Route · SEA → KTN · 2020–2025 BTS data
Seattle to Ketchikan
The SEA–KTN corridor (Seattle, WA → Ketchikan, AK) runs ahead of the national average, served by 3 carriers across roughly 680 miles.
Data updated 2026-06-13
- 79.9%
- On-time
- +0.9 pts
- vs US avg
- 55 min
- Delay when late
- 7,680
- Flights
Cancelled
0.4%
Best Month
Feb 2024 94%
Worst Month
Dec 2025 59%
Distance
680 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 91 | 37 | 1 | 3 | AS |
| Nov 2025 | 87 | 16 | 0 | 1 | AS |
| Oct 2025 | 96 | 19 | 0 | 2 | AS |
| Sep 2025 | 120 | 18 | 0 | 2 | AS |
| Aug 2025 | 143 | 36 | 0 | 1 | AS |
| Jul 2025 | 155 | 53 | 1 | 0 | AS |
| Jun 2025 | 139 | 48 | 0 | 0 | AS |
| May 2025 | 110 | 43 | 1 | 0 | AS |
| Apr 2025 | 90 | 25 | 0 | 0 | AS |
| Mar 2025 | 93 | 22 | 0 | 0 | AS |
| Feb 2025 | 84 | 13 | 0 | 1 | AS |
| Jan 2025 | 91 | 27 | 0 | 4 | AS |
| Dec 2024 | 91 | 21 | 0 | 2 | AS |
| Nov 2024 | 88 | 15 | 0 | 0 | AS |
| Oct 2024 | 93 | 13 | 0 | 2 | AS |
| Sep 2024 | 122 | 27 | 0 | 0 | OO,AS |
| Aug 2024 | 182 | 40 | 1 | 3 | AS,OO |
| Jul 2024 | 185 | 44 | 1 | 0 | AS,OO |
| Jun 2024 | 162 | 35 | 0 | 2 | AS,OO |
| May 2024 | 124 | 34 | 0 | 0 | AS |
| Apr 2024 | 105 | 15 | 0 | 1 | AS |
| Mar 2024 | 93 | 17 | 1 | 0 | AS |
| Feb 2024 | 87 | 5 | 0 | 0 | AS |
| Jan 2024 | 91 | 25 | 5 | 0 | AS |
Cancellation Rate
0.4%
11 of 2,722 flights
Diversion Rate
0.9%
24 of 2,722 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 →KTN - Ketchikan
Full on-time, delay-cause, and seasonal performance for Ketchikan, AK.
Destination airport →Compare the two airports
See SEA and KTN 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–KTN.
Routes with a similar on-time rate
What the Data Says About SEA to KTN
7,680 tracked flights put the SEA to KTN pairing (Seattle to Ketchikan) at a 79.9% on-time rate, squarely in line with the wider network. Delays that do occur run 54.6 minutes on average. Across the 680-mile route and its 3 carriers, the trailing 24 months show 0.4% cancelled and 0.9% diverted (2,722 flights sampled).
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 94% on-time, while Dec 2025 came in at just 59% - a 35-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from SEA to KTN? ▼
What is the cancellation rate for SEA to KTN? ▼
How far is the flight from SEA to KTN? ▼
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Flight Guides
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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.