Historical on-time performance
Austin to San Francisco
Flights on AUS–SFO arrive on time 76% of the time over the last 12 months.
based on 2,578 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-time80%Medianon timep9045 minCancel0.9%Flights1,645
- Alaska AirlinesOn-time76%Medianon timep9040 minCancel1.3%Flights393
- Delta Air LinesOn-time66%Medianon timep9060 minCancel1.4%Flights356
- Southwest AirlinesOn-time65%Medianon timep9060 minCancel1.1%Flights184
Why flights run late
Delay causes
- Airline23%
- Weather1%
- Air traffic (NAS)40%
- Late aircraft36%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline69%
- Weather27%
- Air traffic (NAS)4%
- Security0%
Most cancellations here are attributed to Airline. 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 AUS → 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 — 85% on time.
- Mornings85% on time · p90 25 min · 2,788 flights
- Middays73% on time · p90 55 min · 1,241 flights
- Afternoons72% on time · p90 50 min · 1,611 flights
- Overnights70% on time · p90 75 min · 348 flights
- Evenings68% on time · p90 70 min · 954 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 82% on time.
- Saturdays82% on time · p90 25 min · 886 flights
- Tuesdays80% on time · p90 35 min · 974 flights
- Wednesdays77% on time · p90 45 min · 967 flights
- Mondays76% on time · p90 50 min · 1,049 flights
- Fridays76% on time · p90 45 min · 1,037 flights
- Thursdays74% on time · p90 55 min · 1,032 flights
- Sundays73% on time · p90 60 min · 997 flights
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