Historical on-time performance
San Francisco to Anchorage
2,018 miData through May 2026Source: 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
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- Alaska AirlinesOn-time88%Medianon timep9015 minCancel0.0%Flights135
- United AirlinesOn-time88%Medianon timep9020 minCancel0.0%Flights97
Why flights run late
Delay causes
- Airline31%
- Weather8%
- Air traffic (NAS)30%
- Late aircraft30%
- 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 2 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 SFO → ANC
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 86% on time.
- Mondays86% on time · p90 20 min · 104 flights · limited
- Tuesdays83% on time · p90 20 min · 101 flights · limited
- Saturdays83% on time · p90 25 min · 151 flights · limited
- Sundays81% on time · p90 25 min · 109 flights · limited
- Fridays79% on time · p90 30 min · 107 flights · limited
- Wednesdays75% on time · p90 40 min · 102 flights · limited
- Thursdays74% on time · p90 60 min · 106 flights · limited
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