Historical on-time performance
San Antonio to Philadelphia
1,496 miData through Dec 2025Source: US DOT · BTS
Flights on SAT–PHL arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled4.3%of scheduled flights
based on 93 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesOn-time77%Medianon timep9040 minCancel4.3%Flights93
Why flights run late
Delay causes
- Airline64%
- Weather2%
- Air traffic (NAS)14%
- Late aircraft19%
- Security0%
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 SAT → PHL
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 — 89% on time.
- Mornings89% on time · p90 10 min · 87 flights · limited
- Middays64% on time · p90 70 min · 212 flights
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