St. LouisDenverNonstop Flight TimeSTL–DEN
St. Louis (St. Louis Lambert International Airport) to Denver (Denver International Airport).
The estimated flight time from St. Louis (STL) to Denver (DEN) is about 2h 10m, covering 768 miles. Southwest Airlines, United Airlines, and Frontier Airlines fly the route nonstop with 12/day departures, from 05:10 to 22:35 local time.
Plan this routeAt a glance
| Est. flight time | Distance | Route type | Captured freq. | Market |
|---|---|---|---|---|
| ~2h 10m Estimated from great-circle distance — no tracked flights yet. | 768 mi | Nonstop | 12/day From the current provider sample; confirm live timetables before booking. | Domestic |
Airlines on this route
Nonstop airlines from St. Louis to Denver
Southwest Airlines, United Airlines, and Frontier Airlines operate 12/day flights from STL to DEN. Departures leave from Terminals 2 and 1 at STL.
- First departure
- 05:10
- Last departure
- 22:35
- Cadence
- ~every 30 min
- Scheduled departure times
- 32
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| Southwest Airlines | 6-7/day | Boeing 737 · Terminal 2 · Seat map | 05:35 |
Aircraft on this route
Flying the other way?
DEN to STL flights — 12-13/day on 3 airlines →Methodology: airline, aircraft, terminal, and departure-time details come from a full week of published airline schedules for STL, refreshed on a rolling basis. Frequency uses 84 scheduled departures across 7 observed days; flight time is estimated from flying distance until this route has enough tracked flights for an observed average.
Route FAQ
How long is the flight from St. Louis to Denver?
The estimated flight time from St. Louis (STL) to Denver (DEN) is about 2h 10m, based on the 768-mile flying distance.
How far is St. Louis from Denver?
St. Louis (STL) to Denver (DEN) is about 768 miles by air.
Are there nonstop flights from St. Louis to Denver?
Yes. Southwest Airlines, United Airlines, and Frontier Airlines fly nonstop from St. Louis (STL) to Denver (DEN), with 12/day departures.
Which airlines fly from St. Louis to Denver?
Southwest Airlines, United Airlines, and Frontier Airlines fly nonstop from St. Louis (STL) to Denver (DEN).
What aircraft fly from St. Louis to Denver?
The STL–DEN route is flown with Airbus A320 family, Boeing 737.