You know where to go
Select an airport in the search form
You don't know where to go
See where you can go on your budget
Cheap flights from Denver to St. Louis
Round-trip
Economy
Flight information for Denver to St. Louis
(DEN to STL)
Find info about flight duration, direct flights, and airports for your flight from Denver to St. Louis
| Best Price Found | $97 | The best flight deal from Denver to St. Louis found on momondo in the last 72 hours is $97 | |
| Fastest flight time | 2h 1m | The fastest flight from Denver to St. Louis takes 2h 1m. | |
| Direct flights | We | Direct flights go from Denver to St. Louis on Wednesday. Airline offering direct flights is Frontier.. | |
| Airports in St. Louis | 1 airport | There is 1 airport near St. Louis: Lambert-St Louis (STL) |
How to get the cheapest flight ticket from Denver to St. Louis
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 St. Louis?
January
The cheapest time of year to fly to St. Louis from Denver is January. Most expensive is December
What is the cheapest day to fly to St. Louis?
Saturday
The cheapest day of the week is typically Saturday. The most expensive is typically Monday
When is the cheapest time to fly to St. Louis?
in the evening
Denver to St. Louis flights are approximately 37% more expensive in the afternoon than in the evening
What is the cheapest airline that flies to St. Louis?
Frontier
Frontier, Sun Country Air, and American Airlines are the most popular carriers operating from Denver to St. Louis
What is the cheapest route?
Denver Intl - Lambert-St Louis
Fly from Denver Intl to Lambert-St Louis for the best Denver - St. Louis flight prices
DEN
Denver Intl
STL
Lambert-St Louis
When is the cheapest time to book a flight to St. Louis?
48 days before
The cheapest time to buy a flight from Denver to St. Louis is approximately 48 days to departure
60
Days before departure
0
Easily compare round-trip flights from Denver to St. Louis
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 Denver to St. Louis by changing tabs
Cheapest
Best
Quickest
Sun Country Air
Nov 5
DEN
Denver Intl
5h 23m
1 stop
STL
Lambert-St Louis
Nov 8
STL
Lambert-St Louis
17h 46m
1 stop
DEN
Denver Intl
$90
Find similar
Multiple Airlines
Oct 16
DEN
Denver Intl
2h 00m
STL
Lambert-St Louis
Oct 19
STL
Lambert-St Louis
2h 27m
DEN
Denver Intl
$97
Find similar
Multiple Airlines
Nov 5
DEN
Denver Intl
5h 23m
1 stop
STL
Lambert-St Louis
Nov 9
STL
Lambert-St Louis
2h 47m
DEN
Denver Intl
$98
Find similar
Find the cheapest one-way flights from Denver to St. Louis
If you're looking for one-way flights from Denver to St. Louis, view some of our deals below provided by Sun Country Air and Delta
Cheapest
Best
Quickest
Sun Country Air
Oct 8
DEN
Denver Intl
5h 24m
1 stop
STL
Lambert-St Louis
$50
Find similar
Multiple Airlines
Oct 14
DEN
Denver Intl
19h 19m
1 stop
STL
Lambert-St Louis
$53
Find similar
Delta
Oct 3
DEN
Denver Intl
6h 39m
1 stop
STL
Lambert-St Louis
$79
Find similar