Route
SEA → KTN
Seattle–Tacoma International Airport Ketchikan International Airport
Alerts at SEA and KTN
-
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
- 78.4%
- Less than 15 minutes late
- Cancelled
- 0.2%
- Of scheduled flights
- Average delay when late
- 58 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,315
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 60%
- Late-arriving aircraft 22%
- Air traffic control & airport 14%
- Extreme weather 4%
- 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 | 79.8% | 96 |
| November 2025 | 81.4% | 87 |
| December 2025 | 57.5% | 91 |
| January 2026 | 80.2% | 91 |
| February 2026 | 81.7% | 84 |
| March 2026 | 73.9% | 93 |
| April 2026 | 82.2% | 90 |
| May 2026 | 85.6% | 112 |
| June 2026 | 79.4% | 141 |
| July 2026 | 77.3% | 155 |
| August 2026 | 76.0% | 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 | 1,315 | 78.4% | 0.2% | 58 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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