Route · FCA → SEA · 2020–2025 BTS data
Kalispell to Seattle
The FCA–SEA corridor (Kalispell, MT → Seattle, WA) runs ahead of the national average, served by 4 carriers across roughly 379 miles.
Data updated 2026-06-13
- 83.3%
- On-time
- +4.3 pts
- vs US avg
- 63 min
- Delay when late
- 2,374
- Flights
Cancelled
1.2%
Best Month
May 2021 97%
Worst Month
Dec 2022 57%
Distance
379 mi
Carriers
4
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2022 | 77 | 33 | 8 | 0 | QX |
| Nov 2022 | 87 | 29 | 1 | 0 | OO,QX |
| Oct 2022 | 93 | 12 | 0 | 0 | QX |
| Sep 2022 | 114 | 24 | 0 | 0 | QX |
| Aug 2022 | 93 | 17 | 0 | 1 | QX |
| Jul 2022 | 93 | 16 | 0 | 1 | QX |
| Jun 2022 | 90 | 15 | 0 | 0 | QX |
| May 2022 | 93 | 17 | 0 | 0 | QX |
| Apr 2022 | 90 | 24 | 0 | 0 | QX |
| Mar 2022 | 69 | 5 | 0 | 0 | QX |
| Feb 2022 | 56 | 11 | 0 | 0 | QX |
| Jan 2022 | 62 | 20 | 4 | 0 | QX |
| Dec 2021 | 62 | 17 | 3 | 0 | QX |
| Nov 2021 | 87 | 15 | 0 | 0 | QX,OO |
| Oct 2021 | 93 | 11 | 1 | 0 | OO,QX |
| Sep 2021 | 100 | 16 | 0 | 0 | OO,QX |
| Aug 2021 | 133 | 28 | 1 | 0 | OO,QX |
| Jul 2021 | 133 | 14 | 0 | 0 | OO,QX |
| Jun 2021 | 128 | 7 | 0 | 0 | OO,QX |
| May 2021 | 106 | 3 | 0 | 0 | OO,QX |
| Apr 2021 | 93 | 9 | 0 | 0 | QX |
| Mar 2021 | 124 | 11 | 3 | 0 | QX |
| Feb 2021 | 112 | 24 | 6 | 0 | QX |
| Jan 2021 | 124 | 13 | 0 | 0 | QX |
Cancellation Rate
1.2%
27 of 2,312 flights
Diversion Rate
0.1%
2 of 2,312 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
FCA - Kalispell
Full on-time, delay-cause, and seasonal performance for Kalispell, MT.
Origin airport →SEA - Seattle
Full on-time, delay-cause, and seasonal performance for Seattle, WA.
Destination airport →Compare the two airports
See FCA 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 FCA–SEA.
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What the Data Says About FCA to SEA
Bureau of Transportation Statistics records show Kalispell to Seattle (FCA to SEA) running a 83.3% on-time rate over 2,374 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 63.0 minutes. The 379-mile corridor is served by 4 carriers, and over the last 24 months 1.2% of 2,312 flights were cancelled, 0.1% diverted.
The monthly split is wide on this route: May 2021 posted the strongest performance at 97% on-time, while Dec 2022 came in at just 57% - a 40-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.