Historical on-time performance
Seattle to Sitka
861 miData through May 2026Source: US DOT · BTS
Flights on SEA–SIT arrive on time 62% of the time over the last 12 months.
On-time rate62%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 240 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesOn-time62%Median5 minp9060 minCancel0.4%Flights240
Why flights run late
Delay causes
- Airline29%
- Weather0%
- Air traffic (NAS)22%
- Late aircraft48%
- Security1%
Most delay minutes here are attributed to Late aircraft.
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 1 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 → SIT
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 57% to 67% on time.
- Middays67% on time · p90 45 min · 421 flights
- Overnights67% on time · p90 50 min · 296 flights
- Evenings57% on time · p90 70 min · 185 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 62% to 72% on time.
- Tuesdays72% on time · p90 35 min · 125 flights · limited
- Mondays66% on time · p90 45 min · 127 flights · limited
- Wednesdays64% on time · p90 55 min · 126 flights · limited
- Thursdays64% on time · p90 55 min · 131 flights · limited
- Saturdays63% on time · p90 55 min · 131 flights · limited
- Sundays63% on time · p90 65 min · 130 flights · limited
- Fridays62% on time · p90 55 min · 132 flights · limited
Keep exploring