Austin (AUS) to St Louis (STL) flights
Southwest Airlines flies nonstop from Austin Bergstrom International Airport to St. Louis Lambert International Airport, with about 20 flights a week in July 2026. The 721-mile flight takes about 1h 58m gate to gate.
- Distance
- 721 mi · 1,160 km
- Flight time
- 1h 58m
- Airlines
- 1
- Seats filled
- 74%
Airlines flying AUS to STL
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 20 | Boeing 737 MAX 8, Boeing 737-800, Boeing 737-700 / MAX 7 | 119,194 | 1h 58m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
AUS to STL flight schedule
5 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 7:25am and the last at 4:05pm. 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 1650Southwest Airlines | 7:25am | 9:30am | 12 | 100% |
| WN 998Southwest Airlines | 7:30am | 9:35am | 14 | 100% |
| WN 2530Southwest Airlines | 11:40am | 1:45pm | 12 | 92% |
| WN 1772Southwest Airlines | 3:15pm | 5:20pm | 24 | 83% |
| WN 411Southwest Airlines | 4:05pm | 6:10pm | 4 | n/a |
Is AUS to STL on time?
From September 2025 to August 2026, 78% of 973 flights arrived within 15 minutes of schedule and 0.1% were cancelled. Flights leaving around 5am were the most punctual (96%), those around 5pm the least (42%). Most delay time was caused by late-arriving aircraft (58%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 973 | 78% | 12 min | 0.1% |
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 | 148 | 96% | |
| 6am to 7am | 24 | 100% | |
| 7am to 8am | 176 | 94% | |
| 11am to 12pm | 73 | 82% | |
| 12pm to 1pm | 132 | 85% | |
| 1pm to 2pm | 49 | 63% | |
| 3pm to 4pm | 158 | 76% | |
| 4pm to 5pm | 71 | 52% | |
| 5pm to 6pm | 111 | 42% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 77 | 9,239 | |
| September 2025 | 73 | 9,031 | |
| October 2025 | 84 | 10,504 | |
| November 2025 | 86 | 10,478 | |
| December 2025 | 91 | 10,221 | |
| January 2026 | 62 | 5,993 | |
| February 2026 | 59 | 6,005 | |
| March 2026 | 88 | 11,374 | |
| April 2026 | 89 | 11,197 | |
| May 2026 | 93 | 12,799 | |
| June 2026 | 86 | 11,596 | |
| July 2026 | 89 | 11,026 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.