Historical on-time performance
San Francisco to Phoenix
Flights on SFO–PHX arrive on time 75% of the time over the last 12 months.
based on 4,231 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.
- SkyWest AirlinesOn-time85%Medianon timep9020 minCancel0.8%Flights379
- United AirlinesOn-time81%Medianon timep9030 minCancel0.5%Flights1,452
- American AirlinesOn-time77%Medianon timep9055 minCancel0.8%Flights1,321
- Southwest AirlinesOn-time63%Medianon timep9065 minCancel0.6%Flights1,079
Why flights run late
Delay causes
- Airline38%
- Weather1%
- Air traffic (NAS)11%
- Late aircraft51%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline22%
- Weather44%
- Air traffic (NAS)33%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 27 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 → PHX
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 · 4,088 flights
- Evenings74% on time · p90 60 min · 2,264 flights
- Afternoons72% on time · p90 50 min · 3,003 flights
- Middays70% on time · p90 55 min · 3,663 flights
- Overnights69% on time · p90 75 min · 1,075 flights
Best day of week
Tuesdays are the most reliable day to fly this route — 83% on time.
- Tuesdays83% on time · p90 30 min · 1,798 flights
- Saturdays80% on time · p90 30 min · 1,933 flights
- Wednesdays79% on time · p90 40 min · 1,879 flights
- Mondays74% on time · p90 55 min · 2,089 flights
- Thursdays74% on time · p90 55 min · 2,117 flights
- Sundays74% on time · p90 55 min · 2,159 flights
- Fridays74% on time · p90 55 min · 2,118 flights
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