Flights St. Louis → Miami
STL → MIA
Route overview
The flight route from St. Louis to Miami operates with a high on-time performance rate of 85%, with an average delay of just 4.1 minutes. Over the course of a year, this route sees 342 flights using Boeing 737-800 aircraft, serving one of the busiest destination airports in terms of annual passenger traffic at 50,684,396 passengers.
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 St. Louis (STL) → Miami (MIA) route is operated by American Airlines. Across 435 flights monitored in recent months, 85% arrived on time (within 15 min of schedule), with an average delay of 5 minutes. The cancellation rate is 1.84%. FlightGuard's average computed risk is 21.5/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Miami the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from St. Louis the average ATFM delay is 2.0 minutes.
Heading to Miami: what to expect in this direction
Flying from St. Louis (STL) to Miami (MIA) heads south-east for about 1,721 km, a flight time of roughly 2h 34m.
Departures from St. Louis on this leg cluster in the morning window: about 42% of STL-MIA flights take off then.
Air-traffic congestion: departing St. Louis the average ATFM delay is 2.0 min (atfm); arriving into Miami it is 2.0 min (atfm).
Across 435 tracked STL-MIA flights, 85% left on time with an average delay of 5 min and a 1.8% 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 STL-MIA
Airports
Frequently asked questions about STL-MIA
On the St. Louis (STL) -> Miami (MIA) route, on-time performance is 85% with an average delay of 5 minutes, based on 435 tracked flights.
The cancellation rate on St. Louis-Miami is 1.84% across 435 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 Miami, 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.
