Jacksonville (JAX) to St Louis (STL) flights
Southwest Airlines flies nonstop from Jacksonville International Airport to St. Louis Lambert International Airport, with about 9 flights a week in July 2026. The 753-mile flight takes about 2h 6m gate to gate.
- Distance
- 753 mi · 1,212 km
- Flight time
- 2h 6m
- Airlines
- 1
- Seats filled
- 69%
Airlines flying JAX to STL
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Southwest Airlines | 9 | Boeing 737-700 / MAX 7, Boeing 737 MAX 8, Boeing 737-800 | 55,486 | 2h 6m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
JAX to STL flight schedule
6 flight numbers flew this route in August 2026. The first usually leaves at 6:15am and the last at 6:50pm. 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 753Southwest Airlines | 6:15am | 7:25am | 8 | n/a |
| WN 1686Southwest Airlines | 6:25am | 7:35am | 4 | n/a |
| WN 4975Southwest Airlines | 6:40am | 7:45am | 4 | n/a |
| WN 2792Southwest Airlines | 12:25pm | 1:30pm | 4 | n/a |
| WN 2535Southwest Airlines | 2:00pm | 3:10pm | 12 | 75% |
| WN 1323Southwest Airlines | 6:50pm | 7:55pm | 4 | n/a |
Is JAX to STL on time?
From September 2025 to August 2026, 89% of 491 flights arrived within 15 minutes of schedule and 0.6% were cancelled. Flights leaving around 7am were the most punctual (99%), those around 4pm the least (57%). Most delay time was caused by late-arriving aircraft (60%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 491 | 89% | 7 min | 0.6% |
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 | 61 | 97% | |
| 7am to 8am | 78 | 99% | |
| 8am to 9am | 101 | 98% | |
| 11am to 12pm | 20 | 100% | |
| 2pm to 3pm | 12 | 75% | |
| 3pm to 4pm | 24 | 87% | |
| 4pm to 5pm | 35 | 57% | |
| 6pm to 7pm | 58 | 86% | |
| 7pm to 8pm | 55 | 78% | |
| 8pm to 9pm | 36 | 72% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 57 | 6,153 | |
| September 2025 | 56 | 6,024 | |
| October 2025 | 57 | 6,351 | |
| November 2025 | 54 | 5,971 | |
| December 2025 | 58 | 6,235 | |
| January 2026 | 18 | 2,031 | |
| February 2026 | 19 | 2,081 | |
| March 2026 | 31 | 3,421 | |
| April 2026 | 36 | 3,471 | |
| May 2026 | 41 | 4,416 | |
| June 2026 | 38 | 4,678 | |
| July 2026 | 39 | 4,654 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.