Route · KTN → SEA · 2020–2025 BTS data
Ketchikan to Seattle
The KTN–SEA corridor (Ketchikan, AK → Seattle, WA) runs ahead of the national average, served by 3 carriers across roughly 680 miles.
Data updated 2026-06-13
- 86%
- On-time
- +7 pts
- vs US avg
- 72 min
- Delay when late
- 7,683
- Flights
Cancelled
2.1%
Best Month
Apr 2025 96%
Worst Month
Aug 2025 71%
Distance
680 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 91 | 24 | 5 | 0 | AS |
| Nov 2025 | 88 | 10 | 5 | 0 | AS |
| Oct 2025 | 96 | 6 | 1 | 0 | AS |
| Sep 2025 | 120 | 18 | 2 | 0 | AS |
| Aug 2025 | 143 | 42 | 1 | 0 | AS |
| Jul 2025 | 155 | 39 | 2 | 0 | AS |
| Jun 2025 | 139 | 27 | 1 | 0 | AS |
| May 2025 | 110 | 18 | 2 | 0 | AS |
| Apr 2025 | 90 | 4 | 2 | 0 | AS |
| Mar 2025 | 93 | 7 | 0 | 0 | AS |
| Feb 2025 | 84 | 7 | 3 | 0 | AS |
| Jan 2025 | 91 | 7 | 9 | 0 | AS |
| Dec 2024 | 91 | 13 | 0 | 0 | AS |
| Nov 2024 | 88 | 7 | 1 | 0 | AS |
| Oct 2024 | 93 | 9 | 3 | 0 | AS |
| Sep 2024 | 122 | 13 | 2 | 0 | OO,AS |
| Aug 2024 | 182 | 53 | 0 | 1 | AS,OO |
| Jul 2024 | 185 | 28 | 1 | 0 | AS,OO |
| Jun 2024 | 162 | 29 | 3 | 0 | AS,OO |
| May 2024 | 124 | 11 | 2 | 0 | AS |
| Apr 2024 | 105 | 5 | 1 | 0 | AS |
| Mar 2024 | 93 | 6 | 3 | 0 | AS |
| Feb 2024 | 87 | 9 | 1 | 0 | AS |
| Jan 2024 | 91 | 12 | 7 | 0 | AS |
Cancellation Rate
2.1%
57 of 2,723 flights
Diversion Rate
0.0%
1 of 2,723 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
KTN - Ketchikan
Full on-time, delay-cause, and seasonal performance for Ketchikan, AK.
Origin airport →SEA - Seattle
Full on-time, delay-cause, and seasonal performance for Seattle, WA.
Destination airport →Compare the two airports
See KTN 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 KTN–SEA.
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What the Data Says About KTN to SEA
Ketchikan to Seattle (KTN to SEA) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 86% on-time rate across 7,683 flights, with delays that do happen averaging 72.3 minutes. The corridor runs roughly 680 miles and is served by 3 carriers. Over the most recent 24 months, 57 of 2,723 flights were cancelled (2.1%) and 1 diverted (0.0%).
The monthly split is wide on this route: Apr 2025 posted the strongest performance at 96% on-time, while Aug 2025 came in at just 71% - a 25-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.