Historical on-time performance
Philadelphia to San Diego
2,369 miData through May 2026Source: US DOT · BTS
Flights on PHL–SAN arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.5%of scheduled flights
based on 1,046 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesOn-time76%Medianon timep9045 minCancel1.5%Flights1,046
Why flights run late
Delay causes
- Airline33%
- Weather10%
- Air traffic (NAS)28%
- Late aircraft28%
- Security1%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather94%
- Air traffic (NAS)6%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 16 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 PHL → 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 — 84% on time.
- Mornings84% on time · p90 20 min · 1,086 flights
- Afternoons73% on time · p90 55 min · 702 flights
- Evenings66% on time · p90 65 min · 1,171 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 78% on time.
- Tuesdays78% on time · p90 35 min · 421 flights
- Wednesdays77% on time · p90 40 min · 425 flights
- Mondays75% on time · p90 50 min · 428 flights
- Sundays73% on time · p90 60 min · 428 flights
- Saturdays73% on time · p90 50 min · 422 flights
- Thursdays72% on time · p90 50 min · 422 flights
- Fridays72% on time · p90 60 min · 429 flights
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