Historical on-time performance
San Francisco to Anchorage
2,018 miData through Dec 2025Source: US DOT · BTS
Flights on SFO–ANC arrive on time 88% of the time over the last 12 months.
On-time rate88%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 232 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- United AirlinesOn-time88%Medianon timep9020 minCancel0.0%Flights97
- Alaska AirlinesOn-time88%Medianon timep9015 minCancel0.0%Flights135
Why flights run late
Delay causes
- Airline31%
- Weather8%
- Air traffic (NAS)30%
- Late aircraft30%
- 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 SFO → ANC
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Evenings are the most reliable time of day to fly this route — 83% on time.
- Evenings83% on time · p90 25 min · 649 flights
- Middays54% on time · p90 45 min · 68 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 85% on time.
- Mondays85% on time · p90 20 min · 103 flights · limited
- Tuesdays84% on time · p90 20 min · 100 flights · limited
- Saturdays84% on time · p90 25 min · 148 flights · limited
- Fridays80% on time · p90 30 min · 104 flights · limited
- Sundays79% on time · p90 40 min · 106 flights · limited
- Wednesdays77% on time · p90 40 min · 99 flights · limited
- Thursdays73% on time · p90 60 min · 103 flights · limited
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