Flights Philadelphia → St. Louis
PHL → STL
Route overview
The flight route from Philadelphia to St. Louis operates with an average on-time performance rate of 82%, with flights typically experiencing a mean delay of 9.3 minutes. Over the course of a year, this route sees around 329 total flights using either Embraer 170 or Embraer 175 aircraft, serving the highly trafficked destination airport which accommodates approximately 13,665,517 passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Philadelphia (PHL) → St. Louis (STL) route is operated by American Airlines, Southwest Airlines. Across 402 flights monitored in recent months, 79% arrived on time (within 15 min of schedule), with an average delay of 12 minutes. The cancellation rate is 2.74%. FlightGuard's average computed risk is 21.1/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At St. Louis the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Philadelphia the average ATFM delay is 2.0 minutes.
Heading to St. Louis: what to expect in this direction
Flying from Philadelphia (PHL) to St. Louis (STL) heads west for about 1,306 km, a flight time of roughly 2h 3m.
Departures from Philadelphia on this leg cluster in the midday window: about 48% of PHL-STL flights take off then.
Air-traffic congestion: departing Philadelphia the average ATFM delay is 2.0 min (atfm); arriving into St. Louis it is 2.0 min (atfm).
Across 402 tracked PHL-STL flights, 79% left on time with an average delay of 12 min and a 2.7% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| American Airlines (AA) | 74% | 16 min | 3.0% |
| Southwest Airlines (WN) | 73% | 6 min | 3.1% |
Airlines operating PHL-STL
Airports
Frequently asked questions about PHL-STL
On the Philadelphia (PHL) -> St. Louis (STL) route, on-time performance is 79% with an average delay of 12 minutes, based on 402 tracked flights.
The cancellation rate on Philadelphia-St. Louis is 2.74% across 402 monitored flights.
The route is operated by 2 airlines: American Airlines, Southwest Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at St. Louis, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
