SkyWest Airlines Reliability

Reliability

July 2023 – August 2026

Airline Reliability Score

64/ 100Good

Better than 50% of US reporting carriers (15 compared)

Calculated from 2,509,069 flights. How this is calculated · What counts as on time

On-time arrivals

80.2%

1,979,547 of 2,467,802

Cancellation rate

1.33%

33,300 cancelled

Median arrival delay

-7 min

Average 8.2 min

Severe delays

8.0%

60+ minutes late

Delay when late

84 min

Average, when 15+ min late

Departure punctuality

82.1%

Left the gate on time

Among the 15 carriers FlyerIntel covers, all measured from the same source, SkyWest Airlines ranks 5th of 15 for on-time arrivals, 7th for cancellations and 9th for arrivals more than an hour late. Endeavor Air, Hawaiian Airlines, and Spirit Airlines cover a shorter window than the July 2023 – August 2026 most carriers share, so the ranks are not strictly like for like. The carriers next to it in that order are in the comparison table.

Over the most recent 12 months (2025-09 to 2026-08) SkyWest Airlines arrived on time 78.7% of the time, against 79.9% in the 12 months before (2024-09 to 2025-08): broadly unchanged.

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

Why SkyWest Airlines cancels flights

Every cancellation carries a reason code the operating carrier filed with US DOT. July 2023 – August 2026.

SkyWest Airlines cancelled 33,300 of 2,509,069 scheduled flights — about 1 in every 75. The reason it filed most often was extreme weather, 83.8% of the cancellations it coded — about 1 in every 90 scheduled flights.

Share of cancellations

Weather83.8%

Air traffic13.4%

Airline2.7%

Security0.0%

Of 33,300 cancelled departures carrying a reason code.

What each reason means

Extreme weather1 in 90

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

27,922 cancellations, 83.8% of the total.

The air traffic system1 in 561

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

4,469 cancellations, 13.4% of the total.

The airline1 in 2,772

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

905 cancellations, 2.7% of the total.

Security1 in 627,267

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

4 cancellations, <0.1% of the total.

What these shares do not measure

A reason code is the operating carrier’s own filing. US DOT collects the reason the airline gave; it does not adjudicate it, and carriers differ in how they fill the form in. The split above describes what kind of disruption SkyWest Airlines records, not who was at fault when it happened, and it cannot be set against another airline’s split to decide which of the two is better run.

That is measurable rather than a disclaimer. Across the 15 carriers FlyerIntel publishes, the correlation between how much of its own canceling a carrier attributes to itself and how often it actually cancels is -0.45 — negative, which is the wrong sign for a ranking of fault and about the right sign for a difference in filing convention. Hawaiian Airlines attributed 82.8% of its cancellations to itself and cancelled 1.00% of its flights; SkyWest Airlines attributed 2.7% and cancelled 1.33%. The airline taking the most blame is the one that cancels least.

The figure on this page that does compare cleanly between airlines is the cancellation rate in Reliability, because it counts cancellations instead of reading the reason filed for them. The First Flight of the Day sets out the same finding from the airport-carrier records, and declines on the strength of it to compare any two carriers’ codes.

Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.

By airport

SkyWest Airlines cancellation causes by airport
Airport	Cancelled	Rate	Airline	Weather	Air traffic	Security
ORD Chicago	5,197	2.57%	1%	86%	12%	0%
DEN Denver	2,604	1.25%	1%	85%	15%	0%
DFW Dallas–Fort Worth	2,117	2.64%	1%	97%	2%	0%
SFO San Francisco	1,037	1.00%	4%	61%	35%	0%
DTW Detroit	978	1.18%	2%	89%	9%	0%
MSP Minneapolis	732	0.90%	2%	88%	10%	0%
IAH Houston	722	1.69%	2%	92%	6%	0%
SAN San Diego	515	1.21%	13%	49%	38%	<1%
LAX Los Angeles	505	0.41%	5%	68%	27%	0%

Shares are of SkyWest Airlines’s own coded cancellations at each airport and run across the row, so they total 100%. “Rate” is cancellations as a share of its scheduled departures there. Reading down a column compares one airline with itself in different weather and different airspace, which is the comparison these codes support — a carrier files the same way wherever it flies, so its filing habits largely cancel out of the differences between these rows in a way they never cancel out of a comparison between two airlines. Airports where SkyWest Airlines recorded fewer coded cancellations than the published minimum are not listed.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – August 2026 · These are the reason codes SkyWest Airlines itself filed with US DOT: the reason the airline gave, not an independent finding of fault, and airlines differ in how they apply them. FlyerIntel publishes the split only for carriers with at least 500 coded cancellations in the period; 33,300 were recorded. Whatever the reason code, a cancelled flight may qualify for an automatic refund under DOT’s rule, and the refund checker covers eligibility.

Reliability over time

24

25

26

Each column is one month of SkyWest Airlines operations. The strongest single month of the period was November 2023 at 86.7% on time; the weakest was December 2025 at 72.9%. Individual months move for reasons that do not repeat (a hurricane season, a technology outage, a winter storm), which is why the section below combines the same data by calendar month instead.

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

Best and worst months to fly

Every SkyWest Airlines January stacked on every other January, and so on through the year.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

SkyWest Airlines — best and worst months to fly
Month	Flights	On time	Cancelled
January	188,018	77.4%	3.15%
February	175,204	79.1%	1.42%
March	200,149	80.2%	2.23%
April	202,103	81.9%	1.19%
May	211,063	80.3%	1.01%
June	209,186	76.7%	1.03%
July	274,150	77.8%	1.33%
August	273,059	79.4%	0.83%
September	193,284	84.6%	0.32%
October	200,859	84.6%	0.28%
November	190,583	83.4%	2.10%
December	191,411	78.4%	1.38%

Combining 3 to 4 years of operations by calendar month, SkyWest Airlines is at its best in October, when 84.6% of arrivals were on time, and at its worst in June at 76.7%, a spread of 8.0 percentage points between two months of the same airline. Cancellations peak in a month of their own: January at 3.15% of flights, against 0.28% in October.

This is the shape of the calendar, not a forecast. It says that if you book SkyWest Airlines in June you are booking into the part of the year when this airline has historically been least punctual, and that an October itinerary starts from a better position. It does not say anything about a particular date, and it cannot: the figure behind each month is 3 to 4 years of that same month combined, precisely so that one storm does not decide the answer.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026 · Rates are recalculated from the summed monthly counts, so a heavy month carries more weight than a light one.

Best time to fly SkyWest Airlines

How SkyWest Airlines departures have done at each hour of each weekday, across its whole network.

By day and hour

On-time arrival rate for each weekday and scheduled departure hour, in local time at the airport each flight leaves from, so the grid mixes time zones across the network.

Wednesday 5–6 AM was the most reliable slot for SkyWest Airlines (90.0% on time, 9,344 flights) and Sunday 7–8 PM the least (71.2%, 19,542 flights).

Hour of departure matters more than day of the week: hourly averages sit a typical 4.1 points from the network-wide rate, weekday averages 1.7 points.

On-time arrival rate for SkyWest Airlines 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
11 PM–12 AM

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

68–71
72–75
76–79
80–83
84–87
88–91

Most reliable slot
Least reliable slot

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 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 (43 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 for SkyWest Airlines. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
5 AM–6 AM	88.0% on time9,817 flights	89.3% on time9,362 flights	90.0% on time9,344 flights	89.4% on time9,649 flights	88.3% on time9,713 flights	87.9% on time9,294 flights	88.0% on time9,636 flights
6 AM–7 AM	87.7% on time21,040 flights	89.0% on time20,424 flights	89.8% on time20,417 flights	89.1% on time20,773 flights	87.6% on time20,925 flights	87.8% on time20,431 flights	87.9% on time20,567 flights
7 AM–8 AM	83.9% on time23,100 flights	86.3% on time21,747 flights	86.7% on time21,994 flights	85.4% on time22,777 flights	83.9% on time22,891 flights	85.2% on time21,349 flights	84.4% on time22,842 flights
8 AM–9 AM	82.4% on time24,391 flights	84.4% on time22,834 flights	84.9% on time23,351 flights	83.6% on time24,048 flights	82.0% on time24,223 flights	83.0% on time23,478 flights	82.4% on time24,281 flights
9 AM–10 AM	81.9% on time21,621 flights	85.3% on time20,368 flights	85.1% on time20,606 flights	83.3% on time21,411 flights	81.1% on time21,442 flights	82.1% on time20,131 flights	82.0% on time21,262 flights
10 AM–11 AM	81.0% on time26,055 flights	83.9% on time24,681 flights	83.5% on time24,995 flights	82.2% on time25,707 flights	80.0% on time25,955 flights	82.5% on time24,922 flights	80.0% on time25,820 flights
11 AM–12 PM	80.7% on time24,046 flights	83.9% on time22,654 flights	83.9% on time23,304 flights	82.1% on time23,754 flights	80.2% on time23,940 flights	81.9% on time22,414 flights	80.1% on time23,873 flights
12 PM–1 PM	79.4% on time23,546 flights	83.5% on time22,101 flights	82.0% on time22,509 flights	80.7% on time23,250 flights	78.4% on time23,400 flights	81.4% on time21,717 flights	78.9% on time23,491 flights
1 PM–2 PM	79.6% on time24,942 flights	83.4% on time23,412 flights	82.5% on time23,918 flights	80.1% on time24,541 flights	79.2% on time24,738 flights	81.7% on time23,648 flights	78.4% on time24,719 flights
2 PM–3 PM	76.4% on time22,696 flights	80.5% on time21,129 flights	80.2% on time21,753 flights	77.8% on time22,353 flights	75.7% on time22,566 flights	80.1% on time20,673 flights	75.4% on time22,589 flights
3 PM–4 PM	77.3% on time24,062 flights	81.4% on time22,241 flights	79.9% on time22,827 flights	77.3% on time23,515 flights	76.6% on time23,842 flights	79.7% on time21,438 flights	75.7% on time23,649 flights
4 PM–5 PM	75.0% on time22,954 flights	79.8% on time20,824 flights	78.2% on time21,725 flights	75.2% on time22,548 flights	74.4% on time22,805 flights	78.9% on time20,609 flights	73.1% on time22,887 flights
5 PM–6 PM	73.6% on time27,659 flights	76.9% on time25,674 flights	75.8% on time26,167 flights	73.0% on time27,064 flights	72.7% on time27,365 flights	76.4% on time23,376 flights	71.9% on time27,361 flights
6 PM–7 PM	74.2% on time22,524 flights	78.6% on time19,603 flights	77.1% on time20,725 flights	73.5% on time22,218 flights	72.6% on time22,475 flights	77.7% on time18,579 flights	72.3% on time22,452 flights
7 PM–8 PM	73.1% on time19,473 flights	79.0% on time17,328 flights	77.2% on time17,994 flights	72.7% on time19,207 flights	72.4% on time19,329 flights	77.4% on time15,799 flights	71.2% on time19,542 flights
8 PM–9 PM	76.5% on time15,013 flights	81.8% on time13,462 flights	79.8% on time14,015 flights	75.1% on time14,890 flights	74.6% on time14,959 flights	80.7% on time12,828 flights	74.1% on time15,412 flights
9 PM–10 PM	79.3% on time13,027 flights	83.5% on time11,819 flights	82.2% on time12,200 flights	78.6% on time12,783 flights	77.7% on time12,935 flights	83.1% on time11,945 flights	77.0% on time13,079 flights
10 PM–11 PM	79.7% on time4,772 flights	86.7% on time4,131 flights	83.5% on time4,333 flights	79.3% on time4,940 flights	78.6% on time4,775 flights	83.4% on time3,203 flights	75.9% on time4,941 flights
11 PM–12 AM	85.5% on time662 flights	87.5% on time545 flights	88.1% on time610 flights	88.4% on time671 flights	83.6% on time653 flights	85.1% on time473 flights	80.1% on time760 flights

Why SkyWest Airlines runs late

Share of total reported delay minutes by cause, as classified by the operating carrier.

The airline48.3%

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

Late-arriving aircraft21.0%

the inbound aircraft was late, so this flight started late

Air traffic control16.3%

airspace and airport capacity, including weather-driven flow control

Weather14.3%

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 SkyWest Airlines. Only delays of 15 minutes or more are attributed. What the five causes mean

The largest single category for SkyWest Airlines is the airline itself, at 48.3% of attributed minutes. That is the one category squarely inside the carrier’s own control (crew, maintenance, boarding, fueling), and across the 15 carriers covered here it accounts for 33.8% of attributed minutes. That is 14.5 percentage points more of its delay minutes falling inside the airline than is typical for this group.

These shares describe how delay minutes were divided, not how often delays happened. A carrier with an unusually large air-traffic-control share is not necessarily worse run; it may simply fly more of its schedule through congested airspace. The one category that is squarely the airline’s own is the carrier category, which is why it is the one compared above.

Source: US DOT BTS delay cause categories · July 2023 – August 2026 · Cause minutes are only reported for arrivals delayed 15 minutes or more.

How SkyWest Airlines handles bad weather

Departures by the weather at the origin in the hour they were scheduled to leave, July 2023 – August 2026.

8% of SkyWest Airlines’ weather-matched departures left in an hour of bad weather at the origin. 5.3% of them were cancelled, 6.9 times the 0.8% cancelled in normal hours, and 62.2% of those that flew arrived on time, against 82.1%. Those hours held 37% of the airline’s cancelled departures.

In bad weather SkyWest Airlines cancelled more than other carriers did: of the 128,742 bad-weather departures that could be compared, 5.4% were cancelled, against 3.1% for the other carriers at the same airports in the same months. In normal hours SkyWest Airlines was level with them (0.8% against 1.0%), so the difference is a bad-weather one. Its flights that operated arrived on time 61.8% of the time, 4.0 points below the others’ 65.8%.

Bad-weather hours against normal hours

Scheduled departures, July 2023 – August 2026

SkyWest Airlines cancellation and on-time rates in bad-weather and normal hours at the origin, with the other carriers at the same airports and months
Weather at the origin	Departures	Cancelled	Arrived on time
Normal hours	1,309,385	0.8%	82.1%
Other carriers	1,309,385compared	1.0%	79.5%
Bad-weather hours	132,6038% of all matched	5.3%6.9 times normal	62.2%19.9 points below normal
Other carriers	128,742compared	3.1%	65.8%

Bad weather means IFR or LIFR conditions, or a storm, snow, ice, fog, heavy rain or high wind, at the origin; normal means VFR with none of those. Marginal hours are in neither row, and were 10% of SkyWest Airlines’ matched departures. Cancelled is the share of scheduled departures. The other carriers’ rows apply their rate in each airport and month to the departures SkyWest Airlines had there.

The most exposed airports were DFW (15.0% of 5,934), ORD (10.8% of 21,491), LGA (9.0% of 954); the least, SLC (0.4% of 5,988), SJC (0.7% of 613), LAX (1.0% of 11,247). The widest gap above the other carriers was at DFW, Dallas–Fort Worth: 15.0% cancelled against 9.9%. The widest below them was at SLC, Salt Lake City: 0.4% cancelled against 0.7%.

Most exposed airports

Most exposed airports: SkyWest Airlines departures in bad weather by airport
Airport	Departures	Cancelled	Other carriers	Normal hours
DFW Dallas–Fort Worth	5,934	15.0%	9.9%	1.4%
ORD Chicago	21,491	10.8%	5.8%	1.5%
LGA New York	954	9.0%	6.7%	2.1%

Least exposed airports

Least exposed airports: SkyWest Airlines departures in bad weather by airport
Airport	Departures	Cancelled	Other carriers	Normal hours
SLC Salt Lake City	5,988	0.4%	0.7%	0.3%
SJC San Jose	613	0.7%	—	0.2%
LAX Los Angeles	11,247	1.0%	1.0%	0.3%

Airports are listed with at least 500 of SkyWest Airlines’ bad-weather departures and 500 weather-matched departures in all. Other carriers is their cancellation rate in the same airport and months, applied to SkyWest Airlines’ departures there, and is left blank where SkyWest Airlines was nearly the only carrier flying in the bad-weather hours of most months and there is no one to compare with.

This is the weather reported at the origin in the hour a flight was scheduled to leave, July 2023 – August 2026. It leaves out the weather at the destination and on the way, and an hour takes the worst conditions any report in it gave. Weather was matched to 63.6% of SkyWest Airlines’ scheduled departures: the rest left from airports with no archived weather, in hours with no report, or at a scheduled time the flight records cannot place exactly. The comparison covers 1,346 airport-months in which SkyWest Airlines flew in bad weather; the other carriers are held to the same airport and calendar month, not the same hour of the day or the same aircraft, so a carrier that schedules more of those departures at the busiest or the quietest times is not fully adjusted for. 3,861 of its bad-weather departures were in an airport and month where the other carriers had fewer than 120 of their own, and are not in that comparison.

Source: FlyerIntel analysis of US DOT BTS flight records and Iowa Environmental Mesonet weather reports · July 2023 – August 2026 · Where the weather comes from, and its limits. All covered airports side by side: What Weather Costs Each Airport.

Turning aircraft around at SkyWest Airlines

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

The median SkyWest Airlines turn is scheduled for 48 minutes on the ground and takes 54 minutes, against 56 minutes and 63 minutes across all airlines. SkyWest Airlines schedules its aircraft a shorter time on the ground than the network does.

When the aircraft landed 15 or more minutes late (344,390 turns, 66 minutes late on average), 84% of the turns were finished in no more than the scheduled ground time, against 68% across all airlines. 64% of those flights left 15 or more minutes late, against 72%. After an aircraft that landed on time, 7% did (network 11%).

Given the turn lengths it schedules, the network’s rates would give 64% finished in the schedule and 75% leaving late. By that measure SkyWest Airlines finished more late turns in the schedule and passed lateness on less often than the network would have. 36% of its late-inbound turns had a scheduled turn of 30 to 44 minutes, against 20% of the network’s.

Turns, SkyWest Airlines against the network

1,904,842 turns, July 2023 – August 2026

SkyWest Airlines aircraft turns against all airlines: scheduled and actual time on the ground and what a late inbound aircraft does
Measure	SkyWest Airlines	All airlines	All airlines, same turn lengths
Median scheduled turn	48 min	56 min	—
Median actual turn	54 min	63 min	—
Turns that began with an aircraft 15+ minutes late	18%	19%	—
Late turns finished within the schedule	84%	68%	64%
Late inbound that left 15+ minutes late	64%	72%	75%
On-time inbound that left 15+ minutes late	7%	11%	—

Late means 15 or more minutes. A turn finishes within the schedule when the aircraft spent no more time on the ground than the schedule gave it. The last column applies the network’s rate in each scheduled-turn band (under 30 minutes up to 3 to 6 hours) to the number of SkyWest Airlines turns in that band, so it shows what the same turn lengths would give across all airlines.

A turn pairs an aircraft’s landing with its next departure by tail number; the aircraft is never named. These 1,904,842 turns are 76% of SkyWest Airlines’ flights 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 is measured from the gate: the scheduled turn plus the departing flight’s delay minus the inbound’s arrival delay. Overnight stays (6 hours or more on the ground), cancelled flights and flights whose inbound diverted are not turns here. Turns scheduled under 30 minutes are a small share and are kept, but they are rarely a plan for that aircraft (more often a swap or recovery, with the flight waiting for an aircraft that was not the one scheduled), so most of them across the network leave late even after an on-time landing. A flight that an airline covered with a different aircraft is linked to the one that flew it, not the one first planned.

Source: FlyerIntel analysis of US DOT BTS flight records · July 2023 – August 2026 · All airlines side by side: How Fast an Aircraft Turns When It Has To.

What sets SkyWest Airlines apart

Where SkyWest Airlines differs most from the other covered airlines, July 2023 – August 2026.

SkyWest Airlines flights scheduled to leave at 9 PM arrive on time 80.1% of the time, 10.1 points better than the 70.0% the other covered airlines manage at that hour.

8 AM is where SkyWest Airlines falls furthest behind the other airlines: 83.2% of its 8 AM departures arrive on time, 3.1 points below the 86.3% for that hour elsewhere.

July suits SkyWest Airlines more than it suits the other airlines: 77.8% on time against 70.3%, 7.5 points ahead.

SkyWest Airlines’ weakest month against the field is February, 79.1% on time to 81.5% for the other airlines, 2.4 points short.

SLC is where SkyWest Airlines stands out most against local competition: 89.8% of its departures arrive on time, 8.4 points above the 81.4% of the other airlines out of the same airport.

Out of ABE, SkyWest Airlines arrives on time 73.8% of the time, 9.5 points below the 83.3% the other airlines there manage.

SkyWest Airlines aircraft spend 21.1 minutes on average between pushback and takeoff, 3.2 minutes more than the 17.9 minutes for the other covered airlines.

SkyWest Airlines against the other airlines

July 2023 – August 2026

Where SkyWest Airlines differs most from the other covered airlines, with the flights behind each figure
Measure	SkyWest Airlines	Elsewhere	Gap	Flights behind it
Hour: 9 PM departures	80.1%	70.0%	+10.1 pts	85,675 here, 648,170 elsewhere
Hour: 8 AM departures	83.2%	86.3%	−3.1 pts	164,427 here, 1,337,868 elsewhere
Month: July	77.8%	70.3%	+7.5 pts	269,475 here, 2,154,365 elsewhere
Month: February	79.1%	81.5%	−2.4 pts	172,103 here, 1,342,035 elsewhere
Airport: SLC	89.8%	81.4%	+8.4 pts	106,803 here, 255,353 elsewhere
Airport: ABE	73.8%	83.3%	−9.5 pts	993 here, 10,876 elsewhere
Taxi-out: Departures	21.1 min	17.9 min	+3.2 min	2,476,485 here, 19,514,220 elsewhere

“Elsewhere” is every other covered airline together, from the same aggregates as this page. Hours and months appear only where both sides have at least 120 completed flights; airports only where SkyWest Airlines and everyone else there each have at least 500. Gaps must be at least 2 points and 2 standard errors, and only the largest in each direction is shown. Airlines fly different airports, so the hour and month rows partly compare different traffic; the airport rows compare like with like. The taxi figure is weighted by departures, mixes airports, and has no error estimate, so it appears from 2 minutes.

Where this airline flies

Departure performance at the airports FlyerIntel covers.

Airports served

292

56 of them covered in detail here

Departures from its largest base

8.3%

DEN · Denver

Departures from its top three

21.4%

DEN, ORD, LAX

SkyWest Airlines departed from 292 airports in this period, with no single one accounting for more than 8.3% of departures and the largest three together 21.4%. Performance is spread across the network rather than resting on one or two hubs, so a single weak airport moves this carrier’s overall figure less than it would at a hub-and-spoke airline.

Where this airline flies
Airport	Departures	On time	Cancelled	Median delay
DEN Denver	208,992	78.9%	1.25%	-7 min
ORD Chicago	202,412	70.8%	2.57%	-2 min
LAX Los Angeles	124,370	85.3%	0.41%	-8 min
SLC Salt Lake City	107,415	89.8%	0.28%	-9 min
SFO San Francisco	103,429	78.4%	1.00%	-5 min
SEA Seattle	87,342	84.4%	0.49%	-6 min
PHX Phoenix	82,957	83.6%	0.45%	-7 min
DTW Detroit	82,552	77.4%	1.18%	-6 min
MSP Minneapolis	81,396	82.3%	0.90%	-8 min
DFW Dallas–Fort Worth	80,287	78.9%	2.64%	-7 min
IAH Houston	42,728	77.2%	1.69%	-5 min
SAN San Diego	42,572	76.9%	1.21%	-4 min

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026 · Airports where this carrier flew fewer than 500 departures are not listed.

Route performance

SkyWest Airlines’ own on-time rate on each route, counting this carrier's flights only; the route's rate across every airline that flies it can differ.

Most reliable routes

SJC→LAXSan Jose to Los Angeles90.4%SMF→LAXSacramento to Los Angeles90.0%PHX→LAXPhoenix to Los Angeles89.9%SLC→LAXSalt Lake City to Los Angeles89.5%LAX→SJCLos Angeles to San Jose89.4%LAX→SLCLos Angeles to Salt Lake City89.0%SJC→SEASan Jose to Seattle88.7%MCI→DENKansas City to Denver88.7%

Least reliable routes

AUS→DFWAustin to Dallas–Fort Worth63.2%SAN→SFOSan Diego to San Francisco66.7%ORD→CLEChicago to Cleveland67.4%CLE→ORDCleveland to Chicago68.4%LAS→SANLas Vegas to San Diego68.9%SFO→SANSan Francisco to San Diego69.0%ORD→MSPChicago to Minneapolis70.2%MSP→ORDMinneapolis to Chicago70.4%

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026 · Routes with fewer than 600 flights by this carrier are not ranked.

Where SkyWest Airlines flies best and worst

The airports and routes where SkyWest Airlines is on time most and least often, set beside the other airlines at the same place.

SkyWest Airlines arrives on time 89.8% of the time at SLC, 8.4 points better than the 81.4% for the other airlines there.

SkyWest Airlines arrives on time 88.8% of the time at OAK, 7.3 points better than the 81.5% for the other airlines there.

SkyWest Airlines arrives on time 88.3% of the time at ABQ, 6.4 points better than the 81.9% for the other airlines there.

SkyWest Airlines manages 70.8% at ORD, 4.2 points below the 75.0% for the other airlines there.

SkyWest Airlines manages 72.6% at STL, 6.4 points below the 79.0% for the other airlines there.

SkyWest Airlines is on time 73.5% of the time at CLT, near the bottom of its own list, but the other airlines there manage about the same at 74.6%: the airport is hard for everyone.

SkyWest Airlines arrives on time 90.4% of the time on SJC to LAX, 8.5 points better than the 81.9% for the other airlines on it.

SkyWest Airlines arrives on time 90.0% of the time on SMF to LAX, 8.7 points better than the 81.3% for the other airlines on it.

SkyWest Airlines arrives on time 89.9% of the time on PHX to LAX, 9.9 points better than the 80.0% for the other airlines on it.

SkyWest Airlines manages 63.2% on AUS to DFW, 12.7 points below the 75.9% for the other airlines on it.

SkyWest Airlines is on time 66.7% of the time on SAN to SFO, near the bottom of its own list, but the other airlines on it manage about the same at 65.4%: the route is hard for everyone.

SkyWest Airlines manages 67.4% on ORD to CLE, 7.7 points below the 75.1% for the other airlines on it.

Airports, best and worst

Airports, best and worst: SkyWest Airlines on-time rate beside the other airlines, with the flights behind each figure
Place	SkyWest Airlines	Other airlines	Flights behind it
SLC	89.8%	81.4%	106,803 here, 255,353 others
OAK	88.8%	81.5%	4,615 here, 114,352 others
ABQ	88.3%	81.9%	14,745 here, 62,522 others
ORD	70.8%	75.0%	196,387 here, 768,383 others
STL	72.6%	79.0%	3,994 here, 196,983 others
CLT	73.5%	74.6%	2,308 here, 618,982 others

Routes, best and worst

Routes, best and worst: SkyWest Airlines on-time rate beside the other airlines, with the flights behind each figure
Place	SkyWest Airlines	Other airlines	Flights behind it
SJC to LAX	90.4%	81.9%	8,699 here, 7,234 others
SMF to LAX	90.0%	81.3%	10,814 here, 6,283 others
PHX to LAX	89.9%	80.0%	7,011 here, 15,986 others
AUS to DFW	63.2%	75.9%	612 here, 14,273 others
SAN to SFO	66.7%	65.4%	5,837 here, 14,588 others
ORD to CLE	67.4%	75.1%	1,442 here, 10,492 others

July 2023 – August 2026. Airports need at least 2,000 completed flights by SkyWest Airlines, routes 600. The other airlines are everyone else at the same airport or on the same route, compared only where they have at least 500 (airports) or 200 (routes) completed flights; a gap counts as ahead or behind only at 2 points and 2 standard errors. Route figures are for one direction. Airlines fly different times of day and aircraft, so a gap is a comparison, not a cause.

Most and least reliable flights

Individual SkyWest Airlines flight numbers, ranked on the route each one flies today.

Most reliable

OO3745TUS→SLC · 6:00 AM97.7%OO3743SAN→LAX · 6:15 AM95.2%OO4057PHX→LAX · 6:20 AM95.1%OO3718SLC→TUS · 9:25 AM94.8%OO4134OAK→SLC · 12:30 PM94.5%OO4115ABQ→LAX · 6:00 AM94.5%OO3681BUR→SLC · 7:05 AM94.3%OO3755LAX→SMF · 8:30 AM94.2%

Least reliable

OO5648MKE→ORD · 5:46 PM58.7%OO5555ORD→MKE · 5:50 PM62.5%OO5248SMF→SFO · 10:05 AM65.6%OO5762DEN→SLC · 5:30 PM71.0%OO3741LAS→SAN · 5:45 PM71.0%OO3715DTW→OMA · 7:45 PM71.3%OO3439SAN→SMF · 11:00 AM71.7%OO4163AUS→BNA · 7:30 PM71.7%

81 SkyWest Airlines flight numbers have operated their current route at least 600 times. The strongest of them, OO3745 from Tucson to Salt Lake City, arrived on time 97.7% of the time. The weakest, OO5648 from Milwaukee to Chicago, managed 58.7%, a gap of 39 percentage points inside one airline. The departures in the first column are scheduled to leave at a median of 7:05 AM; those in the second at 5:46 PM.

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026 · A flight number is a slot in a schedule and gets reassigned to different city pairs over time, so each is measured only on the route it currently operates. Numbers with fewer than 600 operations on that route, or last flown more than a quarter ago, are not ranked. Schedules change, so confirm a departure still operates before booking around it.

See all 81 SkyWest Airlines flight numbers →

Compare airlines

SkyWest Airlines arrives on time 80.2% of the time. Delta Air Lines (82.0%) is just ahead of it on that measure and Envoy Air (80.1%) just behind.

Compare airlines
Airline	Score	On time	Cancelled	60+ min late	Flights
Hawaiian Airlines	80	83.7%	1.00%	2.9%	199,679
Republic Airways	60	82.1%	3.36%	6.9%	1,035,523
Delta Air Lines	71	82.0%	1.16%	6.4%	3,237,688
SkyWest Airlines	64	80.2%	1.33%	8.0%	2,509,069
Envoy Air	66	80.1%	1.78%	6.7%	916,078
United Airlines	66	79.5%	1.21%	7.7%	2,493,057
Alaska Airlines	71	78.7%	1.29%	5.0%	845,117

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – August 2026 · The 7 carriers nearest SkyWest Airlines by on-time rate, out of 15. Score is the FlyerIntel Airline Reliability Score. Endeavor Air, Hawaiian Airlines, and Spirit Airlines cover a shorter window than the July 2023 – August 2026 most carriers share, so the ranks are not strictly like for like. See all airlines ranked →

Data and methodology

Calculated by FlyerIntel from 2,509,069 SkyWest Airlines flight records published by the US DOT Bureau of Transportation Statistics, covering July 2023 – August 2026. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately, because folding them in would flatter a carrier that cancels rather than runs late. Figures below a published sample threshold are omitted rather than shown with a caveat.

How on-time performance is counted

Full methodology · Data sources · Report a problem

Analysis last recomputed October 26, 2026

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SkyWest Airlines on-time performance, from FlyerIntel

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