St Louis (STL) to Los Angeles (LAX) flights
Southwest Airlines, SkyWest Airlines fly nonstop from St. Louis Lambert International Airport to Los Angeles International Airport, with about 21 flights a week in July 2026. The 1,592-mile flight takes about 4h 3m gate to gate.
- Distance
- 1,592 mi · 2,562 km
- Flight time
- 4h 3m
- Airlines
- 2
- Seats filled
- 87%
Airlines flying STL to LAX
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 14 | Boeing 737 MAX 8, Boeing 737-800, Boeing 737-700 / MAX 7 | 100,556 | 3h 55m |
| SkyWest Airlines | 7 | Embraer E175 | 21,222 | 4h 19m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
STL to LAX flight schedule
6 flight numbers flew this route in August 2026, 2 of them almost daily. The first usually leaves at 6:00am and the last at 9:05pm. 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) |
|---|---|---|---|---|
| AA 6480American Airlines · operated by SkyWest Airlines | 6:00am | 8:10am | 27 | 90% |
| WN 3085Southwest Airlines | 6:25am | 8:20am | 12 | 92% |
| AA 6293American Airlines · operated by SkyWest Airlines | 6:37am | 8:46am | 4 | 87% |
| WN 3399Southwest Airlines | 8:25am | 10:20am | 14 | 100% |
| WN 3150Southwest Airlines | 2:15pm | 4:05pm | 4 | n/a |
| WN 3850Southwest Airlines | 9:05pm | 11:00pm | 24 | 46% |
Is STL to LAX on time?
From September 2025 to August 2026, 73% of 1,028 flights arrived within 15 minutes of schedule and 0.4% were cancelled. Flights leaving around 8am were the most punctual (87%), those around 9pm the least (41%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (50%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 674 | 72% | 16 min | 0.1% |
| American Airlines | 354 | 75% | 22 min | 0.8% |
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 |
|---|---|---|---|
| 6am to 7am | 328 | 77% | |
| 7am to 8am | 77 | 78% | |
| 8am to 9am | 165 | 87% | |
| 9am to 10am | 31 | 74% | |
| 10am to 11am | 74 | 87% | |
| 2pm to 3pm | 40 | 63% | |
| 6pm to 7pm | 51 | 77% | |
| 7pm to 8pm | 26 | 64% | |
| 8pm to 9pm | 44 | 61% | |
| 9pm to 10pm | 124 | 41% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 92 | 10,382 | |
| September 2025 | 82 | 9,218 | |
| October 2025 | 96 | 11,301 | |
| November 2025 | 104 | 11,680 | |
| December 2025 | 104 | 13,182 | |
| January 2026 | 75 | 8,699 | |
| February 2026 | 73 | 8,475 | |
| March 2026 | 75 | 8,602 | |
| April 2026 | 73 | 8,415 | |
| May 2026 | 76 | 9,269 | |
| June 2026 | 88 | 11,259 | |
| July 2026 | 91 | 11,986 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.