Historical on-time performance
Phoenix to San Diego
304 miData through May 2026Source: US DOT · BTS
Flights on PHX–SAN arrive on time 73% of the time over the last 12 months.
On-time rate73%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights
based on 5,790 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesbestOn-time83%Medianon timep9020 minCancel2.3%Flights218
- American AirlinesOn-time74%Medianon timep9050 minCancel0.7%Flights1,672
- Frontier AirlinesOn-time74%Medianon timep9050 minCancel1.5%Flights390
- Southwest AirlinesOn-time72%Medianon timep9045 minCancel1.1%Flights3,189
- SkyWest AirlinesOn-time65%Medianon timep9060 minCancel5.6%Flights321
Why flights run late
Delay causes
- Airline29%
- Weather3%
- Air traffic (NAS)21%
- Late aircraft47%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline28%
- Weather36%
- Air traffic (NAS)35%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 74 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 → SAN
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 — 87% on time.
- Mornings87% on time · p90 15 min · 4,437 flights
- Middays78% on time · p90 35 min · 4,180 flights
- Afternoons73% on time · p90 45 min · 3,302 flights
- Evenings67% on time · p90 55 min · 2,849 flights
- Overnights65% on time · p90 55 min · 2,307 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 82% on time.
- Tuesdays82% on time · p90 30 min · 2,311 flights
- Wednesdays82% on time · p90 30 min · 2,358 flights
- Saturdays81% on time · p90 30 min · 2,010 flights
- Mondays74% on time · p90 45 min · 2,575 flights
- Thursdays72% on time · p90 45 min · 2,620 flights
- Sundays71% on time · p90 50 min · 2,561 flights
- Fridays71% on time · p90 50 min · 2,642 flights
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