Direct flights from St. Louis to Denver
75 nonstop flights a week on 3 airlines. Zero layovers — one hop from STL to DEN.
Flight time: about 1h48m nonstop
Which days does it fly?
When does it fly?
Departure times in St. Louis local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| SkyWest SKW5548 | 5:19a | 1h50m | Mon, Tue, Wed, Thu, Sat |
| SkyWest SKW5548 | 5:31a | 1h46m | Fri, Sun |
| Southwest SWA3356 | 6:16a | 1h41m | Thu |
| Southwest SWA3826 | 6:31a | 1h56m | Fri |
| Southwest SWA3826 | 6:36a | 1h46m | Mon |
| Southwest SWA3826 | 6:51a | 1h46m | Sun |
| Southwest SWA3826 | 7:09a | 1h52m | Tue, Sat |
| Southwest SWA3826 | 7:15a | 1h53m | Wed |
| Southwest SWA3827 | 8:31a | 1h44m | Sun |
| Southwest SWA3827 | 8:41a | 1h48m | Mon, Fri |
| Southwest SWA3827 | 8:48a | 1h48m | Tue–Wed |
| Southwest SWA4062 | 9:01a | 1h43m | Thu |
| United UAL2459 | 9:10a | 1h52m | Tue, Fri, Sun |
| United UAL2459 | 9:15a | 1h48m | Wed, Thu, Sat |
| United UAL2459 | 9:29a | 1h43m | Mon |
| Southwest SWA3827 | 9:37a | 1h46m | Sat |
| Southwest SWA225 | 10:02a | 1h44m | Sun |
| Southwest SWA125 | 12:24p | 1h47m | Tue |
| Southwest SWA4063 | 12:29p | 1h53m | Thu |
| Southwest SWA125 | 12:45p | 1h49m | Wed |
| Southwest SWA3829 | 1:02p | 1h44m | Sun |
| Southwest SWA3828 | 1:06p | 1h46m | Mon, Fri |
| Southwest SWA2704 | 1:37p | 1h43m | Sat |
| United UAL1380 | 1:41p | 1h47m | Tue, Wed, Sat |
| United UAL1380 | 2:05p | 1h56m | Fri, Sun |
| Southwest SWA3829 | 2:18p | 1h50m | Mon, Fri |
| United UAL1380 | 2:22p | 1h48m | Mon |
| Southwest SWA1678 | 3:15p | 1h45m | Sat |
| Southwest SWA985 | 4:12p | 1h50m | Tue |
| United UAL2323 | 4:52p | 1h52m | Mon, Tue, Thu, Sat |
| United UAL2323 | 5:01p | 1h55m | Wed |
| Southwest SWA985 | 5:07p | 1h47m | Wed |
| Southwest SWA3294 | 5:19p | 1h52m | Sun |
| Southwest SWA187 | 5:29p | 1h44m | Sat |
| Southwest SWA3831 | 5:59p | 1h54m | Mon |
| Southwest SWA3831 | 6:18p | 1h45m | Thu |
| Southwest SWA2704 | 6:34p | 2h4m | Thu |
| Southwest SWA3831 | 6:46p | 1h47m | Tue–Wed |
| Southwest SWA2704 | 6:53p | 1h47m | Mon |
| Southwest SWA3831 | 7:26p | 1h53m | Sun |
| Frontier FFT4567 | 8:12p | 1h50m | Wed, Sat |
| Southwest SWA3831 | 8:37p | 2h38m | Fri |
| United UAL2323 | 8:39p | 1h46m | Sun |
| Southwest SWA2704 | 8:51p | 2h21m | Fri |
| Southwest SWA3832 | 8:53p | 1h51m | Tue |
| Frontier FFT4567 | 8:55p | 1h43m | Mon |
| Southwest SWA3832 | 8:58p | 1h52m | Mon, Wed |
| United UAL2323 | 9:13p | 2h22m | Fri |
| Southwest SWA3832 | 9:20p | 1h47m | Thu |
| Southwest SWA3832 | 9:42p | 2h41m | Fri |
| Southwest SWA3832 | 9:50p | 2h3m | Sun |
| Frontier FFT4567 | 10:29p | 1h49m | Fri |
Southwest
UnitedThe route
One hop: STL → DENDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from St. Louis (STL) to Denver (DEN)
St. Louis Lambert International Airport (STL) has 75 nonstop flights a week to Denver (DEN), operated by Frontier, Southwest and United. No layovers, no connections — one hop out of STL and you're there.
This route flies every day of the week, so any travel day works. Route data updated October 2026 from observed departures.
Route data updated October 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from St. Louis to Denver?
The nonstop flight from St. Louis (STL) to Denver (DEN) takes about 1h48m in the air, based on recently observed nonstop departures.