Historical on-time performance
Seattle to Ketchikan
680 miData through Dec 2025Source: US DOT · BTS
Flights on SEA–KTN arrive on time 71% of the time over the last 12 months.
On-time rate71%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights
based on 1,299 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesOn-time71%Medianon timep9045 minCancel0.2%Flights1,299
Why flights run late
Delay causes
- Airline56%
- Weather2%
- Air traffic (NAS)20%
- Late aircraft21%
- Security0%
Most delay minutes here are attributed to Airline.
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 (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 73% to 81% on time.
- Evenings81% on time · p90 30 min · 1,087 flights
- Middays77% on time · p90 35 min · 408 flights
- Mornings76% on time · p90 35 min · 1,299 flights
- Afternoons73% 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 79% on time.
- Saturdays79% on time · p90 30 min · 593 flights
- Wednesdays79% on time · p90 30 min · 581 flights
- Sundays77% on time · p90 35 min · 592 flights
- Tuesdays77% on time · p90 40 min · 587 flights
- Mondays76% on time · p90 40 min · 591 flights
- Fridays74% on time · p90 35 min · 594 flights
- Thursdays74% on time · p90 35 min · 584 flights
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