.9% on time from 27,275 flights
- June 2025: 64.4% on time from 27,728 flights
- July 2025: 68.8% on time from 28,551 flights
- August 2025: 78.4% on time from 27,353 flights
- September 2025: 86.5% on time from 25,839 flights
- October 2025: 81.6% on time from 27,556 flights
- November 2025: 80.3% on time from 25,888 flights
- December 2025: 73.2% on time from 25,764 flights
- January 2026: 78.3% on time from 24,595 flights
- February 2026: 80.3% on time from 23,024 flights
- March 2026: 74.8% on time from 26,669 flights
- April 2026: 82.1% on time from 26,607 flights
- May 2026: 77.2% on time from 27,535 flights
- June 2026: 80.1% on time from 26,961 flights
- July 2026: 66.5% on time from 28,068 flights
Over the most recent 12 months (2025-08 to 2026-07), departures from ATL arrived on time 78.2% of the time, against 77.7% in the 12 months before — broadly unchanged.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026
Data and sources
Historical statistics
Every historical figure on this page is calculated by FlyerIntel from US DOT Bureau of Transportation Statistics on-time performance records covering July 2023 – July 2026, comprising 1,012,247 departures from ATL. A flight counts as delayed when it arrives 15 or more minutes after schedule.
Full methodology · All data sources
Related research: The Day After the Holiday · The Least Reliable Hour of the Week · The Best Major Airports for a Tight Connection · Which Months Cancel the Most Flights
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<a href="https://flyerintel.com/airports/atl/"><img src="https://flyerintel.com/badge/airport/atl/" alt="Hartsfield-Jackson Atlanta International Airport on-time performance, from FlyerIntel"></a>Live conditions
Aviation weather comes from the NOAA Aviation Weather Center. Operational events come from the FAA where available. FlyerIntel shows the age of every live value and does not display data it cannot currently retrieve.
Latest observation for ATL: METAR KATL 180752Z 08010KT 10SM CLR 10/03 A3038 RMK AO2 SLP287 T01000033 $ (issued ).