Leave before 9 am: 94% depart on time. After 4 pm it’s 56%.
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 7 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 3919 | STL 05:20 | HOU 07:25 | 2h 05m | 57 | 91% | 3.5% | 28 min |
| WN 3928 | STL 07:55 | HOU 10:00 | 2h 05m | 50 | 88% | 0.0% | 18 min |
| WN 4752 | STL 13:50 | HOU 15:55 | 2h 05m | 34 | 50% | 0.0% | 69 min |
| WN 5065 | STL 17:40 | HOU 19:45 | 2h 05m | 12 | 73% | 8.3% | 97 min |
| WN 770 | STL 18:00 | HOU 20:05 | 2h 05m | 16 | 69% | 0.0% | 50 min |
| WN 3136 | STL 18:50 | HOU 20:55 | 2h 05m | 26 | 62% | 0.0% | 46 min |
| WN 4617 | STL 21:45 | HOU 23:50 | 2h 02m | 33 | 52% | 0.0% | 89 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 | STL | HOU | 2h 10m | 79% | 0.3% | 1,539 | 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