St Louis (STL) to Dallas (DAL) flights
Southwest Airlines flies nonstop from St. Louis Lambert International Airport to Dallas Love Field, with about 42 flights a week in July 2026. The 546-mile flight takes about 1h 38m gate to gate.
- Distance
- 546 mi · 879 km
- Flight time
- 1h 38m
- Airlines
- 1
- Seats filled
- 71%
Airlines flying STL to DAL
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 42 | Boeing 737 MAX 8, Boeing 737-700 / MAX 7, Boeing 737-800 | 220,560 | 1h 38m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
STL to DAL flight schedule
14 flight numbers flew this route in August 2026. The first usually leaves at 5:45am and the last at 8:45pm. 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 4535Southwest Airlines | 5:45am | 7:25am | 12 | 92% |
| WN 4583Southwest Airlines | 7:05am | 8:45am | 16 | 94% |
| WN 1173Southwest Airlines | 7:40am | 9:20am | 12 | 100% |
| WN 4584Southwest Airlines | 8:35am | 10:15am | 12 | 100% |
| WN 667Southwest Airlines | 9:00am | 10:40am | 4 | 94% |
| WN 664Southwest Airlines | 12:30pm | 2:05pm | 4 | n/a |
| WN 4823Southwest Airlines | 12:45pm | 2:25pm | 8 | n/a |
| WN 1293Southwest Airlines | 2:15pm | 3:50pm | 12 | 8% |
| WN 1535Southwest Airlines | 2:45pm | 4:20pm | 12 | 75% |
| WN 1356Southwest Airlines | 3:45pm | 5:20pm | 12 | 67% |
| WN 4586Southwest Airlines | 4:45pm | 6:20pm | 12 | 50% |
| WN 3820Southwest Airlines | 6:25pm | 8:00pm | 4 | n/a |
| WN 4585Southwest Airlines | 6:40pm | 8:15pm | 16 | 19% |
| WN 3821Southwest Airlines | 8:45pm | 10:25pm | 12 | 83% |
Is STL to DAL on time?
From September 2025 to August 2026, 75% of 1,944 flights arrived within 15 minutes of schedule and 1.4% were cancelled. Flights leaving around 7am were the most punctual (94%), those around 9pm the least (50%). Most delay time was caused by late-arriving aircraft (48%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 1,944 | 75% | 16 min | 1.4% |
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 | 213 | 93% | |
| 6am to 7am | 64 | 87% | |
| 7am to 8am | 114 | 94% | |
| 8am to 9am | 223 | 89% | |
| 9am to 10am | 49 | 94% | |
| 10am to 11am | 74 | 84% | |
| 11am to 12pm | 79 | 89% | |
| 12pm to 1pm | 116 | 81% | |
| 2pm to 3pm | 221 | 71% | |
| 3pm to 4pm | 125 | 67% | |
| 4pm to 5pm | 70 | 54% | |
| 5pm to 6pm | 86 | 60% | |
| 6pm to 7pm | 119 | 60% | |
| 7pm to 8pm | 135 | 68% | |
| 8pm to 9pm | 88 | 58% | |
| 9pm to 10pm | 143 | 50% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 170 | 19,174 | |
| September 2025 | 172 | 20,422 | |
| October 2025 | 153 | 19,520 | |
| November 2025 | 150 | 17,907 | |
| December 2025 | 151 | 17,740 | |
| January 2026 | 137 | 13,997 | |
| February 2026 | 146 | 14,666 | |
| March 2026 | 166 | 18,194 | |
| April 2026 | 156 | 16,936 | |
| May 2026 | 164 | 19,076 | |
| June 2026 | 167 | 20,449 | |
| July 2026 | 187 | 22,479 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.