St. Louis

$109+ Cheap flights from Colorado Springs to St. Louis (COS - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
COS — STL
Nov 22 — Nov 291
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Cheap flight deals from Colorado Springs to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Colorado Springs (COS) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$201
(United Airlines)

One-way from

$109
(Delta)

Popular in

August

Cheapest in

September

Average price

$372
Provider with most accurate pricing for Colorado Springs-Lambert-St Louis flight deals.
Provider most trusted by Cheapflights users for Colorado Springs-Lambert-St Louis flights.
From Colorado Springs to Lambert-St Louis
One-way flight from Colorado Springs to Lambert-St Louis
Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
Average for round-trip flights in October 2025

Find flight deals from Colorado Springs to St. Louis

Cheapest flights from Colorado Springs to St. Louis
Explore the most affordable flight options available from Colorado Springs to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/172:25 pmCOS - STL
1 stop6h 10mSouthwest
Fri 11/215:35 pmSTL - COS
1 stop6h 05mSouthwest
Deal found 10/23$333
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:35 pmCOS - STL
1 stop3h 55mSouthwest
Fri 11/285:25 amSTL - COS
1 stop7h 00mSouthwest
Deal found 10/22$357
This Southwest deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1310:05 amCOS - STL
1 stop8h 15mSouthwest
Mon 11/171:45 pmSTL - COS
1 stop3h 50mSouthwest
Deal found 10/20$362
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/75:30 amCOS - STL
1 stop8h 35mSouthwest
Tue 11/111:45 pmSTL - COS
1 stop3h 50mSouthwest
Deal found 10/23$402
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:00 amCOS - STL
1 stop5h 35mDelta
Sun 11/97:05 amSTL - COS
1 stop6h 32mDelta
Deal found 10/23$407
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:00 amCOS - STL
2 stops7h 24mUnited Airlines
Sun 11/96:15 amSTL - COS
1 stop6h 12mUnited Airlines
Deal found 10/23$412

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated October 23, 2025.
Use the filters below to find and compare flights from Colorado Springs to St. Louis that are best for you.

Fly from

Colorado Springs

Fly to

St. Louis

Route

Depart

Return

Price

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Thu 1/8

7:00 am-1:16 pm

1 stop5h 16m

Lambert-St Louis

Sun 1/11

8:45 am-12:22 pm

1 stop4h 37m

$201

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Thu 1/8

8:00 am-4:50 pm

2 stops7h 50m

Lambert-St Louis

Sun 1/11

7:30 am-1:05 pm

1 stop6h 35m

$299

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Mon 11/17

2:25 pm-9:35 pm

1 stop6h 10m

Lambert-St Louis

Fri 11/21

5:35 pm-10:40 pm

1 stop6h 05m

$333

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Mon 11/24

6:35 pm-11:30 pm

1 stop3h 55m

Lambert-St Louis

Fri 11/28

5:25 am-11:25 am

1 stop7h 00m

$357

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Thu 11/13

7:10 am-2:30 pm

2 stops6h 20m

Lambert-St Louis

Mon 11/17

1:45 pm-4:35 pm

1 stop3h 50m

$368

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Fri 11/7

5:30 am-3:05 pm

1 stop8h 35m

Lambert-St Louis

Tue 11/11

1:45 pm-4:35 pm

1 stop3h 50m

$402

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Fri 11/7

10:28 am-4:27 pm

1 stop4h 59m

Lambert-St Louis

Tue 11/11

5:17 am-9:53 am

1 stop5h 36m

$407

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Thu 11/6

5:49 pm-12:24 am

1 stop5h 35m

Lambert-St Louis

Mon 11/10

6:00 am-12:37 pm

1 stop7h 37m

$407

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Thu 11/6

6:00 am-2:24 pm

2 stops7h 24m

Lambert-St Louis

Sun 11/9

6:15 am-11:27 am

1 stop6h 12m

$412

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

Thu 11/13

6:00 am-1:00 pm

1 stop6h 00m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/23

Showing 1-10 of 17 results
1
2

Compare providers for flights from Colorado Springs to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Colorado Springs to St. Louis in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Colorado Springs-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Colorado Springs-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Colorado Springs-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Colorado Springs-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Colorado Springs-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Colorado Springs to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Colorado Springs with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Colorado Springs to St. Louis

What is the cheapest month to book a flight from Colorado Springs to St. Louis?

Currently, February is the cheapest month in which you can book a flight from Colorado Springs to St. Louis (average of $37). Flying from Colorado Springs to St. Louis in July is currently the most expensive (average of $126). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated October 23, 2025.
Read through reviews of airlines operating flights from Colorado Springs to St. Louis, such as Southwest and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Entertainment

7.5

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Colorado Springs to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Colorado Springs to St. Louis?

    For as low as $201, United Airlines can have you in St. Louis from Colorado Springs in 5h 16m. There are 771 mi between Colorado Springs and St. Louis. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Colorado Springs to St. Louis round-trip?

    Our cheapest airline available from Colorado Springs to St. Louis is Southwest. Our recent data shows that you can find tickets from as low as $234 on this airline. An additional option worth looking into is United Airlines, starting at $266. Southwest is currently priced 38% below the average price you’ll pay for this route.

  • Can I find deals for flights from Colorado Springs to St. Louis that include hotel bookings?

    Yes. In addition to deals on Colorado Springs to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado Springs to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado Springs to St. Louis.

  • Can I find deals for business class flights from Colorado Springs to St. Louis?

    Yes. Cheapflights offers flight deals from Colorado Springs to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado Springs to St. Louis?

    Currently, February is the cheapest month in which you can book a flight from Colorado Springs to St. Louis (average of $37). Flying from Colorado Springs to St. Louis in July is currently the most expensive (average of $126). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Top 2 airlines flying from Colorado Springs to St. Louis

Discover the top 2 airlines that operate flights from Colorado Springs to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$234Average$388FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$266Average$355FlexibilityNo cancel feeOn-time69%

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