Historical on-time performance
San Antonio to San Francisco
Flights on SAT–SFO arrive on time 87% of the time over the last 12 months.
based on 357 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.
- United AirlinesOn-time93%Medianon timep90on timeCancel0.0%Flights91
- SkyWest AirlinesOn-time85%Medianon timep9035 minCancel0.8%Flights266
Why flights run late
Delay causes
- Airline35%
- Weather1%
- Air traffic (NAS)26%
- Late aircraft39%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather50%
- Air traffic (NAS)50%
- Security0%
Most cancellations here are attributed to Weather. 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 SAT → 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 — 90% on time.
- Mornings90% on time · p90 10 min · 813 flights
- Evenings75% on time · p90 85 min · 226 flights
- Afternoons73% on time · p90 90 min · 272 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 78% to 91% on time.
- Saturdays91% on time · p90 10 min · 170 flights · limited
- Tuesdays89% on time · p90 15 min · 189 flights · limited
- Wednesdays87% on time · p90 15 min · 172 flights · limited
- Sundays83% on time · p90 30 min · 188 flights · limited
- Mondays82% on time · p90 45 min · 199 flights · limited
- Fridays80% on time · p90 55 min · 197 flights · limited
- Thursdays78% on time · p90 105 min · 196 flights · limited
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