Route · SEA → GEG · 2020–2025 BTS data
Seattle to Spokane
The SEA–GEG corridor (Seattle, WA → Spokane, WA) runs ahead of the national average, served by 21 carriers across roughly 224 miles.
Data updated 2026-06-13
- 83.3%
- On-time
- +4.3 pts
- vs US avg
- 59 min
- Delay when late
- 31,686
- Flights
Cancelled
0.6%
Best Month
Oct 2025 89%
Worst Month
Jul 2025 70%
Distance
224 mi
Carriers
21
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 395 | 87 | 3 | 1 | DL,AS,OO |
| Nov 2025 | 423 | 49 | 14 | 0 | OO,DL,AS |
| Oct 2025 | 451 | 49 | 4 | 0 | AS,DL,OO |
| Sep 2025 | 462 | 77 | 1 | 0 | OO,DL,AS |
| Aug 2025 | 513 | 131 | 3 | 0 | OO,AS,DL |
| Jul 2025 | 544 | 162 | 5 | 1 | AS,DL,OO |
| Jun 2025 | 471 | 136 | 0 | 0 | AS,OO,DL |
| May 2025 | 453 | 108 | 1 | 0 | AS,OO,DL |
| Apr 2025 | 410 | 64 | 1 | 0 | DL,OO,AS |
| Mar 2025 | 424 | 82 | 0 | 0 | AS,OO,DL |
| Feb 2025 | 379 | 111 | 2 | 0 | AS,OO,DL |
| Jan 2025 | 397 | 83 | 0 | 1 | AS,DL,OO |
| Dec 2024 | 436 | 103 | 2 | 0 | AS,DL,OO |
| Nov 2024 | 477 | 85 | 1 | 0 | OO,AS,DL |
| Oct 2024 | 450 | 76 | 0 | 1 | AS,OO,DL |
| Sep 2024 | 454 | 92 | 0 | 0 | OO,AS,DL |
| Aug 2024 | 453 | 120 | 0 | 0 | AS,DL,OO |
| Jul 2024 | 433 | 83 | 6 | 0 | AS,DL,OO |
| Jun 2024 | 403 | 103 | 0 | 0 | AS,DL,OO |
| May 2024 | 430 | 76 | 0 | 0 | AS,DL,OO |
| Apr 2024 | 437 | 68 | 2 | 0 | AS,DL,OO |
| Mar 2024 | 434 | 86 | 0 | 1 | AS,DL,OO |
| Feb 2024 | 386 | 58 | 0 | 0 | AS,DL,OO |
| Jan 2024 | 396 | 112 | 21 | 1 | AS,DL,OO |
Cancellation Rate
0.6%
66 of 10,511 flights
Diversion Rate
0.1%
6 of 10,511 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.
Origin airport →GEG - Spokane
Full on-time, delay-cause, and seasonal performance for Spokane, WA.
Destination airport →Compare the two airports
See SEA and GEG side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to SEA–GEG.
Routes with a similar on-time rate
What the Data Says About SEA to GEG
Bureau of Transportation Statistics records show Seattle to Spokane (SEA to GEG) running a 83.3% on-time rate over 31,686 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 58.7 minutes. The 224-mile corridor is served by 21 carriers, and over the last 24 months 0.6% of 10,511 flights were cancelled, 0.1% diverted.
The monthly split is wide on this route: Oct 2025 posted the strongest performance at 89% on-time, while Jul 2025 came in at just 70% - a 19-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.
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.