Historical on-time performance
Phoenix to San Francisco
651 miData through May 2026Source: US DOT · BTS
Flights on PHX–SFO arrive on time 70% of the time over the last 12 months.
On-time rate70%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 4,292 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesbestOn-time76%Medianon timep9050 minCancel0.6%Flights1,454
- SkyWest AirlinesOn-time71%Medianon timep9060 minCancel0.2%Flights440
- American AirlinesOn-time69%Medianon timep9065 minCancel0.9%Flights1,319
- Southwest AirlinesOn-time62%Medianon timep9060 minCancel0.3%Flights1,079
Why flights run late
Delay causes
- Airline26%
- Weather3%
- Air traffic (NAS)35%
- Late aircraft36%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline17%
- Weather42%
- Air traffic (NAS)42%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 24 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 PHX → 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 — 77% on time.
- Mornings77% on time · p90 40 min · 3,956 flights
- Afternoons71% on time · p90 65 min · 2,439 flights
- Middays71% on time · p90 50 min · 3,241 flights
- Evenings68% on time · p90 70 min · 2,491 flights
- Overnights64% on time · p90 65 min · 1,976 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 79% on time.
- Tuesdays79% on time · p90 40 min · 1,792 flights
- Saturdays78% on time · p90 40 min · 1,940 flights
- Wednesdays73% on time · p90 50 min · 1,895 flights
- Fridays69% on time · p90 60 min · 2,126 flights
- Thursdays68% on time · p90 60 min · 2,119 flights
- Sundays67% on time · p90 65 min · 2,144 flights
- Mondays67% on time · p90 60 min · 2,087 flights
Keep exploring