Flights Pittsburgh → St. Louis
PIT → STL
Route overview
The flight route from Pittsburgh to St. Louis operates with an Embraer RJ145 aircraft and has a 77% on-time performance rate, with an average delay of 12.5 minutes when flights are not on time. Over the past year, this route has seen 137 total flights departing from Pittsburgh International Airport, which opened in 1944, heading towards Lambert-St. Louis International Airport, serving over 13 million 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 Pittsburgh (PIT) → St. Louis (STL) route is operated by American Airlines. Across 168 flights monitored in recent months, 80% arrived on time (within 15 min of schedule), with an average delay of 10 minutes. The cancellation rate is 0.60%. FlightGuard's average computed risk is 22.4/100 (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 Pittsburgh the average ATFM delay is 2.0 minutes.
Heading to St. Louis: what to expect in this direction
Flying from Pittsburgh (PIT) to St. Louis (STL) heads west for about 889 km, a flight time of roughly 1h 32m.
Departures from Pittsburgh on this leg cluster in the overnight window: about 43% of PIT-STL flights take off then.
Air-traffic congestion: departing Pittsburgh the average ATFM delay is 2.0 min (atfm); arriving into St. Louis it is 2.0 min (atfm).
Across 168 tracked PIT-STL flights, 80% left on time with an average delay of 10 min and a 0.6% cancellation rate.
Route facts
Flights on this route
Check the risk of a specific flight.
Flexible on this trip? Compare flights
Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| American Airlines (AA) | 74% | 16 min | 3.0% |
Airlines operating PIT-STL
Airports
Frequently asked questions about PIT-STL
On the Pittsburgh (PIT) -> St. Louis (STL) route, on-time performance is 80% with an average delay of 10 minutes, based on 168 tracked flights.
The cancellation rate on Pittsburgh-St. Louis is 0.60% across 168 monitored flights.
The route is operated by 1 airline: American 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.
