Historical on-time performance
Seattle to Ketchikan
680 miData through May 2026Source: US DOT · BTS
Flights on SEA–KTN arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights
based on 1,301 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesOn-time74%Medianon timep9040 minCancel0.2%Flights1,301
Why flights run late
Delay causes
- Airline59%
- Weather3%
- Air traffic (NAS)15%
- Late aircraft23%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline100%
- Weather0%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 3 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SEA → KTN
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Evenings are the most reliable time of day to fly this route — 82% on time.
- Evenings82% on time · p90 30 min · 1,087 flights
- Middays77% on time · p90 35 min · 413 flights
- Mornings77% on time · p90 35 min · 1,299 flights
- Afternoons72% on time · p90 40 min · 1,328 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 80% on time.
- Saturdays80% on time · p90 30 min · 597 flights
- Wednesdays79% on time · p90 30 min · 579 flights
- Sundays77% on time · p90 35 min · 595 flights
- Tuesdays76% on time · p90 40 min · 584 flights
- Mondays76% on time · p90 40 min · 588 flights
- Thursdays74% on time · p90 30 min · 586 flights
- Fridays74% on time · p90 35 min · 598 flights
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