STL → PHL American Airlines

American Airlines · St. Louis, MO to Philadelphia, PA · 863 flights, 2025-07-01 to 2026-06-30 · aggregated across 29 flight numbers

This route is usually on time, but has a real long-delay tail — typical (median) delay is -13 min, while the worst 10% run +48 min or later.
On-time arrival
83%
Median delay
-13 min
90th percentile
+48 min
Cancellation rate
2%

How on-time is American Airlines from STL to PHL?

Across every American Airlines flight number on STL → PHL (863 flights, 2025-07-01 to 2026-06-30), 83% arrived within 15 minutes of schedule. Median arrival delay -13 min; the worst 10% ran +48 min or later. 2% were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time69783%
16-30 min385%
31-60 min364%
61-120 min385%
2+ hrs344%

Performance by month

MonthFlightsOn-timeAvg delay
2025-077359%+21 min
2025-088479%+15 min
2025-097684%+22 min
2025-108581%+42 min
2025-117986%-2 min
2025-125886%+5 min
2026-015890%-4 min
2026-025192%-12 min
2026-036185%+3 min
2026-045990%-8 min
2026-057081%-4 min
2026-068985%-8 min

Performance by day of week

DayFlightsOn-time
Mon12679%
Tue12083%
Wed11589%
Thu12286%
Fri12583%
Sat11080%
Sun12580%

Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…