Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Denver from $184

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Denver departing on 11/24. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:00 am - 12:36 pmSTL-COS
7h 36m1 stop
Delta Logo
1:42 pm - 9:02 pmCOS-STL
6h 20m1 stop
$281Delta
Find Deal
Thu, Dec 11 - Mon, Dec 15
Delta Logo
6:00 am - 12:36 pmSTL-COS
7h 36m1 stop
Delta Logo
6:00 pm - 8:24 amCOS-STL
13h 24m2 stops
$286Delta
Find Deal
Thu, Dec 11 - Mon, Dec 15
United Airlines Logo
5:27 pm - 9:57 pmSTL-COS
5h 30m1 stop
United Airlines Logo
10:24 am - 4:28 pmCOS-STL
5h 04m1 stop
$287United Airlines
Find Deal
Mon, Dec 8 - Fri, Dec 12
Delta Logo
9:00 am - 5:19 pmSTL-COS
9h 19m2 stops
Delta Logo
8:10 am - 9:57 pmCOS-STL
12h 47m2 stops
$291Delta
Find Deal
Wed, Dec 3 - Tue, Dec 9
United Airlines Logo
3:19 pm - 9:59 pmSTL-COS
7h 40m2 stops
United Airlines Logo
3:33 pm - 8:57 pmCOS-STL
4h 24m1 stop
$292United Airlines
Find Deal
Mon, Dec 8 - Fri, Dec 12
Delta Logo
6:00 am - 1:05 pmSTL-COS
8h 05m1 stop
Delta Logo
1:40 pm - 8:39 pmCOS-STL
5h 59m1 stop
$293Delta
Find Deal
Tue, Apr 7 - Wed, Apr 8
American Airlines Logo
5:14 am - 9:47 amSTL-COS
5h 33m1 stop
American Airlines Logo
12:38 pm - 7:22 pmCOS-STL
5h 44m1 stop
$313American Airlines
Find Deal
Fri, Dec 12 - Thu, Dec 18
Southwest Logo
1:45 pm - 8:25 pmSTL-COS
7h 40m2 stops
Southwest Logo
12:00 pm - 7:20 pmCOS-STL
6h 20m2 stops
$350Southwest
Find Deal
Mon, Dec 8 - Fri, Dec 12
Southwest Logo
3:50 pm - 11:10 pmSTL-COS
8h 20m2 stops
Southwest Logo
6:35 pm - 11:30 pmCOS-STL
3h 55m1 stop
$355Southwest
Find Deal
Fri, Dec 12 - Thu, Dec 18
American Airlines Logo
8:40 am - 8:27 pmSTL-COS
12h 47m2 stops
American Airlines Logo
12:45 pm - 8:56 amCOS-STL
19h 11m1 stop
$916American Airlines
Find Deal
Fri, Nov 28 - Sun, Nov 30

Delta flights from St. Louis to Colorado Springs

Our best Delta deals on St. Louis to Colorado Springs flight tickets
Delta
Dec 11
STL6:00 amLambert-St Louis
7h 36m
1 stop
COS12:36 pmColorado Springs
Dec 15
COS1:42 pmColorado Springs
6h 20m
1 stop
STL9:02 pmLambert-St Louis
$281
Find similar
Delta
Dec 11
STL6:00 amLambert-St Louis
7h 36m
1 stop
COS12:36 pmColorado Springs
Dec 15
COS6:00 pmColorado Springs
13h 24m
2 stops
STL8:24 amLambert-St Louis
$286
Find similar
Delta
Dec 3
STL9:00 amLambert-St Louis
9h 19m
2 stops
COS5:19 pmColorado Springs
Dec 9
COS8:10 amColorado Springs
12h 47m
2 stops
STL9:57 pmLambert-St Louis
$291
Find similar

United Airlines flights from St. Louis to Colorado Springs

Our best United Airlines deals on St. Louis to Colorado Springs flight tickets
United Airlines
Dec 8
STL5:27 pmLambert-St Louis
5h 30m
1 stop
COS9:57 pmColorado Springs
Dec 12
COS10:24 amColorado Springs
5h 04m
1 stop
STL4:28 pmLambert-St Louis
$287
Find similar
United Airlines
Dec 8
STL3:19 pmLambert-St Louis
7h 40m
2 stops
COS9:59 pmColorado Springs
Dec 12
COS3:33 pmColorado Springs
4h 24m
1 stop
STL8:57 pmLambert-St Louis
$292
Find similar
United Airlines
Jan 12
STL11:20 amLambert-St Louis
8h 43m
2 stops
COS7:03 pmColorado Springs
Jan 16
COS1:25 pmColorado Springs
8h 33m
2 stops
STL10:58 pmLambert-St Louis
$297
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Colorado Springs 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 October 30, 2025.
Use the filters below to find and compare flights from St. Louis to Colorado Springs that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Thu 12/11

6:00 am-12:36 pm

1 stop7h 36m

Colorado Springs

Mon 12/15

1:42 pm-9:02 pm

1 stop6h 20m

$281

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Thu 12/11

6:00 am-12:36 pm

1 stop7h 36m

Colorado Springs

Mon 12/15

6:00 pm-8:24 am

2 stops13h 24m

$286

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Mon 12/8

5:27 pm-9:57 pm

1 stop5h 30m

Colorado Springs

Fri 12/12

10:24 am-4:28 pm

1 stop5h 04m

$287

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Wed 12/3

9:00 am-5:19 pm

2 stops9h 19m

Colorado Springs

Tue 12/9

8:10 am-9:57 pm

2 stops12h 47m

$291

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Mon 12/8

3:19 pm-9:59 pm

2 stops7h 40m

Colorado Springs

Fri 12/12

3:33 pm-8:57 pm

1 stop4h 24m

$292

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Tue 4/7

6:00 am-1:05 pm

1 stop8h 05m

Colorado Springs

Wed 4/8

1:40 pm-8:39 pm

1 stop5h 59m

$293

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Fri 12/12

5:14 am-9:47 am

1 stop5h 33m

Colorado Springs

Thu 12/18

12:38 pm-7:22 pm

1 stop5h 44m

$313

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Mon 12/8

1:45 pm-8:25 pm

2 stops7h 40m

Colorado Springs

Fri 12/12

12:00 pm-7:20 pm

2 stops6h 20m

$350

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Fri 12/12

3:50 pm-11:10 pm

2 stops8h 20m

Colorado Springs

Thu 12/18

6:35 pm-11:30 pm

1 stop3h 55m

$355

St. LouisColorado Springs

STL - COS

STLCOS

Lambert-St Louis

Fri 11/28

8:40 am-8:27 pm

2 stops12h 47m

Colorado Springs

Sun 11/30

12:45 pm-8:56 am

1 stop19h 11m

$916

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

See travel insights to Denver from

How to get the cheapest flight ticket from St. Louis to Colorado Springs

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 Colorado Springs?

The month of February is another great option to travel to Colorado Springs, with average flight prices from St. Louis averaging around $326.

What is the cheapest day to depart on your flight to Colorado Springs?

The cheapest day to depart from St. Louis to Colorado Springs is on a Wednesday when prices can be found for as low as $346. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Colorado Springs for around $455.

What is the cheapest time of day to depart on your flight to Colorado Springs?

Flying to Colorado Springs from St. Louis at noon is the least expensive time of day to depart. momondo users have found prices as low as $349 when looking at flights departing at noon. Flights to Colorado Springs are more costly in the afternoon, with an average ticket price of $426. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Colorado Springs?

You are more likely to see cheaper flights to Colorado Springs from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado Springs for around $372 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado Springs from St. Louis for as low as $315 on momondo.

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

As of October 2025, prices for St. Louis to Colorado Springs flights are approximately 54% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Colorado Springs

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

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

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

Direct flights

None
There are no direct flights from St. Louis to Colorado Springs. There are no popular flight routes from St. Louis to Colorado Springs.
Search flight deals

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

    A flight from Lambert-St Louis to Colorado Springs will travel around 786.9 mi. In terms of flight time, this usually takes a little over 4h 22m.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Colorado Springs Airport.

  • What documentation or ID do you need to fly to Colorado Springs Airport?

    The travel and health documents required for your trip to Colorado Springs Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Colorado Springs Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from St. Louis to Colorado Springs

Compare and see reviews for airlines that fly from St. Louis to Colorado Springs with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $236Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights
DeltaPriceFrom $271Free CancellationRating
7.9
7,998 reviews
Search Delta flights
United AirlinesPriceFrom $276Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
SouthwestPriceFrom $291Free CancellationRating
8.0
4,243 reviews
Search Southwest flights

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Cañon City

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Colorado Springs for you.

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

Flights from St. Louis to Colorado Springs 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 St. Louis to Colorado Springs?

momondo provides multiple filters to help you find the best flight to Colorado Springs from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Colorado Springs from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Colorado Springs trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 11/29
Sat 12/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States