Carrier performance at one airport
OO→FAT
SkyWest Airlines at Fresno Yosemite International
- Departures
- 6,909
- Period
- September 2025 to August 2026
- Routes
- 8
- Rank here
- #3 of 6
SkyWest Airlines at Fresno lands a B+, 4 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 6,909 flights, of which United Airlines flew 738 at 85.7% on time.
Measured against the airport rather than the country, SkyWest Airlines runs half a point ahead of the 81.0% 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
81.4%
6,831 completed departures
Avg delay
74 min
Across delayed flights only
Cancelled
0.88%
At FAT, this carrier only
Rank here
#3
Of 6 carriers clearing the floor at FAT
These figures cover 6,909 flights between September 2025 and August 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 85.7% of the time; Allegiant Air manages 75.7%. Sample sizes sit next to every figure, because a two-point gap across 641 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| United Airlines | 738 | 85.7% | 68 min | 0.41% | A+ |
| Alaska Airlines | 417 | 82.8% | 57 min | 0.96% | B+ |
| SkyWest Airlines (this page) | 6,909 | 81.4% | 74 min | 0.88% | B+ |
| Southwest Airlines | 2,067 | 80.7% | 56 min | 0.24% | B+ |
| American Airlines | 2,145 | 79.9% | 90 min | 2.05% | B |
| Allegiant Air | 641 | 75.7% | 94 min | 0.62% | B+ |
United leads Allegiant by 10 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 | 1,365 | 93.3% | 84 min | 0.51% | A+ |
| FAT to SFO · San Francisco | 1,284 | 63.2% | 77 min | 1.32% | D |
| FAT to SAN · San Diego | 1,191 | 73.3% | 53 min | 1.93% | C |
| FAT to LAX · Los Angeles | 768 | 84.5% | 68 min | 0.65% | B+ |
| FAT to DEN · Denver | 746 | 91.1% | 87 min | 0.00% | A+ |
| FAT to PDX · Portland | 555 | 90.2% | 91 min | 0.72% | A+ |
| FAT to PHX · Phoenix | 535 | 83.6% | 130 min | 0.56% | B+ |
| FAT to SEA · Seattle | 465 | 82.7% | 56 min | 0.43% | B+ |
Flight by flight
SkyWest Airlines flight numbers from FAT
13 SkyWest Airlines flight numbers leaving FAT flew their main route often enough to have a record of their own. Grouped by destination.
- OO 4764to DEN 12:5591.1%
- OO 5787to DEN 09:0091.3%
- OO 5307to LAX 13:5888.4%
- OO 3487to PDX 07:3090.7%
- OO 6275to PHX 06:0086.5%
- OO 3402to SAN 06:0091.9%
- OO 3345to SEA 08:0676.0%
- OO 5338to SFO 06:3081.9%
- OO 5737to SFO 10:2149.7%
- OO 3768to SLC 12:1692.6%
- OO 3777to SLC 17:1589.5%
- OO 3786to SLC 09:4896.2%
- OO 4138to SLC 06:0095.9%
Departure window
Best time of day for this operation
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 14 points, against 10 points between the best and worst carrier.
- 5am–8am2,029 flights89.2%
- 8am–11am1,712 flights76.5%
- 11am–2pm1,069 flights85.8%
- 2pm–5pm1,043 flights75.3%
- 5pm–8pm999 flights75.6%
- 8pm–5am57 flights79.2%
Scale runs 65% to 95%.
Book the early departure. Flights leaving between 5am–8am arrive on time 89.2% of the time, against 75.3% for the afternoon window. That is 14 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 2,029 flights scheduled in it.
Across the year
Seasonal pattern
August is the worst month at 75.9% on time, 10 points below September, the best at 86.0%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. September was the busiest month here, with 712 flights.
Delay causes
What holds this operation up
- 49%Carrier
- 25%National Airspace System
- 18%Late-arriving aircraft
- 8%Extreme weather
- 0%Security
The largest share of delay minutes, 49%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 47,000 of the 94,000 delay minutes reported here. The split is drawn from 94,470 reported delay minutes.
Cancellations are rare at 0.88%, below the national 1.89% 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.
6.6% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The sample behind these figures is 6,909 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 August 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 14 points, which is the most any booking decision can do. 6,831 completed flights over 12 months sit behind that.
Common questions
SkyWest Airlines at FAT
How often is SkyWest Airlines at FAT delayed?
About one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 18.6% of the 6,909 flights in this analysis, against 22.7% 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 85.7% on time across 738 flights. Allegiant Air is at the other end on 75.7%, a gap of 10 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 89.2% on time. The 2pm–5pm window is the weakest at 75.3%, 14 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 August delays on SkyWest Airlines at FAT?
August is the weakest month at 75.9% on time, compared with 86.0% in September. Across the year that is 10 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.