PlainFlights

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

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?
Flights from Seattle to Ketchikan have a 79.9% on-time rate based on 7,680 flights. The average delay is 54.6 minutes. The best recent month was Feb 2024 with 94% on-time.
What is the cancellation rate for SEA to KTN?
Over the last 24 months, 0.4% of flights on this route were cancelled (11 of 2,722 flights) and 0.9% were diverted.
How far is the flight from SEA to KTN?
The flight distance from Seattle (SEA) to Ketchikan (KTN) is approximately 680 miles. This route is served by 3 carriers.
When is the best time to fly from SEA to KTN?
The best recent month for on-time performance was Feb 2024 (94% on-time). The worst was Dec 2025 (59% on-time). Consider booking during months with historically better performance.

Explore PlainFlights

Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights Editorial

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.