Carrier route record
OOSEA→FAT
SkyWest Airlines · Seattle to Fresno
- Flights
- 465
- Period
- September 2025 to August 2026
- Share of route
- 53%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on SEA to FAT lands a B+, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 465 flights, with a median arrival 7 minutes early.
Set against the rest of the country, SkyWest's SEA to FAT record is 6 points better than the US average of 77.3%. That gap is worth roughly 62 fewer late arrivals for every thousand flights.
Key figures
On time
83.5%
Arrivals under 15 minutes late, of 461 completed flights
Avg delay
61 min
Across delayed arrivals only, not all flights
Cancelled
0.86%
National rate is 1.89%
Whole route
82.3%
Every carrier on SEA to FAT, 882 flights
These figures cover 465 flights between September 2025 and August 2026. The median arrival is 7 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
SkyWest against every carrier on SEA to FAT
SkyWest flew 465 of the 882 flights on SEA to FAT, most of the route. Its 83.5% on time is about level with the route as a whole at 82.3%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from SkyWest at 83.5% to Alaska at 80.9%.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines (this page) | 465 | 83.5% | 61 min | 0.86% | B+ |
| Alaska Airlines | 417 | 80.9% | 49 min | 0.72% | B+ |
Flight by flight
SkyWest flight numbers on SEA to FAT
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When SkyWest runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 12 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am45 flights91.1%
- 11am–2pm33 flights78.8%
- 2pm–5pm1 flights—
- 5pm–8pm36 flights83.3%
- 8pm–5am350 flights82.9%
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
The weak window here is the middle of the day, not the evening: 11am–2pm runs 78.8% on time against 91.1% for 8am–11am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 8pm–5am window is the busiest, with 350 flights scheduled in it.
Across the year
SkyWest on SEA to FAT through the year
August is the worst month at 64.5% on time, 29 points below April, the best at 93.3%. 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 90 flights.
Across the week, Wednesday is the strongest day at 87.7% on time and Sunday the weakest at 80.3%, a spread of 7 points.
Arrival by arrival
How late SkyWest on SEA to FAT runs when it is late
SkyWest on SEA to FAT often beats the schedule: 136 of 461 completed flights, 30%, arrived 15 minutes or more early. The 76 late arrivals split 29 under half an hour, 24 between 30 and 60 minutes, and 23 an hour or more.
- 15+ min early136 flights29.5%
- Within 15 min249 flights54.0%
- 15–29 min late29 flights6.3%
- 30–59 min late24 flights5.2%
- 1–2 hours late11 flights2.4%
- 2+ hours late12 flights2.6%
Scale runs 0% to 100%.
Share of 461 completed flights by arrival against schedule.
11 of 75 late departures made up the time and arrived on time, 15% of them. 12 flights left on time and still arrived late.
The worst days
Worst days for SkyWest on SEA to FAT
The latest arrival of the period was on 28 July 2026, 3 hours 35 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 28 July 2026 | 3 hours 35 minutes | Late-arriving aircraft |
| 7 August 2026 | 3 hours 28 minutes | Late-arriving aircraft |
| 11 September 2025 | 3 hours 7 minutes | National Airspace System |
| 15 March 2026 | 3 hours 3 minutes | Late-arriving aircraft |
| 31 December 2025 | 3 hours 2 minutes | Extreme weather |
Delay causes
Why SkyWest runs late on this route
Late-arriving aircraft accounts for 46% of the 4,621 delay minutes carriers reported here, and the remaining four split what is left.
- 46%Late-arriving aircraft
- 22%Carrier
- 21%National Airspace System
- 11%Extreme weather
Extreme weather accounts for 11% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 1.9 times the usual weather exposure. The split is drawn from 4,621 reported delay minutes.
46% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,621 reported delay minutes here, that single category outweighs weather by 4 to one.
Cancellations are rare at 0.86%, 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.
Connections and stage length
What a delay here costs
5.0% 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 about an hour, which a normal layover absorbs.
The 748 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg runs 82.7% on time across 465 flights, within about a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 465 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking SkyWest on SEA to FAT
Put together: treat all of this as provisional. 465 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 83.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 461 completed flights over 12 months sit behind that.
Related
Where to go next
- SEA to FAT, every carrier
- SkyWest on FAT to SEA, the return leg
- Alaska Airlines on SEA to FAT80.9%
- SkyWest Airlines network-wide record
- Seattle-Tacoma International (SEA) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
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.