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Cheap flights from Colorado Springs to St. Louis from $176

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 1/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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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
6:40 am - 12:20 pm
COS
-
STL
4h 40m1 stop
Southwest Logo
2:25 pm - 10:00 pm
STL
-
COS
8h 35m1 stop
$283Southwest
Mon, Jan 12 - Thu, Jan 15
Southwest Logo
7:20 am - 4:50 pm
COS
-
STL
8h 30m2 stops
Southwest Logo
2:25 pm - 10:00 pm
STL
-
COS
8h 35m1 stop
$289Southwest
Mon, Jan 12 - Thu, Jan 15
Delta Logo
12:00 pm - 9:35 pm
COS
-
STL
8h 35m1 stop
Delta Logo
6:00 am - 12:22 pm
STL
-
COS
7h 22m1 stop
$291Delta
Tue, Jan 6 - Tue, Jan 13
Delta Logo
12:00 pm - 9:35 pm
COS
-
STL
8h 35m1 stop
Delta Logo
6:00 am - 12:22 pm
STL
-
COS
7h 22m1 stop
$302Delta
Tue, Jan 6 - Mon, Jan 12
Delta Logo
12:00 pm - 11:25 pm
COS
-
STL
10h 25m2 stops
Delta Logo
5:00 pm - 10:23 pm
STL
-
COS
6h 23m1 stop
$307Delta
Wed, Jan 7 - Mon, Jan 12
United Airlines Logo
3:25 pm - 8:45 pm
COS
-
STL
4h 20m1 stop
United Airlines Logo
9:00 am - 2:20 pm
STL
-
COS
6h 20m1 stop
$310United Airlines
Fri, Apr 3 - Sun, Apr 5
United Airlines Logo
1:25 pm - 8:58 pm
COS
-
STL
6h 33m1 stop
United Airlines Logo
6:00 am - 11:26 am
STL
-
COS
6h 26m1 stop
$313United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
1:25 pm - 9:13 pm
COS
-
STL
6h 48m2 stops
United Airlines Logo
6:00 am - 11:26 am
STL
-
COS
6h 26m1 stop
$318United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
1:25 pm - 9:13 pm
COS
-
STL
6h 48m2 stops
United Airlines Logo
11:20 am - 9:58 pm
STL
-
COS
11h 38m2 stops
$323United Airlines
Sat, Jan 17 - Tue, Jan 20
Delta Logo
12:00 pm - 9:35 pm
COS
-
STL
8h 35m1 stop
Delta Logo
6:00 am - 12:22 pm
STL
-
COS
7h 22m1 stop
$329Delta
Tue, Jan 6 - Sun, Jan 11

Southwest flights from Colorado Springs to St. Louis

Our best Southwest deals on Colorado Springs to St. Louis flight tickets
Southwest
Jan 12
COS6:40 amColorado Springs
4h 40m
1 stop
STL12:20 pmLambert-St Louis
Jan 15
STL2:25 pmLambert-St Louis
8h 35m
1 stop
COS10:00 pmColorado Springs
$283
Find similar
Southwest
Jan 12
COS7:20 amColorado Springs
8h 30m
2 stops
STL4:50 pmLambert-St Louis
Jan 15
STL2:25 pmLambert-St Louis
8h 35m
1 stop
COS10:00 pmColorado Springs
$289
Find similar
Southwest
Jan 6
COS7:20 amColorado Springs
8h 30m
2 stops
STL4:50 pmLambert-St Louis
Jan 11
STL9:40 amLambert-St Louis
8h 50m
2 stops
COS5:30 pmColorado Springs
$350
Find similar

Delta flights from Colorado Springs to St. Louis

Our best Delta deals on Colorado Springs to St. Louis flight tickets
Delta
Jan 6
COS12:00 pmColorado Springs
8h 35m
1 stop
STL9:35 pmLambert-St Louis
Jan 13
STL6:00 amLambert-St Louis
7h 22m
1 stop
COS12:22 pmColorado Springs
$291
Find similar
Delta
Jan 6
COS12:00 pmColorado Springs
8h 35m
1 stop
STL9:35 pmLambert-St Louis
Jan 12
STL6:00 amLambert-St Louis
7h 22m
1 stop
COS12:22 pmColorado Springs
$302
Find similar
Delta
Jan 7
COS12:00 pmColorado Springs
10h 25m
2 stops
STL11:25 pmLambert-St Louis
Jan 12
STL5:00 pmLambert-St Louis
6h 23m
1 stop
COS10:23 pmColorado Springs
$307
Find similar

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 December 18, 2025.
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

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Mon 1/12

6:40 am-12:20 pm

1 stop4h 40m

Lambert-St Louis

Thu 1/15

2:25 pm-10:00 pm

1 stop8h 35m

$283

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Mon 1/12

7:20 am-4:50 pm

2 stops8h 30m

Lambert-St Louis

Thu 1/15

2:25 pm-10:00 pm

1 stop8h 35m

$289

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Tue 1/6

12:00 pm-9:35 pm

1 stop8h 35m

Lambert-St Louis

Tue 1/13

6:00 am-12:22 pm

1 stop7h 22m

$291

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Tue 1/6

12:00 pm-9:35 pm

1 stop8h 35m

Lambert-St Louis

Mon 1/12

6:00 am-12:22 pm

1 stop7h 22m

$302

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Wed 1/7

12:00 pm-11:25 pm

2 stops10h 25m

Lambert-St Louis

Mon 1/12

5:00 pm-10:23 pm

1 stop6h 23m

$307

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Fri 4/3

3:25 pm-8:45 pm

1 stop4h 20m

Lambert-St Louis

Sun 4/5

9:00 am-2:20 pm

1 stop6h 20m

$310

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Sat 1/17

1:25 pm-8:58 pm

1 stop6h 33m

Lambert-St Louis

Tue 1/20

6:00 am-11:26 am

1 stop6h 26m

$313

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Sat 1/17

1:25 pm-9:13 pm

2 stops6h 48m

Lambert-St Louis

Tue 1/20

6:00 am-11:26 am

1 stop6h 26m

$318

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Sat 1/17

1:25 pm-9:13 pm

2 stops6h 48m

Lambert-St Louis

Tue 1/20

11:20 am-9:58 pm

2 stops11h 38m

$323

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Tue 1/6

12:00 pm-9:35 pm

1 stop8h 35m

Lambert-St Louis

Sun 1/11

6:00 am-12:22 pm

1 stop7h 22m

$329

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 $283.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Friday when prices can be found for as low as $226. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $319. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Colorado Springs in the morning is the least expensive time of day to depart. momondo users have found prices as low as $256 when looking at flights departing in the morning. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $311 per ticket.

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

As of December 2025, prices for Colorado Springs to St. Louis flights are approximately 29% 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 12m

Direct flights

None
The fastest flight from Colorado Springs to St. Louis takes 4h 12m
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

  • 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 12m.

  • 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
SouthwestPriceFrom $233Free CancellationRating
7.9
4,250 reviews
Search Southwest flights
United AirlinesPriceFrom $266Free CancellationRating
7.4
9,093 reviews
Search United Airlines 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
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
Fenton
Wentzville
St. Peters
Collinsville
Alton
Clayton
Festus
Glencoe
Farmington
Eureka
Edwardsville
Litchfield
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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