Route
KTN → SEA
Ketchikan International Airport Seattle–Tacoma International Airport
Alerts at KTN and SEA
-
Warning High Wind Watch KTN
WIND ADVISORY IN EFFECT UNTIL 3 PM AKST THIS AFTERNOON... ...HIGH WIND WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING
Weather
How punctual is this route?
- On-time arrivals
- 84.9%
- Less than 15 minutes late
- Cancelled
- 2.6%
- Of scheduled flights
- Average delay when late
- 77 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,316
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 62%
- Airline (crew, maintenance, cleaning) 27%
- Air traffic control & airport 9%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 84.7% | 120 |
| October 2025 | 93.7% | 96 |
| November 2025 | 88.0% | 88 |
| December 2025 | 72.1% | 91 |
| January 2026 | 77.2% | 91 |
| February 2026 | 84.8% | 84 |
| March 2026 | 73.6% | 93 |
| April 2026 | 91.1% | 90 |
| May 2026 | 96.4% | 112 |
| June 2026 | 88.7% | 141 |
| July 2026 | 86.4% | 155 |
| August 2026 | 79.2% | 155 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Alaska Airlines | 1,316 | 84.9% | 2.6% | 77 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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