Leave before 9 am: 93% depart on time. After 4 pm it’s almost half.
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 3967 | STL 05:45 | PHX 06:55 | 3h 10m | 42 | 98% | 0.0% | 22 min |
| WN 4673 | STL 07:20 | PHX 08:35 | 3h 15m | 12 | 100% | 0.0% | – |
| WN 3968 | STL 13:20 | PHX 14:30 | 3h 10m | 42 | 55% | 0.0% | 50 min |
| WN 170 | STL 13:40 | PHX 14:50 | 3h 10m | 16 | 75% | 0.0% | 94 min |
| WN 3306 | STL 18:20 | PHX 19:30 | 3h 10m | 16 | 69% | 0.0% | 44 min |
| WN 4615 | STL 19:20 | PHX 20:30 | 3h 10m | 41 | 40% | 0.0% | 65 min |
| WN 4360 | STL 21:45 | PHX 22:55 | 3h 10m | 54 | 31% | 0.0% | 55 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 | PHX | 3h 25m | 73% | 0.3% | 1,619 | 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