SAT Airport: 82.3% on time, worst at 8 PM

SAT right now

Live conditions where a permitted source publishes them, and the historical record where none does.

No disruption reported

Aviation weather is not currently a factor.

Aviation weatherVFR

50°F · wind 3 kt

Minimal operational impact. Conditions are not a notable factor for operations right now.

Updated 08:51 UTC

Forecast issued 05:37Z.

Updated 05:37 UTC

Aircraft seen now

On the field0

Airborne within 15 NM0

Departed in the last hour0

Arrived in the last hour0

Below 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.

Updated 09:06 UTC

Aircraft 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 SAT, July 2023 – July 2026.

Airport Reliability Score

71/ 100Good

Better than 74% of major US airports covered by FlyerIntel (64 compared)

Calculated from 127,237 flights. How this is calculated

Departures arriving on time

82.3%

103,230 of 125,468 completed

Cancellation rate

1.15%

1,463 cancelled

Median arrival delay

-7 min

Average 5.4 min

Severe delays

6.2%

Arrived 60+ minutes late

Delay when late

75 min

Average, when 15+ min late

Departures analyzed

127,237

127,244 arrivals

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026

Why flights are cancelled at SAT

Every cancellation carries a reason code filed by the airline that operated the flight. Departures, July 2023 – July 2026.

Extreme weather accounts for 62.7% of cancelled departures from SAT — about 1 in every 139 scheduled departures. That is close to the split across every airport FlyerIntel covers.

Share of cancellations

Weather62.7%

Airline31.0%

Air traffic6.4%

Security0.0%

Of 1,463 cancelled departures carrying a reason code.

What each reason means

Extreme weather1 in 139

Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.

917 cancellations, 62.7% of the total.

The airline1 in 281

Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.

453 cancellations, 31.0% of the total.

The air traffic system1 in 1,368

Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.

93 cancellations, 6.4% of the total.

Security—

A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.

0 cancellations, 0.0% of the total.

1,463 of 127,237 scheduled departures from SAT were cancelled. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.

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; 1,463 were recorded at SAT.

Why flights run late at SAT

Where US DOT attributed the delay minutes on departures from SAT.

Late-arriving aircraft44.6%

the inbound aircraft was late, so this flight started late

The airline30.8%

crew, maintenance, boarding and fueling, all within the carrier’s control

Air traffic control18.9%

airspace and airport capacity, including weather-driven flow control

Weather5.6%

weather severe enough to stop this flight specifically

Security0.1%

screening or terminal security incidents

Share of the delay minutes US DOT attributed to each cause for departures from SAT. Only delays of 15 minutes or more are attributed.

Of the 21,336 departures from SAT that left 15 or more minutes late and have a known inbound aircraft, 65% followed a flight that landed 15 or more minutes late. The other 35% 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%; SAT’s is the 14th highest.

The late flight is the one the same aircraft flew into SAT 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 SAT 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 SAT

Departures from SAT by the weather at the airport in the hour they were scheduled to leave, July 2023 – July 2026.

8.6% of scheduled departures from SAT left in an hour of bad weather. 1.7% of them were cancelled, against 1.1% in normal conditions, and 82.0% of the ones that flew arrived on time, against 81.0%. Those hours held 13% of all cancelled departures. That is about 69 more cancellations than the normal-conditions rate would give.

Cancellations were highest in thunderstorm hours: 2.5% of 1,485 departures, 2.3 times the normal rate.

Airlines filed 63% of SAT’s coded cancellations under extreme weather. By the weather at the airport in the scheduled hour, 13% 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

Cancellation and on-time rates at SAT by the weather at the airport in the scheduled departure hour
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	90,52071.1% of all	1.1%	80.3%	81.0%	11.7 min
Any bad weatherIFR or LIFR, or a thunderstorm, snow or ice, fog, heavy rain or high wind	10,9968.6% of all	1.7%1.6 times normal	82.9%	82.0%1.0 points above normal	11.1 min
MVFRceiling 1,000 to 3,000 feet or visibility 3 to 5 miles	26,47420.8% of all	1.3%	86.0%	86.0%5.0 points above normal	8.0 min
IFRceiling 500 to 999 feet or visibility 1 to under 3 miles	6,4965.1% of all	1.6%	87.5%	86.7%5.7 points above normal	7.2 min
LIFRceiling under 500 feet or visibility under 1 mile	2,2831.8% of all	0.7%	88.1%	87.3%6.3 points above normal	7.2 min
Thunderstorma thunderstorm reported at the airport	1,4851.2% of all	2.5%2.3 times normal	57.6%	55.8%25.2 points below normal	33.8 min
Fogfog or freezing fog reported at the airport	7030.6% of all	0.4%	93.1%	90.6%9.6 points above normal	4.1 min
Heavy rainheavy rain reported at the airport	6400.5% of all	1.9%1.8 times normal	55.9%	56.9%24.1 points below normal	38.0 min
High windwind of 25 knots or more, or gusts of 30 knots or more	1,1650.9% of all	2.3%2.2 times normal	69.0%	66.9%14.1 points below normal	22.9 min
Low ceilinga broken or overcast layer under 1,000 feet	8,4126.6% of all	1.3%	88.6%	87.8%6.8 points above normal	6.0 min
Low visibilityvisibility under 3 miles	3,0272.4% of all	0.9%	83.8%	83.6%2.6 points above normal	10.7 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. Too few departures to score: snow or ice (113).

This is the weather reported at SAT 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 100.0% 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 SAT

Cancellations by airline in hours of bad weather at SAT, against the other carriers in the same months, July 2023 – July 2026.

9% of the weather-matched departures from SAT left in an hour of bad weather at the airport. 1.7% of them were cancelled. That is 1.6 times the 1.1% in normal hours. No one carrier holds most of them; 4 airlines have enough to compare.

Compared with the other carriers at SAT in the same months, Southwest Airlines (0.9% cancelled against 2.0% for the others; below them in normal hours too) cancelled the fewest in bad weather and American Airlines (2.7% cancelled against 1.3% for the others; above them in normal hours too) the most. 1 more airline is also clearly apart from the others.

Airlines in bad weather at SAT

Scheduled departures, July 2023 – July 2026

Cancellation rates by airline in hours of bad weather at SAT, against the other carriers in the same months and against the airline's own normal hours
Airline	Bad-weather departures	Cancelled	Other carriers	Normal hours
Southwest Airlines	4,14238% of bad-weather	0.9%below the others	2.0%	0.6%others 1.4%
Delta Air Lines	1,70916% of bad-weather	1.0%below the others	1.9%	1.0%others 1.1%
United Airlines	1,58614% of bad-weather	1.4%	1.7%	1.1%others 1.1%
American Airlines	2,37522% of bad-weather	2.7%above the others	1.3%	1.7%others 0.9%

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 4 listed airlines flew 89% of the bad-weather departures at SAT; 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.

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 SAT

Time on the ground between one flight and the next of the same aircraft at SAT, and what a late arrival does to the next departure, July 2023 – July 2026.

The median turn at SAT is scheduled for 50 minutes on the ground and takes 57 minutes, against 56 minutes and 63 minutes across all airports. Aircraft are given less time on the ground here than at the typical airport. The 7 minutes by which the typical turn runs over its schedule are about what it is across all airports.

When the aircraft landed 15 or more minutes late (17,199 turns here, 56 minutes late on average), 64% of the turns were finished in no more than the scheduled ground time, against 68% across all airports. 75% of those flights left 15 or more minutes late, against 72%. After an aircraft that landed on time, 9% did (all airports 11%).

Given the turn lengths scheduled here, the network’s rates would give 64% finished in the schedule and 76% leaving late. At these turn lengths SAT looks like the network on both counts: late turns are finished in the schedule, and lateness passed on, about as often as elsewhere. 41% of its late-inbound turns had a scheduled turn of 45 to 59 minutes, against 31% across all airports.

Turns at SAT against all airports

88,217 turns, July 2023 – July 2026

Aircraft turns at SAT against all airports: scheduled and actual time on the ground and what a late inbound aircraft does
Measure	SAT	All airports	All airports, same turn lengths
Median scheduled turn	50 min	56 min	—
Median actual turn	57 min	63 min	—
Turns that began with an aircraft 15+ minutes late	19%	19%	—
Late turns finished within the schedule	64%	68%	64%
Late inbound that left 15+ minutes late	75%	72%	76%
On-time inbound that left 15+ minutes late	9%	11%	—

The last column is the network’s rate at the turn lengths scheduled at SAT, 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 SAT with its next departure from it by tail number; the aircraft is never named. These 88,217 turns are 69% of the flights that left SAT 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 SAT 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 SAT apart

Where SAT’s hours, months, airlines and taxi time differ most from the other airports, July 2023 – July 2026.

Flights scheduled to leave SAT at 11 AM arrive on time 85.9% of the time, 4.7 points better than the 81.2% for that hour at the other airports.

August treats SAT better than it treats the rest of the country: 82.9% on time against 76.7% elsewhere, 6.2 points ahead.

United Airlines does better out of SAT than anywhere else it flies: 85.1% on time here, 79.7% on its other departures, 5.4 points apart.

JetBlue’s departures from SAT arrive on time 66.6% of the time, 5.9 points worse than the 72.5% the same airline manages at its other airports.

Taxi-out at SAT averages 13.1 minutes, 5.6 minutes less than the 18.7 minutes elsewhere.

SAT against the other airports

July 2023 – July 2026

Where SAT differs most from the other covered airports, with the flights behind each figure
Measure	SAT	Elsewhere	Gap	Flights behind it
Hour: 11 AM departures	85.9%	81.2%	+4.7 pts	6,361 here, 1,078,211 elsewhere
Month: August	82.9%	76.7%	+6.2 pts	10,438 here, 1,463,397 elsewhere
Airline: United Airlines	85.1%	79.7%	+5.4 pts	17,167 here, 2,365,403 elsewhere
Airline: JetBlue	66.6%	72.5%	−5.9 pts	921 here, 725,393 elsewhere
Taxi-out: Departures	13.1 min	18.7 min	−5.6 min	125,825 here, 17,504,284 elsewhere

"Elsewhere" is every other covered airport together, taken from the same aggregates as this page with SAT’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 SAT

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 91.3% of the time, against 70.1% for 6–9 PM departures — a gap of 21.2 percentage points.

By day and hour

On-time arrival rate for each weekday and scheduled departure hour, in local time.

Tuesday 5–6 AM was the most reliable slot at SAT (94.6% on time, 1,314 flights) and Sunday 8–9 PM the least (64.0%, 735 flights).

Hour of departure matters more than day of the week: hourly averages sit a typical 8.2 points from the airport-wide rate, weekday averages 1.9 points.

On-time arrival rate at SAT by weekday and scheduled departure hour, local time. Each button reads out one slot.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
5 AM–6 AM
6 AM–7 AM
7 AM–8 AM
8 AM–9 AM
9 AM–10 AM
10 AM–11 AM
11 AM–12 PM
12 PM–1 PM
1 PM–2 PM
2 PM–3 PM
3 PM–4 PM
4 PM–5 PM
5 PM–6 PM
6 PM–7 PM
7 PM–8 PM
8 PM–9 PM
9 PM–10 PM
10 PM–11 PM

On-time rate, % · stronger color, fewer on time

60–69
70–79
80–89
90–99

Fewer than 120 flights, not scored
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 after 11 PM (31 flights) are not drawn: no slot in those hours has enough flights to score.

View as tableHide table

On-time arrival rate (%) with flights beneath, by scheduled departure hour and weekday at SAT. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
5 AM–6 AM	93.7% on time1,664 flights	94.6% on time1,314 flights	93.1% on time1,270 flights	93.5% on time1,673 flights	92.4% on time1,700 flights	93.7% on time1,492 flights	93.8% on time1,551 flights
6 AM–7 AM	90.6% on time2,013 flights	93.4% on time1,917 flights	93.7% on time1,937 flights	92.1% on time1,980 flights	90.8% on time1,998 flights	92.0% on time1,939 flights	92.1% on time1,981 flights
7 AM–8 AM	89.8% on time1,724 flights	91.1% on time1,841 flights	91.8% on time1,747 flights	90.6% on time1,645 flights	89.7% on time1,710 flights	90.3% on time1,685 flights	89.9% on time1,682 flights
8 AM–9 AM	86.7% on time831 flights	89.3% on time919 flights	88.9% on time924 flights	87.8% on time822 flights	86.1% on time829 flights	86.8% on time891 flights	88.2% on time927 flights
9 AM–10 AM	86.1% on time753 flights	89.0% on time703 flights	89.6% on time700 flights	87.9% on time739 flights	87.3% on time763 flights	87.0% on time709 flights	85.2% on time669 flights
10 AM–11 AM	86.8% on time912 flights	88.4% on time768 flights	88.8% on time766 flights	86.2% on time867 flights	88.6% on time910 flights	88.0% on time637 flights	85.8% on time799 flights
11 AM–12 PM	85.1% on time972 flights	88.9% on time928 flights	87.4% on time920 flights	84.7% on time963 flights	85.3% on time982 flights	86.5% on time729 flights	83.4% on time946 flights
12 PM–1 PM	79.8% on time1,327 flights	85.3% on time1,268 flights	84.5% on time1,269 flights	80.3% on time1,360 flights	78.9% on time1,338 flights	81.3% on time1,042 flights	81.3% on time1,299 flights
1 PM–2 PM	79.9% on time1,143 flights	81.8% on time1,099 flights	83.5% on time1,074 flights	79.7% on time1,171 flights	77.7% on time1,140 flights	81.1% on time961 flights	80.3% on time1,094 flights
2 PM–3 PM	79.4% on time1,323 flights	81.3% on time1,369 flights	80.6% on time1,350 flights	78.5% on time1,336 flights	76.4% on time1,305 flights	79.8% on time1,141 flights	77.1% on time1,261 flights
3 PM–4 PM	76.7% on time904 flights	82.8% on time938 flights	81.7% on time926 flights	72.6% on time896 flights	74.5% on time879 flights	81.6% on time789 flights	73.8% on time764 flights
4 PM–5 PM	76.1% on time1,515 flights	76.4% on time1,383 flights	73.8% on time1,348 flights	70.4% on time1,479 flights	70.6% on time1,524 flights	75.0% on time1,076 flights	71.9% on time1,422 flights
5 PM–6 PM	72.4% on time1,184 flights	75.7% on time956 flights	74.1% on time1,009 flights	66.9% on time1,112 flights	69.3% on time1,186 flights	76.3% on time950 flights	67.8% on time1,149 flights
6 PM–7 PM	72.8% on time1,244 flights	78.8% on time1,083 flights	76.6% on time1,098 flights	66.4% on time1,194 flights	70.0% on time1,211 flights	70.1% on time814 flights	66.2% on time1,256 flights
7 PM–8 PM	71.9% on time827 flights	71.0% on time675 flights	71.9% on time719 flights	68.1% on time800 flights	70.2% on time800 flights	73.0% on time551 flights	67.2% on time761 flights
8 PM–9 PM	67.2% on time550 flights	69.2% on time297 flights	71.2% on time293 flights	65.4% on time586 flights	68.2% on time596 flights	66.4% on time329 flights	64.0% on time735 flights
9 PM–10 PM	70.8% on time262 flights	111 flights, too few to score	80.2% on time121 flights	66.8% on time230 flights	66.5% on time242 flights	105 flights, too few to score	65.2% on time322 flights
10 PM–11 PM	77 flights, too few to score	58 flights, too few to score	53 flights, too few to score	91 flights, too few to score	106 flights, too few to score	66 flights, too few to score	69.3% on time143 flights

By departure window

All days combined

5–9 AM91.3%

9 AM–12 PM86.9%

12–3 PM80.4%

3–6 PM73.9%

6–9 PM70.1%

9 PM–5 AM71.5%

By departure hour

All days combined

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Buckets with fewer than 120 flights are not scored.

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 Main, SAT’s busiest hall, both passport queues run much the same: a typical 9 min on a US passport and 10 min on any other, rising to 19 min on a busy day. Where the two halls agree like this, CBP’s combined figure of 10 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 by terminal, across the day
Terminal	US passports	US busy day	Other passports	Other busy day	Global Entry
Main	9 min	17 min	10 min	19 min	8.1% of arrivals

US passports — Main

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

US citizens and lawful permanent residents, who use the US-passport lanes.

All other passports — Main

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Every other arriving passenger, including visa and visa-waiver travelers.

Hour by hour — Main

Hour by hour — Main
Cleared in hour	US passports	US busy day	Other passports	Other busy day	Booths open
8 AM–9 AM	9 min	19 min	12 min	23 min	6
9 AM–10 AM	8 min	17 min	11 min	20 min	6
10 AM–11 AM	7 min	14 min	10 min	19 min	6
11 AM–12 PM	9 min	16 min	11 min	18 min	6
12 PM–1 PM	10 min	17 min	11 min	18 min	6
3 PM–4 PM	9 min	18 min	10 min	19 min	5
4 PM–5 PM	9 min	17 min	10 min	17 min	5
5 PM–6 PM	11 min	19 min	12 min	20 min	6
6 PM–7 PM	9 min	18 min	10 min	19 min	6
7 PM–8 PM	9 min	17 min	9 min	18 min	7
8 PM–9 PM	9 min	18 min	9 min	19 min	6

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 SAT

How busy the airport is through the day, from scheduled departure volume.

Departures a day

113

Average across the analysis period

Busiest hour

6 AM

About 12 departures

Typical taxi-out

13.1 min

Pushback to wheels-up, on departure

Typical taxi-in

4.8 min

Touchdown to gate, on arrival

Scheduled departures by hour

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

The busiest hour is 6 AM, with about 12 departures a day, against roughly 1 at 9 PM. 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

Mon82.0%

Tue85.0%

Wed84.4%

Thu80.6%

Fri80.6%

Sat83.7%

Sun80.2%

Tuesday is historically the most reliable day and Sunday the least, a gap of 4.8 percentage points.

By month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

June is historically the weakest month and November the strongest, a spread of 11.3 percentage points.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026

Airlines at SAT

Departure performance by operating carrier. Regional flights are reported by the carrier that operated them, not by the mainline brand.

Airlines at SAT
Carrier	Departures	On time	Cancelled	Median delay
Southwest Airlines WN	49,681	82.4%	0.65%	-6 min
American Airlines AA	23,915	80.0%	1.93%	-7 min
Delta Air Lines DL	20,043	85.6%	1.04%	-9 min
United Airlines UA	17,410	85.1%	1.10%	-9 min
Spirit Airlines NK	4,890	79.8%	1.86%	-10 min
SkyWest Airlines OO	3,930	84.0%	0.99%	-8 min
Frontier Airlines F9	2,455	76.9%	2.12%	-9 min
Envoy Air MQ	2,028	74.6%	2.76%	-6 min
Alaska Airlines AS	1,782	73.7%	0.67%	-1 min
JetBlue B6	949	66.6%	2.21%	0 min

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Carriers with fewer than 500 departures are not listed.

Routes from SAT

Ranked by FlyerIntel Route Reliability Score.

Most reliable

DFWDallas–Fort Worth46

Least reliable

DFWDallas–Fort Worth46

Busiest routes

Busiest routes from SAT
Destination	Flights	On time	Score
SAT → DFW Dallas–Fort Worth	13,618	75.7%	46

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Only routes with at least 10,000 flights are ranked.

See all 2 routes to and from SAT →

Reliability over time

On-time arrival rate for departures, by month.

24

25

26

Over the most recent 12 months (2025-08 to 2026-07), departures from SAT arrived on time 81.9% of the time, against 83.2% 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 127,237 departures from SAT. A flight counts as delayed when it arrives 15 or more minutes after schedule.

Full methodology · All data sources

Analysis last recomputed September 26, 2026

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San Antonio International Airport on-time performance, from FlyerIntel

Updates on its own as new data comes in — paste this once, nothing to maintain.

<a href="https://flyerintel.com/airports/sat/"><img src="https://flyerintel.com/badge/airport/sat/" alt="San Antonio 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.

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Latest observation for SAT: METAR KSAT 180851Z 30003KT 10SM BKN250 10/04 A3037 RMK AO2 SLP271 T01000044 58008 $ (issued 08:51 UTC).