Flights Raleigh-durham → St. Louis
RDU → STL
How long is the flight from Raleigh-durham to St. Louis?
The flight from Raleigh-durham (RDU) to St. Louis (STL) takes 1h 40m on average. That is the median time recorded across 1 scheduled flight on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
Route overview
The flight route from Raleigh-Durham to St. Louis has a punctuality rate of 74%, with an average delay of 10.7 minutes per flight. Over the course of a year, this route sees approximately 156 flights, serving one of the destination's airports that handles nearly 13.7 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 Raleigh-durham (RDU) → St. Louis (STL) route is operated by Southwest Airlines. Across 393 flights monitored in recent months, 68% arrived on time (within 15 min of schedule), with an average delay of 15 minutes. The cancellation rate is 0.25%. FlightGuard's average computed risk is 26.8/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At St. Louis the average ATFM delay is 5.5 minutes (main cause: atfm). Departing from Raleigh-durham the average ATFM delay is 5.5 minutes.
Heading to St. Louis: what to expect in this direction
Flying from Raleigh-durham (RDU) to St. Louis (STL) heads west for about 1,072 km, a flight time of roughly 1h 40m.
Departures from Raleigh-durham on this leg cluster in the midday window: about 47% of RDU-STL flights take off then.
Air-traffic congestion: departing Raleigh-durham the average ATFM delay is 5.5 min (atfm); arriving into St. Louis it is 5.5 min (atfm).
Across 393 tracked RDU-STL flights, 68% left on time with an average delay of 15 min and a 0.3% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Southwest Airlines (WN) | 75% | 5 min | 0.3% |
Airlines operating RDU-STL
Airports
Frequently asked questions about RDU-STL
The flight from Raleigh-durham (RDU) to St. Louis (STL) takes 1h 40m on average. That is the median time recorded across 1 scheduled flight on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
On the Raleigh-durham (RDU) -> St. Louis (STL) route, on-time performance is 68% with an average delay of 15 minutes, based on 393 tracked flights.
The cancellation rate on Raleigh-durham-St. Louis is 0.25% across 393 monitored flights.
The route is operated by 1 airline: 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.
