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Route · SEA → FAT · 2020–2025 BTS data

Seattle to Fresno

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SEA to FAT (Seattle to Fresno) ranks #2331 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

84.1%
On-time
+5.1 pts
vs US avg
54 min
Delay when late
5,393
Flights
#2331 of 4927
Corpus placement

Cancelled

0.8%

Best Month

Jul 2024 89%

Worst Month

Dec 2024 72%

Distance

748 mi

Carriers

9

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 62 16 0 0 AS,OO
Nov 2025 59 7 0 0 OO,AS
Oct 2025 101 12 2 0 AS,OO
Sep 2025 107 14 0 0 OO,AS
Aug 2025 118 23 1 0 OO,AS
Jul 2025 123 26 1 0 AS,OO
Jun 2025 120 29 2 0 AS,OO
May 2025 110 20 0 0 AS,OO
Apr 2025 69 11 0 1 OO,AS
Mar 2025 44 12 0 0 AS,OO
Feb 2025 38 11 0 0 AS,OO
Jan 2025 62 10 0 0 AS,OO
Dec 2024 75 21 0 0 AS,OO
Nov 2024 87 16 1 0 OO,AS
Oct 2024 89 17 0 0 AS,OO
Sep 2024 90 16 1 0 OO,AS
Aug 2024 74 20 1 0 AS,OO
Jul 2024 61 7 0 0 AS,OO
Jun 2024 72 12 0 0 AS,OO
May 2024 86 11 0 0 AS,OO
Apr 2024 67 12 0 0 AS,OO
Mar 2024 62 11 0 0 AS,OO
Feb 2024 53 9 0 0 AS,OO
Jan 2024 48 7 6 0 AS,OO

SEA–FAT seasonal on-time pattern

Best: April (87.6%) · weakest: December (76.8%)

75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 76.8%

Strongest calendar month

April

87.6% on-time · ~69 flights/mo

Busiest calendar month

August

~90 flights/mo avg

Weakest calendar month

December

76.8% on-time · ~64 flights/mo

Cancellation Rate

0.8%

15 of 1,877 flights

Diversion Rate

0.1%

1 of 1,877 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

SEA - Seattle

Full on-time, delay-cause, and seasonal performance for Seattle, WA.

SEA on-time profile

FAT - Fresno

Full on-time, delay-cause, and seasonal performance for Fresno, CA.

FAT on-time profile

Compare the two airports

See SEA and FAT side by side on delays, cancellations, and reliability.

Compare SEA vs FAT

Origin-hub reliability standing

Mid-pack among SEA departures

From SEA, this corridor sits with 63 other 75–85% on-time routes out of 89 tracked departures, not the hub's reliability leaders (25 at ≥85%) and not the softest ( 1 below 75%). Destination: Fresno · fleet on-time rank #1552 of 4927.

What the Data Says About SEA to FAT

Bureau of Transportation Statistics records show Seattle to Fresno (SEA to FAT) running a 84.1% on-time rate over 5,393 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 53.6 minutes. The 748-mile corridor is served by 9 carriers, and over the last 24 months 0.8% of 1,877 flights were cancelled, 0.1% diverted.

The monthly split is wide on this route: Jul 2024 posted the strongest performance at 89% on-time, while Dec 2024 came in at just 72% - a 17-point swing worth factoring into travel timing.

On the multi-year calendar, SEA–FAT peaks in April at 87.6% on-time while August carries the heaviest traffic (~90 flights per month) ; the softest month is December at 76.8%, a 10.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SEA to FAT rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SEA to FAT ranks #2331 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from SEA to FAT? ▼
Flights from Seattle to Fresno have a 84.1% on-time rate based on 5,393 flights. The average delay is 53.6 minutes. The best recent month was Jul 2024 with 89% on-time.
What is the cancellation rate for SEA to FAT? ▼
Over the last 24 months, 0.8% of flights on this route were cancelled (15 of 1,877 flights) and 0.1% were diverted.
How far is the flight from SEA to FAT? ▼
The flight distance from Seattle (SEA) to Fresno (FAT) is approximately 748 miles. This route is served by 9 carriers.
When is the best time to fly from SEA to FAT? ▼
The best recent month for on-time performance was Jul 2024 (89% on-time). The worst was Dec 2024 (72% on-time). Consider booking during months with historically better performance.

Airports on this route

SEA Airport

Seattle
FAT Airport

Fresno
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using SEA–FAT data

SEA–FAT runs 5.1 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare SEA and FAT airport profiles: delay causes and top routes differ even on the same corridor. SEA airport
  • If your dates flex, April (87.6% on-time) beats December (76.8%) on this corridor. Seasonal chart
  • 4 other routes post a similar 84.1% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.