STL

$106 Find Cheap Flights from Colorado to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Colorado to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Colorado to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Colorado to St. Louis

Sat, Aug 15 - Mon, Aug 17
Frontier Logo
4:10 pm - 7:23 pm
DEN
-
STL
2h 13mnonstop
Frontier Logo
8:08 pm - 9:44 pm
STL
-
DEN
2h 36mnonstop
$166Frontier
Tue, Aug 18 - Sat, Aug 22
Frontier Logo
4:12 pm - 7:23 pm
DEN
-
STL
2h 11mnonstop
Frontier Logo
8:08 pm - 9:44 pm
STL
-
DEN
2h 36mnonstop
$167Frontier
Tue, Jul 28 - Tue, Aug 4
Frontier Logo
4:10 pm - 7:23 pm
DEN
-
STL
2h 13mnonstop
Frontier Logo
3:41 pm - 10:55 pm
STL
-
DEN
8h 14m
1 stop
$168Frontier
Tue, Jul 14 - Tue, Jul 21
Southwest Logo
6:10 pm - 11:45 pm
COS
-
STL
4h 35m
1 stop
Southwest Logo
5:35 am - 10:35 am
STL
-
COS
6h 00m
1 stop
$225Southwest
Tue, Sep 15 - Tue, Sep 29
Southwest Logo
4:15 pm - 9:10 pm
COS
-
STL
3h 55m
1 stop
Southwest Logo
3:45 pm - 9:45 pm
STL
-
COS
7h 00m
2 stops
$230Southwest
Tue, Jul 7 - Mon, Jul 13
Multiple Airlines Logo
12:53 pm - 6:05 pm
GJT
-
STL
28h 12m
1 stop
Multiple Airlines Logo
7:10 pm - 12:13 pm
STL
-
GJT
18h 03m
1 stop
$278Multiple Airlines
Wed, Sep 23 - Mon, Sep 28
United Airlines Logo
3:12 pm - 8:38 pm
GJT
-
STL
4h 26m
1 stop
United Airlines Logo
5:10 am - 8:49 am
STL
-
GJT
4h 39m
1 stop
$299United Airlines
Wed, Sep 23 - Mon, Sep 28
United Airlines Logo
1:40 pm - 10:59 pm
GJT
-
STL
8h 19m
2 stops
United Airlines Logo
5:10 am - 8:49 am
STL
-
GJT
4h 39m
1 stop
$304United Airlines
Thu, Jul 2 - Tue, Jul 7
American Airlines Logo
4:55 pm - 11:52 pm
GJT
-
STL
5h 57m
1 stop
American Airlines Logo
5:32 am - 10:26 am
STL
-
GJT
5h 54m
1 stop
$314American Airlines
Wed, Jul 8 - Wed, Jul 15
American Airlines Logo
5:15 pm - 11:58 pm
COS
-
STL
5h 43m
1 stop
American Airlines Logo
5:32 am - 9:52 am
STL
-
COS
5h 20m
1 stop
$323American Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$106
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Denver to St. Louis

FAQs for booking flights from Colorado to St. Louis

  • How does KAYAK find such low prices on flights from Colorado to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Colorado is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colorado to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Colorado with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
Litchfield
Grafton
Shrewsbury
Glencoe

Everything you need to know for your flight to St. Louis

Information on the airport you'll fly into in St. Louis

St. Louis (STL)