Miami (MIA) to St Louis (STL) flights
Southwest Airlines, American Airlines, Envoy Air fly nonstop from Miami International Airport to St. Louis Lambert International Airport, with about 23 flights a week in July 2026. The 1,068-mile flight takes about 2h 53m gate to gate.
- Distance
- 1,068 mi · 1,719 km
- Flight time
- 2h 53m
- Airlines
- 3
- Seats filled
- 79%
Airlines flying MIA to STL
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 9 | Boeing 737-700 / MAX 7, Boeing 737-800, Boeing 737 MAX 8 | 57,545 | 2h 51m |
| American Airlines | 7 | Boeing 737-800, Airbus A319, Airbus A321 | 76,162 | 2h 55m |
| Envoy Air | 7 | Embraer E175 | 7,852 | 2h 54m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
MIA to STL flight schedule
8 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 5:50am and the last at 8:40pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| WN 1517Southwest Airlines | 5:50am | 7:35am | 4 | n/a |
| WN 4222Southwest Airlines | 7:45am | 9:30am | 4 | n/a |
| AA 3954American Airlines · operated by Envoy Air | 8:23am | 10:24am | 4 | 93% |
| AA 1349American Airlines | 8:41am | 10:45am | 27 | 93% |
| WN 2948Southwest Airlines | 12:25pm | 2:15pm | 12 | 83% |
| WN 2456Southwest Airlines | 12:50pm | 2:40pm | 12 | 92% |
| WN 2917Southwest Airlines | 6:15pm | 8:00pm | 4 | n/a |
| AA 1594American Airlines | 8:40pm | 10:40pm | 31 | 66% |
Is MIA to STL on time?
From September 2025 to August 2026, 76% of 1,197 flights arrived within 15 minutes of schedule and 0.7% were cancelled. Flights leaving around 7am were the most punctual (95%), those around 4pm the least (62%). Most delay time was caused by late-arriving aircraft (51%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| American Airlines | 757 | 79% | 16 min | 0.8% |
| Southwest Airlines | 440 | 71% | 16 min | 0.5% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 5am to 6am | 28 | 96% | |
| 7am to 8am | 82 | 95% | |
| 8am to 9am | 194 | 91% | |
| 12pm to 1pm | 36 | 86% | |
| 1pm to 2pm | 30 | 83% | |
| 2pm to 3pm | 65 | 88% | |
| 3pm to 4pm | 172 | 75% | |
| 4pm to 5pm | 63 | 62% | |
| 5pm to 6pm | 54 | 57% | |
| 6pm to 7pm | 36 | 49% | |
| 7pm to 8pm | 43 | 30% | |
| 8pm to 9pm | 196 | 69% | |
| 9pm to 10pm | 107 | 74% | |
| 10pm to 11pm | 62 | 69% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 73 | 10,221 | |
| September 2025 | 69 | 8,875 | |
| October 2025 | 84 | 10,710 | |
| November 2025 | 106 | 11,760 | |
| December 2025 | 98 | 11,772 | |
| January 2026 | 108 | 13,679 | |
| February 2026 | 110 | 13,132 | |
| March 2026 | 130 | 16,245 | |
| April 2026 | 97 | 11,935 | |
| May 2026 | 89 | 10,682 | |
| June 2026 | 98 | 11,842 | |
| July 2026 | 100 | 11,179 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.