Historical on-time performance
Philadelphia to San Diego
2,369 miData through Dec 2025Source: US DOT · BTS
Flights on PHL–SAN arrive on time 72% of the time over the last 12 months.
On-time rate72%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights
based on 1,036 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesOn-time72%Medianon timep9055 minCancel1.2%Flights1,036
Why flights run late
Delay causes
- Airline46%
- Weather3%
- Air traffic (NAS)30%
- Late aircraft20%
- Security1%
Most delay minutes here are attributed to Airline.
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 (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 82% on time.
- Mornings82% on time · p90 25 min · 1,086 flights
- Afternoons73% on time · p90 65 min · 589 flights
- Evenings66% on time · p90 65 min · 1,167 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 77% on time.
- Tuesdays77% on time · p90 35 min · 408 flights
- Wednesdays76% on time · p90 40 min · 412 flights
- Mondays75% on time · p90 50 min · 414 flights
- Sundays73% on time · p90 60 min · 411 flights
- Thursdays72% on time · p90 45 min · 403 flights
- Saturdays72% on time · p90 50 min · 404 flights
- Fridays70% on time · p90 60 min · 410 flights
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