Flights St. Louis → Milwaukee
STL → MKE
Route overview
The flight route from St. Louis to Milwaukee has an on-time performance rate of 83%, with an average delay of 9.1 minutes per flight. Over the course of a year, this route sees 164 flights, serving a significant number of passengers at its destination airport, which handles approximately 6,015,731 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 St. Louis (STL) → Milwaukee (MKE) route is operated by Southwest Airlines. Across 223 flights monitored in recent months, 79% arrived on time (within 15 min of schedule), with an average delay of 11 minutes. The cancellation rate is 3.14%. FlightGuard's average computed risk is 20.3/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Milwaukee 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 Milwaukee: what to expect in this direction
Flying from St. Louis (STL) to Milwaukee (MKE) heads north-east for about 511 km, a flight time of roughly 1h 4m.
Departures from St. Louis on this leg cluster in the midday window: about 48% of STL-MKE flights take off then.
Air-traffic congestion: departing St. Louis the average ATFM delay is 2.0 min (atfm); arriving into Milwaukee it is 2.0 min (atfm).
Across 223 tracked STL-MKE flights, 79% left on time with an average delay of 11 min and a 3.1% 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 |
|---|---|---|---|
| Southwest Airlines (WN) | 73% | 6 min | 3.1% |
Airlines operating STL-MKE
Airports
Frequently asked questions about STL-MKE
On the St. Louis (STL) -> Milwaukee (MKE) route, on-time performance is 79% with an average delay of 11 minutes, based on 223 tracked flights.
The cancellation rate on St. Louis-Milwaukee is 3.14% across 223 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 Milwaukee, 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.
