Route · GEG → SEA · 2020–2025 BTS data
Spokane to Seattle
The GEG–SEA corridor (Spokane, WA → Seattle, WA) runs ahead of the national average, served by 20 carriers across roughly 224 miles.
Data updated 2026-06-13
- 86.5%
- On-time
- +7.5 pts
- vs US avg
- 65 min
- Delay when late
- 31,745
- Flights
Cancelled
0.7%
Best Month
Apr 2024 91%
Worst Month
Feb 2025 71%
Distance
224 mi
Carriers
20
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 396 | 73 | 4 | 1 | DL,AS,OO |
| Nov 2025 | 424 | 44 | 14 | 1 | OO,DL,AS |
| Oct 2025 | 447 | 63 | 3 | 1 | AS,DL,OO |
| Sep 2025 | 436 | 63 | 0 | 0 | OO,DL,AS |
| Aug 2025 | 504 | 94 | 3 | 0 | OO,AS,DL |
| Jul 2025 | 544 | 111 | 5 | 0 | AS,OO,DL |
| Jun 2025 | 472 | 99 | 0 | 0 | AS,OO,DL |
| May 2025 | 453 | 89 | 1 | 1 | AS,OO,DL |
| Apr 2025 | 410 | 53 | 1 | 0 | DL,OO,AS |
| Mar 2025 | 423 | 55 | 0 | 0 | AS,OO,DL |
| Feb 2025 | 378 | 108 | 3 | 0 | AS,OO,DL |
| Jan 2025 | 396 | 87 | 0 | 1 | AS,OO,DL |
| Dec 2024 | 437 | 86 | 1 | 2 | AS,DL,OO |
| Nov 2024 | 478 | 58 | 2 | 0 | OO,AS,DL |
| Oct 2024 | 449 | 48 | 0 | 0 | AS,OO,DL |
| Sep 2024 | 454 | 94 | 1 | 0 | OO,AS,DL |
| Aug 2024 | 452 | 71 | 0 | 0 | AS,DL,OO |
| Jul 2024 | 433 | 68 | 6 | 0 | AS,DL,OO |
| Jun 2024 | 404 | 63 | 1 | 0 | AS,DL,OO |
| May 2024 | 430 | 52 | 0 | 0 | AS,DL,OO |
| Apr 2024 | 437 | 38 | 2 | 0 | AS,DL,OO |
| Mar 2024 | 433 | 52 | 1 | 0 | AS,DL,OO |
| Feb 2024 | 385 | 37 | 1 | 0 | AS,DL,OO |
| Jan 2024 | 395 | 101 | 21 | 0 | AS,DL,OO |
Cancellation Rate
0.7%
70 of 10,470 flights
Diversion Rate
0.1%
7 of 10,470 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
GEG - Spokane
Full on-time, delay-cause, and seasonal performance for Spokane, WA.
Origin airport →SEA - Seattle
Full on-time, delay-cause, and seasonal performance for Seattle, WA.
Destination airport →Compare the two airports
See GEG and SEA side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to GEG–SEA.
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What the Data Says About GEG to SEA
Spokane to Seattle (GEG to SEA) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 86.5% on-time rate across 31,745 flights, with delays that do happen averaging 65.3 minutes. The corridor runs roughly 224 miles and is served by 20 carriers. Over the most recent 24 months, 70 of 10,470 flights were cancelled (0.7%) and 7 diverted (0.1%).
The monthly split is wide on this route: Apr 2024 posted the strongest performance at 91% on-time, while Feb 2025 came in at just 71% - a 20-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.