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Cheap flights from Colorado Springs to St. Louis from $122

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 8/24. 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
0 bags

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Cheap round-trip flights

Delta Logo
6:00 am - 12:31 pmCOS-STL
5h 31m1 stop
Delta Logo
3:36 pm - 8:39 pmSTL-COS
6h 03m1 stop
$217Delta
Find Deal
Thu, Sep 18 - Mon, Sep 22
American Airlines Logo
4:54 pm - 11:41 pmCOS-STL
5h 47m1 stop
American Airlines Logo
7:54 pm - 11:34 amSTL-COS
16h 40m1 stop
$269American Airlines
Find Deal
Mon, Oct 20 - Fri, Oct 24
American Airlines Logo
12:07 pm - 6:23 pmCOS-STL
5h 16m1 stop
American Airlines Logo
7:23 am - 11:37 amSTL-COS
5h 14m1 stop
$272American Airlines
Find Deal
Wed, Aug 6 - Fri, Aug 8
United Airlines Logo
3:35 pm - 8:45 pmCOS-STL
4h 10m1 stop
United Airlines Logo
5:30 pm - 9:44 pmSTL-COS
5h 14m1 stop
$299United Airlines
Find Deal
Sat, Aug 2 - Sat, Aug 9
American Airlines Logo
4:55 pm - 10:57 pmCOS-STL
5h 02m1 stop
American Airlines Logo
7:38 pm - 11:52 pmSTL-COS
5h 14m1 stop
$302American Airlines
Find Deal
Fri, Jul 25 - Mon, Aug 4
Southwest Logo
6:35 am - 7:35 pmCOS-STL
12h 00m2 stops
Southwest Logo
3:20 pm - 7:10 pmSTL-COS
4h 50m1 stop
$313Southwest
Find Deal
Fri, Jul 25 - Mon, Aug 4
United Airlines Logo
12:50 pm - 8:46 pmCOS-STL
6h 56m1 stop
United Airlines Logo
5:30 pm - 11:50 pmSTL-COS
7h 20m2 stops
$347United Airlines
Find Deal
Thu, Sep 18 - Mon, Sep 22
United Airlines Logo
6:35 pm - 11:59 pmCOS-STL
4h 24m1 stop
United Airlines Logo
6:33 am - 11:08 amSTL-COS
5h 35m1 stop
$387United Airlines
Find Deal
Mon, Jul 21 - Thu, Jul 24
United Airlines Logo
7:00 am - 8:46 pmCOS-STL
12h 46m1 stop
United Airlines Logo
12:25 pm - 8:15 pmSTL-COS
8h 50m2 stops
$390United Airlines
Find Deal
Mon, Oct 20 - Fri, Oct 24
Southwest Logo
6:05 pm - 12:35 amCOS-STL
5h 30m1 stop
Southwest Logo
2:00 pm - 9:45 pmSTL-COS
8h 45m2 stops
$395Southwest
Find Deal
Fri, Jul 18 - Fri, Aug 8

Delta flights from Colorado Springs to St. Louis

Our best Delta deals on Colorado Springs to St. Louis flight tickets
Delta
Sep 18
COS6:00 amColorado Springs
5h 31m
1 stop
STL12:31 pmLambert-St Louis
Sep 22
STL3:36 pmLambert-St Louis
6h 03m
1 stop
COS8:39 pmColorado Springs
Delta
Jul 17
COS5:55 pmColorado Springs
5h 43m
1 stop
STL12:38 amLambert-St Louis
Jul 21
STL3:41 pmLambert-St Louis
6h 42m
1 stop
COS9:23 pmColorado Springs
Delta
Jul 20
COS6:00 amColorado Springs
5h 34m
1 stop
STL12:34 pmLambert-St Louis
Jul 24
STL3:41 pmLambert-St Louis
6h 42m
1 stop
COS9:23 pmColorado Springs

American Airlines flights from Colorado Springs to St. Louis

Our best American Airlines deals on Colorado Springs to St. Louis flight tickets
American Airlines
Oct 20
COS4:54 pmColorado Springs
5h 47m
1 stop
STL11:41 pmLambert-St Louis
Oct 24
STL7:54 pmLambert-St Louis
16h 40m
1 stop
COS11:34 amColorado Springs
American Airlines
Aug 6
COS12:07 pmColorado Springs
5h 16m
1 stop
STL6:23 pmLambert-St Louis
Aug 8
STL7:23 amLambert-St Louis
5h 14m
1 stop
COS11:37 amColorado Springs
American Airlines
Jul 25
COS4:55 pmColorado Springs
5h 02m
1 stop
STL10:57 pmLambert-St Louis
Aug 4
STL7:38 pmLambert-St Louis
5h 14m
1 stop
COS11:52 pmColorado Springs

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, October 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 $286. The month of November is another great option to travel to St. Louis, with average flight prices from Colorado Springs averaging around $300.

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 Wednesday when prices can be found for as low as $224. 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 $321. 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 evening is the least expensive time of day to depart. momondo users have found prices as low as $196 when looking at flights departing in the evening. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $300 per ticket.

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

As of July 2025, prices for Colorado Springs to St. Louis flights are approximately 28% 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

Best Price Found

$122

Fastest flight time

4h 10m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Colorado Springs in the past 72 hours is $122. The best round-trip flight deal from Colorado Springs to St. Louis found on momondo in the last 72 hours is $217.
The fastest flight from Colorado Springs to St. Louis takes 4h 10m
There are no direct flights from Colorado Springs to St. Louis. Popular non-direct route for this connection is Colorado Springs Airport - Lambert-St Louis Airport.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • 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 10m.

  • 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 $260Free CancellationRating
8.0
4,257 reviews
Search Southwest flights
American AirlinesPriceFrom $266Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $266Free CancellationRating
7.4
8,846 reviews
Search United Airlines flights
  • Southwest Flights From Colorado Springs to St. Louis

    Across 1 Southwest flight from Colorado Springs to St. Louis this week, the average price was $371, with the best Southwest deals starting from $260 round-trip. 4,257 users have rated Southwest on momondo, with an average score of 8.0/10.


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
Florissant
Maryland Heights
Collinsville
Fenton
Farmington
O'Fallon
St. Peters
Alton
Wentzville
Glencoe
Festus
Clayton
Eureka
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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1 adult
Sat 7/12
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