Question 1

How long is the flight from St Louis to Denver?

Accepted Answer

The flight from St. Louis Lambert International Airport (STL) to Denver International Airport (DEN) covers 1,236 km and takes approximately 1h 52m. Actual duration varies by airline, routing, and wind conditions — check individual flight listings for scheduled times.

Question 2

Which airlines fly from St Louis to Denver?

Accepted Answer

There are 4 airlines operating the STL–DEN route. Use the TrackMyWings app to compare schedules, prices, and on-time performance across all carriers on this route.

Question 3

What is the best airline from St Louis to Denver?

Accepted Answer

The best airline on the STL–DEN route depends on your priorities — price, on-time performance, cabin experience, or loyalty miles. TrackMyWings tracks real-time on-time data for all 4 carriers on this route so you can make an informed choice.

Question 4

How often do flights operate from St Louis to Denver?

Accepted Answer

The STL–DEN route is served by 4 airlines, with combined daily frequency varying by season. Check the TrackMyWings schedule view for live departure listings and to find the next available flight from St Louis to Denver.

Flight	Airline	Dep Time	Arr Time	Status
F9 6604	Frontier Airlines	08:00	14:00	Scheduled
FL 881	AirTran Airways	08:00	14:00	Scheduled
UA 9859	United Airlines	08:00	14:00	Scheduled
WN 1396	Southwest Airlines	08:00	14:00	Scheduled

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St Louis (STL) to Denver (DEN) Flights

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