Historical on-time performance
Arcata CA to San Francisco
250 miData through May 2026Source: US DOT · BTS
Flights on ACV–SFO arrive on time 65% of the time over the last 12 months.
On-time rate65%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled2.0%of scheduled flights
based on 1,287 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time65%Medianon timep9070 minCancel2.0%Flights1,287
Why flights run late
Delay causes
- Airline33%
- Weather23%
- Air traffic (NAS)26%
- Late aircraft19%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather65%
- Air traffic (NAS)35%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 26 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 ACV → SFO
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 78% on time.
- Mornings78% on time · p90 45 min · 1,078 flights
- Afternoons70% on time · p90 60 min · 1,722 flights
- Evenings64% on time · p90 65 min · 576 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 74% on time.
- Saturdays74% on time · p90 60 min · 455 flights
- Tuesdays73% on time · p90 55 min · 469 flights
- Wednesdays73% on time · p90 55 min · 490 flights
- Sundays70% on time · p90 60 min · 488 flights
- Thursdays70% on time · p90 50 min · 500 flights
- Fridays69% on time · p90 70 min · 499 flights
- Mondays69% on time · p90 60 min · 498 flights
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