Denver (DEN) to St Louis (STL) flights
Nonstop from Denver International to St. Louis Lambert International Airport: distance, flying time, which airlines fly it and how often.
Distance
768 mi, great circle
Flying time
typical, gate to gate
Flights a day
average, November 2026
Airlines
passenger airlines
Airlines flying DEN to STL
Route map
The shortest path over the Earth's surface. Actual tracks vary with winds and airspace. Map © OpenStreetMap contributors.
Cheapest recent fare
Fares found in recent searches load here. You can also compare DEN to STL fares by month.
Both directions
- St. Louis Lambert International Airport (STL) · we don't have STL's route list yet
- All nonstop routes from Denver (DEN)
- DEN to STL on the flight-path tool
Frequently asked questions
How long is the flight from Denver to St Louis?
About 2h 18m gate to gate for the 1,236 km (768 mile) trip, estimated from distance. Schedules vary by airline and season, and winds can add or save time.
Which airlines fly nonstop from DEN to STL?
Frontier Airlines, Southwest Airlines and United Airlines, with about 11 flights a day between them in our data (AeroDataBox, November 2026).