SLC Airport: 84.0% on time, worst at 7 PM

SLC 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

47°F · wind 5 kt

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

Updated 07:54 UTC

Forecast issued 05:20Z.

Updated 05:20 UTC

Aircraft seen now

On the field3

Airborne within 15 NM0

Departed in the last hour1

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 08:29 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 SLC, July 2023 – July 2026.

Airport Reliability Score

79/ 100Strong

Better than 96% of major US airports covered by FlyerIntel (64 compared)

Calculated from 355,300 flights. How this is calculated

Departures arriving on time

84.0%

295,943 of 352,189 completed

Cancellation rate

0.60%

2,130 cancelled

Median arrival delay

-8 min

Average 1.8 min

Severe delays

5.0%

Arrived 60+ minutes late

Delay when late

66 min

Average, when 15+ min late

Departures analyzed

355,300

355,118 arrivals

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.

Unlike most, it barely matters what time you fly out of this airport, a steadier spread than 90% of 302 comparable airports.

89.0% on time for 5–9 AM departures, against 78.9% for 6–9 PM, a narrow gap either way.

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 302 in the comparison.

Why flights are cancelled at SLC

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

The airline accounts for 51.1% of cancelled departures from SLC — about 1 in every 326 scheduled departures. That is 25 points higher than the 25.8% recorded across every airport FlyerIntel covers.

Share of cancellations

Airline51.1%

Weather40.9%

Air traffic7.9%

Security0.0%

Of 2,130 cancelled departures carrying a reason code.

What each reason means

The airline1 in 326

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

1,089 cancellations, 51.1% of the total.

Extreme weather1 in 408

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

871 cancellations, 40.9% of the total.

The air traffic system1 in 2,102

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

169 cancellations, 7.9% of the total.

Security1 in 355,300

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

1 cancellation, <0.1% of the total.

2,130 of 355,300 scheduled departures from SLC 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; 2,130 were recorded at SLC.

Why flights run late at SLC

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

The airline48.3%

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

Late-arriving aircraft26.6%

the inbound aircraft was late, so this flight started late

Air traffic control18.7%

airspace and airport capacity, including weather-driven flow control

Weather6.4%

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 SLC. Only delays of 15 minutes or more are attributed.

Of the 47,137 departures from SLC that left 15 or more minutes late and have a known inbound aircraft, 51% followed a flight that landed 15 or more minutes late. The other 49% 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%; SLC’s is the 6th lowest.

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

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

5.6% of scheduled departures from SLC left in an hour of bad weather. 0.6% of them were cancelled, against 0.6% in normal conditions, and 71.0% of the ones that flew arrived on time, against 84.8%. Those hours held 6% of all cancelled departures.

Cancellations were highest in snow or ice hours: 0.9% of 6,181 departures.

Airlines filed 41% of SLC’s coded cancellations under extreme weather. By the weather at the airport in the scheduled hour, 6% 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 SLC 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	324,45091.4% of all	0.6%	84.6%	84.8%	7.4 min
Any bad weatherIFR or LIFR, or a thunderstorm, snow or ice, fog, heavy rain or high wind	20,0145.6% of all	0.6%	79.0%	71.0%13.8 points below normal	14.1 min
MVFRceiling 1,000 to 3,000 feet or visibility 3 to 5 miles	12,7873.6% of all	0.4%	84.4%	81.4%3.4 points below normal	8.6 min
IFRceiling 500 to 999 feet or visibility 1 to under 3 miles	4,5371.3% of all	0.4%	79.4%	64.5%20.3 points below normal	15.1 min
LIFRceiling under 500 feet or visibility under 1 mile	3,0140.8% of all	0.6%	74.6%	57.5%27.3 points below normal	22.8 min
Thunderstorma thunderstorm reported at the airport	1,6410.5% of all	0.8%	72.9%	64.2%20.6 points below normal	19.3 min
Snow or icesnow, snow grains, ice pellets, freezing rain or freezing drizzle	6,1811.7% of all	0.9%1.5 times normal	77.7%	59.1%25.7 points below normal	17.4 min
Fogfog or freezing fog reported at the airport	1,5060.4% of all	0.7%	76.1%	60.5%24.3 points below normal	22.9 min
Heavy rainheavy rain reported at the airport	4100.1% of all	0.5%	65.9%	56.0%28.8 points below normal	23.5 min
High windwind of 25 knots or more, or gusts of 30 knots or more	9,0872.6% of all	0.6%	78.6%	76.3%8.5 points below normal	13.4 min
Low ceilinga broken or overcast layer under 1,000 feet	4,0971.2% of all	0.5%	78.3%	63.0%21.8 points below normal	18.2 min
Low visibilityvisibility under 3 miles	6,6921.9% of all	0.5%	76.3%	59.4%25.4 points below normal	19.6 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 SLC 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 SLC

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

6% of the weather-matched departures from SLC left in an hour of bad weather at the airport. 0.6% of them were cancelled. Normal hours were at 0.6%, so bad weather moved cancellations little here. No one carrier holds most of them; 6 airlines have enough to compare.

Compared with the other carriers at SLC in the same months, SkyWest Airlines (0.4% cancelled against 0.7% for the others; below them in normal hours too) cancelled the fewest in bad weather and Frontier Airlines (1.9% cancelled against 0.6% 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 SLC

Scheduled departures, July 2023 – July 2026

Cancellation rates by airline in hours of bad weather at SLC, 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
SkyWest Airlines	5,88829% of bad-weather	0.4%below the others	0.7%	0.3%others 0.7%
Delta Air Lines	9,24746% of bad-weather	0.5%	0.7%	0.6%others 0.6%
Southwest Airlines	2,11511% of bad-weather	0.6%	0.6%	0.4%others 0.6%
United Airlines	8404% of bad-weather	0.8%	0.6%	1.3%others 0.6%
American Airlines	7484% of bad-weather	1.2%above the others	0.6%	2.0%others 0.6%
Frontier Airlines	5253% of bad-weather	1.9%above the others	0.6%	1.6%others 0.6%

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 6 listed airlines flew 97% of the bad-weather departures at SLC; 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. SkyWest Airlines flies for Delta Air Lines, United Airlines, American Airlines and Alaska Airlines and is counted as a carrier of its own here, though it shares 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 SLC

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

The median turn at SLC is scheduled for 65 minutes on the ground and takes 72 minutes, against 56 minutes and 63 minutes across all airports. Aircraft are given longer 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. 12.8% 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 (36,640 turns here, 54 minutes late on average), 75% of the turns were finished in no more than the scheduled ground time, against 68% across all airports. 63% of those flights left 15 or more minutes late, against 72%. After an aircraft that landed on time, 8% did (all airports 11%).

Given the turn lengths scheduled here, the network’s rates would give 72% finished in the schedule and 67% leaving late. SLC does better on both counts: more late turns are finished in the schedule and fewer late aircraft become late departures, so the turn recovers lateness here beyond what the schedule explains.

Turns at SLC against all airports

286,272 turns, July 2023 – July 2026

Aircraft turns at SLC against all airports: scheduled and actual time on the ground and what a late inbound aircraft does
Measure	SLC	All airports	All airports, same turn lengths
Median scheduled turn	65 min	56 min	—
Median actual turn	72 min	63 min	—
Turns that began with an aircraft 15+ minutes late	13%	19%	—
Late turns finished within the schedule	75%	68%	72%
Late inbound that left 15+ minutes late	63%	72%	67%
On-time inbound that left 15+ minutes late	8%	11%	—

The last column is the network’s rate at the turn lengths scheduled at SLC, 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 SLC with its next departure from it by tail number; the aircraft is never named. These 286,272 turns are 81% of the flights that left SLC 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 SLC 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 SLC apart

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

Flights scheduled to leave SLC at 9 PM arrive on time 86.2% of the time, 15.4 points better than the 70.8% for that hour at the other airports.

June treats SLC better than it treats the rest of the country: 81.6% on time against 72.7% elsewhere, 8.9 points ahead.

SkyWest Airlines does better out of SLC than anywhere else it flies: 89.9% on time here, 79.9% on its other departures, 10 points apart.

Alaska Airlines’ departures from SLC arrive on time 74.9% of the time, 4 points worse than the 78.9% the same airline manages at its other airports.

SLC against the other airports

July 2023 – July 2026

Where SLC differs most from the other covered airports, with the flights behind each figure
Measure	SLC	Elsewhere	Gap	Flights behind it
Hour: 9 PM departures	86.2%	70.8%	+15.4 pts	20,893 here, 663,418 elsewhere
Month: June	81.6%	72.7%	+8.9 pts	29,458 here, 1,442,419 elsewhere
Airline: SkyWest Airlines	89.9%	79.9%	+10.0 pts	103,644 here, 2,289,866 elsewhere
Airline: Alaska Airlines	74.9%	78.9%	−4.0 pts	4,182 here, 796,895 elsewhere

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

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 89.0% of the time, against 78.9% for 6–9 PM departures — a gap of 10.1 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 SLC (94.2% on time, 1,226 flights) and Thursday 7–8 PM the least (67.7%, 631 flights).

Hour of departure matters more than day of the week: hourly averages sit a typical 3.8 points from the airport-wide rate, weekday averages 1.5 points.

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

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

68–71
72–75
76–79
80–83
84–87
88–91
92–95

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.

View as tableHide table

On-time arrival rate (%) with flights beneath, by scheduled departure hour and weekday at SLC. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
12 AM–1 AM	77.9% on time129 flights	115 flights, too few to score	99 flights, too few to score	105 flights, too few to score	115 flights, too few to score	77.3% on time121 flights	119 flights, too few to score
1 AM–2 AM	2 flights, too few to score	2 flights, too few to score	2 flights, too few to score	2 flights, too few to score	1 flight, too few to score	2 flights, too few to score	2 flights, too few to score
2 AM–3 AM	0 flights, too few to score	0 flights, too few to score	0 flights, too few to score	0 flights, too few to score	0 flights, too few to score	0 flights, too few to score	0 flights, too few to score
3 AM–4 AM	0 flights, too few to score	0 flights, too few to score	0 flights, too few to score	0 flights, too few to score	0 flights, too few to score	0 flights, too few to score	0 flights, too few to score
4 AM–5 AM	0 flights, too few to score	0 flights, too few to score	0 flights, too few to score	0 flights, too few to score	1 flight, too few to score	0 flights, too few to score	0 flights, too few to score
5 AM–6 AM	93.5% on time723 flights	93.0% on time534 flights	93.5% on time531 flights	93.3% on time729 flights	92.1% on time740 flights	91.9% on time661 flights	93.2% on time754 flights
6 AM–7 AM	93.6% on time1,328 flights	92.8% on time1,252 flights	94.2% on time1,226 flights	92.9% on time1,329 flights	90.8% on time1,329 flights	90.9% on time1,253 flights	90.8% on time1,308 flights
7 AM–8 AM	88.2% on time2,345 flights	89.4% on time2,329 flights	90.4% on time2,365 flights	88.0% on time2,319 flights	85.9% on time2,343 flights	87.1% on time2,210 flights	87.7% on time2,311 flights
8 AM–9 AM	88.1% on time3,367 flights	87.6% on time3,313 flights	87.9% on time3,285 flights	88.0% on time3,335 flights	87.5% on time3,358 flights	87.6% on time2,970 flights	86.8% on time3,270 flights
9 AM–10 AM	88.6% on time3,874 flights	89.1% on time3,755 flights	89.1% on time3,761 flights	87.8% on time3,873 flights	87.2% on time3,892 flights	86.5% on time3,932 flights	88.0% on time3,849 flights
10 AM–11 AM	86.4% on time2,750 flights	89.0% on time2,636 flights	88.2% on time2,646 flights	87.3% on time2,769 flights	85.3% on time2,774 flights	88.1% on time2,685 flights	85.8% on time2,784 flights
11 AM–12 PM	85.7% on time6,424 flights	88.2% on time6,284 flights	87.1% on time6,279 flights	85.6% on time6,418 flights	84.6% on time6,405 flights	84.2% on time6,219 flights	83.8% on time6,355 flights
12 PM–1 PM	83.4% on time1,263 flights	85.7% on time1,164 flights	83.8% on time1,161 flights	80.6% on time1,236 flights	80.3% on time1,255 flights	81.3% on time1,215 flights	79.1% on time1,264 flights
1 PM–2 PM	82.4% on time3,247 flights	84.8% on time3,051 flights	83.0% on time3,115 flights	80.7% on time3,274 flights	80.4% on time3,251 flights	82.9% on time2,538 flights	80.1% on time3,112 flights
2 PM–3 PM	79.4% on time2,051 flights	81.1% on time1,887 flights	78.5% on time1,874 flights	77.3% on time2,034 flights	75.9% on time2,071 flights	80.3% on time1,544 flights	77.4% on time1,986 flights
3 PM–4 PM	83.5% on time4,725 flights	87.5% on time4,578 flights	85.8% on time4,634 flights	81.5% on time4,702 flights	81.4% on time4,705 flights	84.9% on time4,524 flights	81.3% on time4,770 flights
4 PM–5 PM	77.9% on time1,991 flights	81.5% on time1,911 flights	79.2% on time1,930 flights	75.8% on time1,938 flights	76.9% on time1,976 flights	82.2% on time1,548 flights	77.6% on time1,875 flights
5 PM–6 PM	79.1% on time5,411 flights	83.4% on time5,089 flights	82.1% on time5,152 flights	78.7% on time5,313 flights	79.0% on time5,389 flights	81.3% on time4,757 flights	78.2% on time5,297 flights
6 PM–7 PM	72.2% on time1,122 flights	79.1% on time952 flights	78.9% on time980 flights	72.5% on time1,108 flights	72.5% on time1,129 flights	77.6% on time869 flights	74.1% on time1,146 flights
7 PM–8 PM	71.6% on time625 flights	77.0% on time479 flights	74.4% on time484 flights	67.7% on time631 flights	71.3% on time596 flights	74.4% on time505 flights	69.5% on time691 flights
8 PM–9 PM	81.4% on time3,003 flights	86.2% on time2,628 flights	82.6% on time2,651 flights	78.0% on time2,898 flights	80.5% on time2,972 flights	87.3% on time2,227 flights	78.8% on time2,935 flights
9 PM–10 PM	84.7% on time2,787 flights	89.0% on time2,566 flights	88.5% on time2,612 flights	84.5% on time2,771 flights	84.3% on time2,858 flights	87.9% on time4,431 flights	84.0% on time3,010 flights
10 PM–11 PM	82.7% on time2,668 flights	87.3% on time2,486 flights	85.2% on time2,510 flights	82.4% on time2,640 flights	82.0% on time2,720 flights	80.3% on time797 flights	80.1% on time2,537 flights
11 PM–12 AM	83.1% on time2,659 flights	87.0% on time2,462 flights	86.4% on time2,515 flights	81.1% on time2,650 flights	81.7% on time2,684 flights	81.8% on time1,838 flights	80.8% on time2,662 flights

By departure window

All days combined

5–9 AM89.0%

9 AM–12 PM86.6%

12–3 PM80.9%

3–6 PM81.3%

6–9 PM78.9%

9 PM–5 AM84.3%

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, SLC’s busiest hall, both passport queues run much the same: a typical 15 min on a US passport and 17 min on any other, rising to 30 min on a busy day. Where the two halls agree like this, CBP’s combined figure of 16 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	15 min	23 min	17 min	30 min	12.4% 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
12 PM–1 PM	17 min	22 min	21 min	28 min	5
1 PM–2 PM	18 min	24 min	22 min	34 min	5
2 PM–3 PM	18 min	27 min	22 min	35 min	5
3 PM–4 PM	17 min	26 min	21 min	33 min	5
4 PM–5 PM	12 min	21 min	13 min	27 min	5
5 PM–6 PM	11 min	18 min	11 min	19 min	5
6 PM–7 PM	13 min	20 min	14 min	22 min	6
7 PM–8 PM	16 min	25 min	17 min	28 min	6
8 PM–9 PM	13 min	18 min	13 min	19 min	6

US passports: clearing in the 1 PM–2 PM hour typically takes 18 min, against 11 min in the 5 PM–6 PM hour — 7 min between the slowest and fastest of 9 measured hours.

All other passports: clearing in the 1 PM–2 PM hour typically takes 22 min, against 11 min in the 5 PM–6 PM hour — 11 min between the slowest and fastest of 9 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 SLC

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

Departures a day

315

Average across the analysis period

Busiest hour

11 AM

About 39 departures

Typical taxi-out

18.1 min

Pushback to wheels-up, on departure

Typical taxi-in

7.1 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 11 AM, with about 39 departures a day, against roughly 4 at 7 PM. That peak is also more punctual than a typical hour here, despite the volume.

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

Mon83.8%

Tue86.7%

Wed85.6%

Thu82.9%

Fri82.5%

Sat84.8%

Sun82.3%

Tuesday is historically the most reliable day and Sunday the least, a gap of 4.4 percentage points.

By month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

July is historically the weakest month and October the strongest, a spread of 9.3 percentage points.

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

Airlines at SLC

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

Airlines at SLC
Carrier	Departures	On time	Cancelled	Median delay
Delta Air Lines DL	167,925	83.3%	0.58%	-8 min
SkyWest Airlines OO	104,251	89.9%	0.29%	-10 min
Southwest Airlines WN	36,318	78.9%	0.45%	-5 min
United Airlines UA	13,561	80.0%	1.22%	-8 min
American Airlines AA	12,695	78.3%	1.89%	-9 min
Frontier Airlines F9	9,259	76.6%	1.61%	-8 min
Alaska Airlines AS	4,243	74.9%	1.37%	-2 min
JetBlue B6	3,616	72.4%	1.60%	-5 min
Spirit Airlines NK	2,400	75.7%	0.96%	-7 min
Hawaiian Airlines HA	596	81.7%	0.34%	-8 min

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

Routes from SLC

Ranked by FlyerIntel Route Reliability Score.

Most reliable

LAXLos Angeles84 PHXPhoenix79 SEASeattle78 DENDenver68 LASLas Vegas67 DFWDallas–Fort Worth58 SFOSan Francisco57

Least reliable

SFOSan Francisco57 DFWDallas–Fort Worth58 LASLas Vegas67 DENDenver68 SEASeattle78 PHXPhoenix79 LAXLos Angeles84

Busiest routes

Busiest routes from SLC
Destination	Flights	On time	Score
SLC → DEN Denver	24,317	77.7%	68
SLC → PHX Phoenix	17,778	83.7%	79
SLC → LAX Los Angeles	13,286	85.0%	84
SLC → LAS Las Vegas	12,718	76.7%	67
SLC → SEA Seattle	12,345	80.7%	78
SLC → DFW Dallas–Fort Worth	12,033	77.9%	58
SLC → SFO San Francisco	10,852	71.5%	57

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

See all 14 routes to and from SLC →

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 SLC arrived on time 84.7% of the time, against 83.8% 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 355,300 departures from SLC. 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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Salt Lake City International Airport on-time performance, from FlyerIntel

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<a href="https://flyerintel.com/airports/slc/"><img src="https://flyerintel.com/badge/airport/slc/" alt="Salt Lake City 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 SLC: METAR KSLC 180754Z 15005KT 10SM FEW260 08/03 A3018 RMK AO2 SLP192 T00830033 $ (issued 07:54 UTC).