Showing Southwest only (incl. its regional partners)All airlines ×
9 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines
No nonstop, and no clear pattern: the best connection reaches St Louis on time 94% of the time.
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.
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 | SLC | STL | – | 89%few flights | 0.0% | 9 | Not flying now |
Alternatives with one stop
All connections →| SouthwestDetails → | SLC 05:42 → DEN 07:08WN 3737 | 2h 57m Denver | DEN 10:05 → STL 13:20WN 1753 | 6h 38m | 100% | 94% |
| SouthwestDetails → | SLC 07:45 → DEN 09:15WN 3738 | 3h 40m Denver | DEN 12:55 → STL 15:55WN 3152 | 7h 15m | 100% | 77% |
| SouthwestDetails → | SLC 06:15 → PHX 06:55WN 3751 | 1h 07m Phoenix | PHX 08:02 → STL 13:00WN 1467 | 5h 45m | 93% | 76% |
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