Carrier performance at one airport
OO→FAT
SkyWest Airlines at Fresno Yosemite International
- Departures
- 7,413
- Period
- June 2025 to May 2026
- Routes
- 8
- Rank here
- #2 of 5
SkyWest Airlines at Fresno lands a B+, 6 points better than the national rate of 77.4%. About one flight in six arrive 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 7,413 flights, of which United Airlines flew 646 at 86.2% on time.
Measured against the airport rather than the country, SkyWest Airlines runs about a point ahead of the 82.4% weighted average across all carriers at FAT. That is the comparison worth making: every operator here works the same runways, the same airspace and the same weather.
Key figures
On time
83.2%
7,337 completed departures
Avg delay
73 min
Across delayed flights only
Cancelled
0.82%
At FAT, this carrier only
Rank here
#2
Of 5 carriers clearing the floor at FAT
These figures cover 7,413 flights between June 2025 and May 2026. The median arrival is 8 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Against the competition
Every carrier at FAT, ranked
The choice of carrier is not cosmetic here. United Airlines arrives on time 86.2% of the time; Allegiant Air manages 78.9%. Sample sizes sit next to every figure, because a two-point gap across 666 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| United Airlines | 646 | 86.2% | 57 min | 1.08% | A |
| SkyWest Airlines (this page) | 7,413 | 83.2% | 73 min | 0.82% | B+ |
| Southwest Airlines | 1,945 | 82.0% | 63 min | 0.26% | B+ |
| American Airlines | 2,176 | 79.7% | 94 min | 2.11% | B |
| Allegiant Air | 666 | 78.9% | 91 min | 0.45% | B+ |
United leads Allegiant by 7 points. Real, but small enough that a better departure time on the weaker carrier can outweigh it.
Route by route
Where SkyWest Airlines flies from FAT
SkyWest Airlines operates 8 routes out of FAT with enough volume to report. Route records inside one carrier at one airport still spread widely, because a short shuttle and a transcontinental have very different exposure to a late inbound.
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| FAT to SLC · Salt Lake City | 1,372 | 94.9% | 83 min | 0.51% | A+ |
| FAT to SFO · San Francisco | 1,306 | 69.8% | 80 min | 1.23% | C |
| FAT to SAN · San Diego | 1,265 | 77.3% | 54 min | 1.58% | B |
| FAT to LAX · Los Angeles | 874 | 86.7% | 71 min | 0.57% | A+ |
| FAT to DEN · Denver | 747 | 89.1% | 73 min | 0.00% | A+ |
| FAT to PDX · Portland | 654 | 90.4% | 74 min | 0.76% | A+ |
| FAT to SEA · Seattle | 650 | 78.5% | 51 min | 0.77% | B+ |
| FAT to PHX · Phoenix | 545 | 82.8% | 129 min | 0.55% | B+ |
Departure window
Best time of day for this operation
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 7,413 flights.
- 5am–8am1,930 flights88.6%
- 8am–11am1,923 flights79.9%
- 11am–2pm1,276 flights86.9%
- 2pm–5pm1,132 flights79.2%
- 5pm–8pm1,088 flights79.6%
- 8pm–5am64 flights80.0%
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 88.6% of the time, against 79.2% for the afternoon window. That is 9 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on.
Across the year
Seasonal pattern
Delays peak in April, when the on-time rate falls to 79.2%. August is the strongest month at 86.2%. Moving a flexible trip across that boundary buys 7 points.
Delay causes
What holds this operation up
- 49%Carrier
- 22%National Airspace System
- 20%Late-arriving aircraft
- 9%Extreme weather
- 0%Security
The largest share of delay minutes, 49%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 44,000 of the 90,000 delay minutes reported here.
Cancellations are rare at 0.82%, below the national 1.80% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
6.0% of arrivals land an hour or more late, close to the national 8.2%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route are the a little over an hour kind, which a normal layover absorbs.
The sample behind these figures is 7,413 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
Put together: take the 5am–8am departure, avoid April if the dates are flexible, and if two carriers are within a few dollars of each other, United is the one with the record behind it. None of that guarantees an on-time arrival; it moves the odds by 9 points, which is the most any booking decision can do.
Common questions
SkyWest Airlines at FAT
How often is SkyWest Airlines at FAT delayed?
About one flight in six arrive at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 16.8% of the 7,413 flights in this analysis, against 22.6% nationally. Delayed flights are late by a little over an hour on average.
Which airline is most reliable on SkyWest Airlines at FAT?
United Airlines leads at 86.2% on time across 646 flights. Allegiant Air is at the other end on 78.9%, a gap of 7 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.
What time of day has the fewest delays on SkyWest Airlines at FAT?
The 5am–8am departure window is the strongest at 88.6% on time. The 2pm–5pm window is the weakest at 79.2%, 9 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are April delays on SkyWest Airlines at FAT?
April is the weakest month at 79.2% on time, compared with 86.2% in August. Across the year that is 7 points between the best and worst months. The seasonal swing is modest enough that it should not decide when you travel.
Related
Where to go next
Source: US DOT Bureau of Transportation Statistics, on-time performance data, June 2025 to May 2026. Updated monthly. How this data is collected.