St Louis (STL) to Miami (MIA) flights
Southwest Airlines, American Airlines, Envoy Air fly nonstop from St. Louis Lambert International Airport to Miami International Airport, with about 22 flights a week in July 2026. The 1,068-mile flight takes about 2h 41m gate to gate.
- Distance
- 1,068 mi · 1,719 km
- Flight time
- 2h 41m
- Airlines
- 3
- Seats filled
- 80%
Airlines flying STL to MIA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 8 | Boeing 737 MAX 8, Boeing 737-700 / MAX 7, Boeing 737-800 | 58,987 | 2h 39m |
| American Airlines | 7 | Boeing 737-800, Airbus A319, Airbus A321 | 76,803 | 2h 42m |
| Envoy Air | 7 | Embraer E175 | 7,760 | 2h 41m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
STL to MIA flight schedule
7 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 5:00am and the last at 6:55pm. 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) |
|---|---|---|---|---|
| AA 1716American Airlines | 5:00am | 8:53am | 31 | 96% |
| AA 3954American Airlines · operated by Envoy Air | 11:00am | 2:46pm | 4 | 85% |
| AA 477American Airlines | 11:35am | 3:29pm | 27 | 85% |
| WN 4591Southwest Airlines | 11:35am | 3:15pm | 16 | 94% |
| WN 3346Southwest Airlines | 12:30pm | 4:10pm | 12 | 33% |
| WN 4272Southwest Airlines | 4:15pm | 7:55pm | 4 | n/a |
| WN 901Southwest Airlines | 6:55pm | 10:35pm | 4 | n/a |
Is STL to MIA on time?
From September 2025 to August 2026, 82% of 1,200 flights arrived within 15 minutes of schedule and 0.7% were cancelled. Flights leaving around 5am were the most punctual (94%), those around 12pm the least (65%). Most delay time was caused by late-arriving aircraft (43%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| American Airlines | 759 | 88% | 11 min | 0.8% |
| Southwest Airlines | 441 | 72% | 14 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 | 369 | 94% | |
| 7am to 8am | 46 | 83% | |
| 8am to 9am | 79 | 80% | |
| 10am to 11am | 54 | 83% | |
| 11am to 12pm | 207 | 86% | |
| 12pm to 1pm | 113 | 65% | |
| 1pm to 2pm | 77 | 70% | |
| 4pm to 5pm | 49 | 71% | |
| 6pm to 7pm | 154 | 76% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 72 | 9,557 | |
| September 2025 | 67 | 8,736 | |
| October 2025 | 84 | 11,730 | |
| November 2025 | 105 | 11,690 | |
| December 2025 | 99 | 13,745 | |
| January 2026 | 108 | 12,997 | |
| February 2026 | 110 | 13,051 | |
| March 2026 | 131 | 15,904 | |
| April 2026 | 96 | 10,417 | |
| May 2026 | 90 | 11,420 | |
| June 2026 | 99 | 12,666 | |
| July 2026 | 98 | 11,939 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.