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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$28 CHEAP FLIGHTS from Colorado to St. Louis

STL

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$102

Overall average: $179

Frontier

Fri 1/9Mon 1/12

DEN - STL • Non-stop

Cheapest one-way

$28

Typical prices: $67-$408

Frontier

Wed 1/7

DEN - STL • Non-stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to St. Louis!

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.

Round-trip

One-way

Last minute

Direct

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

Fri, Jan 9 - Mon, Jan 12

6:50 am - 10:02 am

DEN

STL

2h 12mnonstop

7:43 pm - 9:15 pm

STL

DEN

2h 32mnonstop

$102Frontier

Fri, Jan 9 - Mon, Jan 12

6:50 am - 10:02 am

DEN

STL

2h 12mnonstop

7:43 pm - 9:15 pm

STL

DEN

2h 32mnonstop

$104Frontier

Wed, Jan 7 - Thu, Jan 8

6:50 am - 10:02 am

DEN

STL

2h 12mnonstop

3:43 pm - 9:38 pm

STL

DEN

6h 55m1 stop

$109Frontier

Fri, Jan 9 - Mon, Jan 12

11:29 am - 4:55 pm

GJT

STL

4h 26m1 stop

4:15 pm - 10:27 pm

STL

GJT

7h 12m1 stop

$211United Airlines

Thu, Feb 19 - Tue, Feb 24

1:43 pm - 10:59 pm

GJT

STL

8h 16m2 stops

8:41 am - 12:47 pm

STL

GJT

5h 06m1 stop

$216United Airlines

Thu, Feb 12 - Sun, Feb 15

12:30 pm - 7:25 pm

EGE

STL

5h 55m1 stop

6:00 am - 10:09 am

STL

EGE

5h 09m1 stop

$229American Airlines

Sun, Jan 18 - Thu, Jan 22

2:05 pm - 11:39 pm

MTJ

STL

8h 34m1 stop

7:10 am - 1:08 pm

STL

MTJ

6h 58m1 stop

$258Delta

Thu, Feb 12 - Sun, Feb 15

12:30 pm - 7:25 pm

EGE

STL

5h 55m1 stop

6:00 am - 3:34 pm

STL

EGE

10h 34m2 stops

$289American Airlines

Sun, Jan 18 - Thu, Jan 22

12:40 pm - 8:35 pm

MTJ

STL

6h 55m2 stops

6:20 am - 12:00 pm

STL

MTJ

6h 40m1 stop

$336Southwest

Fri, Apr 10 - Sun, Apr 12

10:35 am - 6:45 pm

COS

STL

7h 10m1 stop

6:15 am - 9:20 am

STL

COS

4h 05m1 stop

$357Southwest

Useful Info

Low season	January
High season	May
Cheapest flight	$28

Best time to beat the crowds with an average 9% drop in price.

Flight from Denver 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.

O'Fallon

Wentzville

Farmington

Eureka

Litchfield

Grafton

Shrewsbury

Glencoe

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

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

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

St. Louis (STL)

STL

$28 Find Cheap Flights from Colorado to St. Louis

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

Everything you should know

Cheap Flights from Colorado to St. Louis

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

Recent one-way flight deals from Colorado to St. Louis

Recent last minute flight deals from Colorado to St. Louis

Recent direct flight deals from Colorado to St. Louis

Good to know

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?

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

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

Cabin class types available on flights to Colorado

Complete your trip to St. Louis with a hotel stay or car rental

Find direct flights for St. Louis

Flights to other popular destinations

Flights from domestic origins to St. Louis

Choose which airport to fly into in St. Louis

Find deals for your return flight