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Cheap flights from Colorado Springs to St. Louis from $167

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado Springs to St. Louis departing on 8/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado Springs to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
1:15 pm - 9:45 pm
COS
-
STL
7h 30m
1 stop
Southwest Logo
6:30 am - 9:45 am
STL
-
COS
4h 15m
1 stop
$333Southwest
Tue, Sep 22 - Tue, Oct 6
Southwest Logo
4:20 pm - 12:35 am
COS
-
STL
7h 15m
1 stop
Southwest Logo
5:10 am - 10:15 am
STL
-
COS
6h 05m
1 stop
$333Southwest
Thu, Oct 22 - Thu, Oct 29
American Airlines Logo
8:07 am - 2:44 pm
COS
-
STL
5h 37m
1 stop
American Airlines Logo
8:48 am - 3:00 pm
STL
-
COS
7h 12m
1 stop
$333American Airlines
Tue, Sep 22 - Wed, Oct 7
Southwest Logo
5:30 am - 12:20 pm
COS
-
STL
5h 50m
1 stop
Southwest Logo
6:40 pm - 9:55 pm
STL
-
COS
4h 15m
1 stop
$333Southwest
Thu, Oct 22 - Mon, Oct 26
American Airlines Logo
7:57 am - 2:30 pm
COS
-
STL
5h 33m
1 stop
American Airlines Logo
5:00 am - 12:56 pm
STL
-
COS
8h 56m
1 stop
$336American Airlines
Fri, Oct 30 - Sat, Oct 31
American Airlines Logo
12:46 pm - 9:08 pm
COS
-
STL
7h 22m
1 stop
American Airlines Logo
12:46 pm - 4:51 pm
STL
-
COS
5h 05m
1 stop
$338American Airlines
Fri, Oct 30 - Sat, Oct 31
Southwest Logo
7:20 am - 1:15 pm
COS
-
STL
4h 55m
1 stop
Southwest Logo
1:25 pm - 7:50 pm
STL
-
COS
7h 25m
2 stops
$338Southwest
Tue, Sep 22 - Tue, Oct 6
United Airlines Logo
5:44 am - 12:11 pm
COS
-
STL
5h 27m
1 stop
United Airlines Logo
5:10 am - 8:40 am
STL
-
COS
4h 30m
1 stop
$395United Airlines
Sat, Aug 8 - Sat, Aug 15
United Airlines Logo
6:00 am - 12:40 pm
COS
-
STL
5h 40m
1 stop
United Airlines Logo
1:40 pm - 5:35 pm
STL
-
COS
4h 55m
1 stop
$413United Airlines
Sat, Oct 24 - Wed, Oct 28
United Airlines Logo
7:40 am - 2:10 pm
COS
-
STL
5h 30m
1 stop
United Airlines Logo
8:30 am - 5:35 pm
STL
-
COS
10h 05m
2 stops
$418United Airlines
Sat, Oct 24 - Wed, Oct 28

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United Airlines flights from Colorado Springs to St. Louis

Our best United Airlines deals on Colorado Springs to St. Louis flight tickets
United Airlines
Aug 8
COS5:44 amColorado Springs
5h 27m
1 stop
STL12:11 pmLambert-St Louis
Aug 15
STL5:10 amLambert-St Louis
4h 30m
1 stop
COS8:40 amColorado Springs
$395
United Airlines
Oct 24
COS6:00 amColorado Springs
5h 40m
1 stop
STL12:40 pmLambert-St Louis
Oct 28
STL1:40 pmLambert-St Louis
4h 55m
1 stop
COS5:35 pmColorado Springs
$413
United Airlines
Oct 24
COS7:40 amColorado Springs
5h 30m
1 stop
STL2:10 pmLambert-St Louis
Oct 28
STL8:30 amLambert-St Louis
10h 05m
2 stops
COS5:35 pmColorado Springs
$418

Southwest flights from Colorado Springs to St. Louis

Our best Southwest deals on Colorado Springs to St. Louis flight tickets
Southwest
Sep 22
COS1:15 pmColorado Springs
7h 30m
1 stop
STL9:45 pmLambert-St Louis
Oct 6
STL6:30 amLambert-St Louis
4h 15m
1 stop
COS9:45 amColorado Springs
$333
Southwest
Sep 22
COS7:20 amColorado Springs
4h 55m
1 stop
STL1:15 pmLambert-St Louis
Oct 6
STL1:25 pmLambert-St Louis
7h 25m
2 stops
COS7:50 pmColorado Springs
$338
Southwest
Oct 22
COS5:00 pmColorado Springs
6h 35m
2 stops
STL12:35 amLambert-St Louis
Oct 29
STL6:00 amLambert-St Louis
10h 40m
2 stops
COS3:40 pmColorado Springs
$343

momondo Fare Finder

 
Customize your flight search to find flights from Colorado Springs to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 28, 2026.
Use the filters below to find and compare flights from Colorado Springs to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Tue 9/22

1:15 pm-9:45 pm

1 stop7h 30m

Lambert-St Louis

Tue 10/6

6:30 am-9:45 am

1 stop4h 15m

$333

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Thu 10/22

4:20 pm-12:35 am

1 stop7h 15m

Lambert-St Louis

Thu 10/29

5:10 am-10:15 am

1 stop6h 05m

$333

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Tue 9/22

8:07 am-2:44 pm

1 stop5h 37m

Lambert-St Louis

Wed 10/7

8:48 am-3:00 pm

1 stop7h 12m

$333

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Thu 10/22

5:30 am-12:20 pm

1 stop5h 50m

Lambert-St Louis

Mon 10/26

6:40 pm-9:55 pm

1 stop4h 15m

$333

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Fri 10/30

7:57 am-2:30 pm

1 stop5h 33m

Lambert-St Louis

Sat 10/31

5:00 am-12:56 pm

1 stop8h 56m

$336

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Fri 10/30

12:46 pm-9:08 pm

1 stop7h 22m

Lambert-St Louis

Sat 10/31

12:46 pm-4:51 pm

1 stop5h 05m

$338

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Tue 9/22

7:20 am-1:15 pm

1 stop4h 55m

Lambert-St Louis

Tue 10/6

1:25 pm-7:50 pm

2 stops7h 25m

$338
Quickest round-trip

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Sat 8/8

5:44 am-12:11 pm

1 stop5h 27m

Lambert-St Louis

Sat 8/15

5:10 am-8:40 am

1 stop4h 30m

$395

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Sat 10/24

6:00 am-12:40 pm

1 stop5h 40m

Lambert-St Louis

Wed 10/28

1:40 pm-5:35 pm

1 stop4h 55m

$413

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Sat 10/24

7:40 am-2:10 pm

1 stop5h 30m

Lambert-St Louis

Wed 10/28

8:30 am-5:35 pm

2 stops10h 05m

$418

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Colorado Springs 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?

In general, November is the cheapest month to fly from Colorado Springs to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $281. The month of September is another great option to travel to St. Louis, with average flight prices from Colorado Springs averaging around $356.

How have Colorado Springs to St. Louis flight prices changed over time?

As of July 2026, prices for Colorado Springs to St. Louis flights are approximately 15% cheaper when compared to flights at the same time last year.

When to book flights from Colorado Springs to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Colorado Springs to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Colorado Springs to St. Louis (COS to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado Springs to St. Louis

Fastest flight time

4h 35m

Direct flights

None
The fastest flight from Colorado Springs to St. Louis takes 4h 35m
There are no direct flights from Colorado Springs to St. Louis. There are no popular flight routes from Colorado Springs to St. Louis.
Search flight deals

Frequently asked questions about flying from Colorado Springs to St. Louis

  • How far is Colorado Springs to Lambert-St Louis by plane?

    A flight from Colorado Springs to Lambert-St Louis will travel around 786.9 mi. A reasonable flight in good conditions will take 4h 35m.

  • When did momondo last update prices for flights from Colorado Springs Airport to Lambert-St Louis Airport?

    Prices for flights from Colorado Springs Airport to Lambert-St Louis Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Colorado Springs Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Colorado Springs Airport to Lambert-St Louis Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Colorado Springs Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Colorado Springs to St. Louis?

Best airlines flying from Colorado Springs to St. Louis

Compare and see reviews for airlines that fly from Colorado Springs to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $271Free CancellationRating
7.4
10,052 reviews
Search United Airlines flights
SouthwestPriceFrom $332Free CancellationRating
8.0
4,228 reviews
Search Southwest flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
St. Peters
Maryland Heights
Florissant
Collinsville
O'Fallon
Alton
Fenton
Farmington
Clayton
Wentzville
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Colorado Springs to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Colorado Springs to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Colorado Springs to St. Louis with flexible booking policies on momondo?

Flights from Colorado Springs to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Colorado Springs to St. Louis?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Colorado Springs to St. Louis.

I’m not ready to book a flight from Colorado Springs to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Colorado Springs to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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