Leave before 9 am: 94% depart on time. After 4 pm it’s 62%.
Time of day × airport
Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).
Pick an hour to see this route’s flights leaving then.
Flights, best and worst
Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.
No Southwest flight on this route ran 150+ times in the year.
All 9 Southwest flights in the current schedule
Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.
| WN 4084 | HOU 07:20 | STL 09:25 | 2h 05m | 41 | 83% | 0.0% | 64 min |
| WN 3662 | HOU 07:35 | STL 09:35 | 2h 00m | 17 | 94% | 0.0% | 17 min |
| WN 2084 | HOU 10:40 | STL 12:45 | 2h 05m | 34 | 76% | 0.0% | 86 min |
| WN 1643 | HOU 11:05 | STL 13:05 | 2h 00m | 16 | 80% | 6.2% | 129 min |
| WN 4642 | HOU 13:20 | STL 15:20 | 2h 00m | 42 | 76% | 0.0% | 30 min |
| WN 5064 | HOU 15:00 | STL 17:00 | 2h 00m | 12 | 73% | 8.3% | 98 min |
| WN 4724 | HOU 17:10 | STL 19:10 | 2h 00m | 26 | 73% | 0.0% | 29 min |
| WN 1413 | HOU 19:05 | STL 21:10 | 2h 05m | 16 | 69% | 0.0% | 35 min |
| WN 2087 | HOU 22:40 | STL 00:45 | 2h 00m | 33 | 76% | 0.0% | 50 min |
Nonstops by airline and airport
Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.
| Southwest | HOU | STL | 2h 00m | 80% | 0.4% | 1,559 | Flying now |
About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON