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Cheap flights from St. Louis to Denver
Round-trip
Economy
Flight information for St. Louis to Denver
(STL to DEN)
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Denver
| Best Price Found | $133 | The best flight deal from St. Louis to Denver found on momondo in the last 72 hours is $133 | |
| Fastest flight time | 2h 29m | The fastest flight from St. Louis to Denver takes 2h 29m. | |
| Direct flights | None | There are no direct flights from St. Louis to Denver. Popular non-direct route for this connection is Lambert-St Louis - Denver Intl. | |
| Airports in Denver | 2 airports | There are 2 airports near Denver: Denver Arapahoe Co (APA), Denver Intl (DEN) |
How to get the cheapest flight ticket from St. Louis to Denver
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Denver?
April
The cheapest time of year to fly to Denver from St. Louis is April. Most expensive is December
What is the cheapest day to fly to Denver?
Wednesday
The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday
When is the cheapest time to fly to Denver?
in the evening
St. Louis to Denver flights are approximately 37% more expensive at noon than in the evening
What is the cheapest airline that flies to Denver?
Frontier
Frontier, American Airlines, and Delta are the most popular carriers operating from St. Louis to Denver
What is the cheapest route?
Lambert-St Louis - Denver Intl
Fly from Lambert-St Louis to Denver Intl for the best St. Louis - Denver flight prices
STL
Lambert-St Louis
DEN
Denver Intl
When is the cheapest time to book a flight to Denver?
42 days before
The cheapest time to buy a flight from St. Louis to Denver is approximately 42 days to departure
60
Days before departure
0
Easily compare round-trip flights from St. Louis to Denver
Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Denver by changing tabs
Cheapest
Best
Quickest
Multiple Airlines
Jul 9
STL
Lambert-St Louis
2h 32m
DEN
Denver Intl
Jul 12
DEN
Denver Intl
14h 34m
1 stop
STL
Lambert-St Louis
$132
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Sun Country Air
Jul 17
STL
Lambert-St Louis
17h 51m
1 stop
DEN
Denver Intl
Jul 26
DEN
Denver Intl
14h 34m
1 stop
STL
Lambert-St Louis
$161
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Multiple Airlines
Jul 16
STL
Lambert-St Louis
2h 32m
DEN
Denver Intl
Jul 19
DEN
Denver Intl
14h 34m
1 stop
STL
Lambert-St Louis
$133
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Find the cheapest one-way flights from St. Louis to Denver
If you're looking for one-way flights from St. Louis to Denver, view some of our deals below provided by Sun Country Air
Cheapest
Best
Quickest
Sun Country Air
Jul 17
STL
Lambert-St Louis
17h 51m
1 stop
DEN
Denver Intl
$91
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Multiple Airlines
Jul 14
STL
Lambert-St Louis
21h 59m
3 stops
DEN
Denver Intl
$97
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Delta
Jul 14
STL
Lambert-St Louis
5h 20m
1 stop
DEN
Denver Intl
$103
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Alternative routes for St. Louis to Denver
Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
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