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 United Airlines. Our recent data shows that you can find tickets from as low as $243 on this airline. Additional options worth looking into are Delta and Southwest, starting at $297 and $305 round-trip. United Airlines is currently priced 33% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Colorado Springs to St. Louis one-way?

For one-way options, check prices for Delta. According to our data, you can fly for as low as $152. Users have also found prices from $192 and $424 on Southwest and United Airlines, respectively.

What is the cheapest day to fly from Colorado Springs to St. Louis?

Travelers seeking maximum savings on their Colorado Springs to St. Louis flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Colorado Springs to St. Louis?

American Airlines, United Airlines and Southwest are the most popular airlines when flying from Colorado Springs to St. Louis.

What is the cheapest day to fly round-trip from Colorado Springs to St. Louis?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 77% on your flight compared to booking on days when demand is much higher.

What is the cheapest month to fly from Colorado Springs to St. Louis?

May is one of the best times of the year to fly to St. Louis from Colorado Springs. Prices for May average $367 per person but you can even find prices for as low as $253. The most expensive prices can be found in the month of July. Opting for a May flight can save you 20% on your journey compared to booking in July

What is the cheapest time of day to fly from COS to STL?

It’s typically best to fly out from Colorado Springs to St. Louis in the morning. Doing so could potentially save you 18% on the flight price compared to flying in the afternoon, which is usually more expensive.

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.

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.

$152+ Flights from Colorado Springs to St. Louis

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1. Tell us where you want to go

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Cheap flight deals from Colorado Springs to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$243 (United Airlines)
One-way from	$152 (Delta)
Popular in	July
Cheapest in	May
Average price	$426

Provider with most accurate pricing for Colorado Springs-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for Colorado Springs-Lambert-St Louis flights.

Search Deals

From Colorado Springs to Lambert-St Louis

Search Deals

One-way flight from Colorado Springs to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($24 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 abril 11, 2025.

mar. 5/63:40 pmCOS - STL

1 stop4h 21mUnited Airlines

mié. 5/145:20 amSTL - COS

1 stop4h 24mUnited Airlines

Deal found 4/10

$243

mar. 7/12:28 pmCOS - STL

1 stop8h 23mDelta

jue. 7/106:30 amSTL - COS

1 stop5h 14mDelta

Deal found 4/10

$297

mar. 5/610:45 amCOS - STL

2 stops8h 15mSouthwest

mié. 5/142:20 pmSTL - COS

2 stops8h 40mSouthwest

Deal found 4/10

$305

mié. 4/2312:41 pmCOS - STL

1 stop5h 48mAmerican Airlines

sáb. 4/265:26 amSTL - COS

1 stop5h 26mAmerican Airlines

Deal found 4/10

$437

Best flights from Colorado Springs to St. Louis
Discover carefully curated flight deals from Colorado Springs to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated abril 11, 2025.

mar. 5/63:40 pmCOS - STL

1 stop4h 21mUnited Airlines

mié. 5/145:20 amSTL - COS

1 stop4h 24mUnited Airlines

Deal found 4/10

$243

mar. 7/12:28 pmCOS - STL

1 stop8h 23mDelta

jue. 7/106:30 amSTL - COS

1 stop5h 14mDelta

Deal found 4/10

$297

mar. 5/610:45 amCOS - STL

2 stops8h 15mSouthwest

mié. 5/142:20 pmSTL - COS

2 stops8h 40mSouthwest

Deal found 4/10

$305

mié. 4/2312:41 pmCOS - STL

1 stop5h 48mAmerican Airlines

sáb. 4/265:26 amSTL - COS

1 stop5h 26mAmerican Airlines

Deal found 4/10

$437

Last-minute flights from Colorado Springs to St. Louis
Discover last-minute flight deals from Colorado Springs to St. Louis. Data last updated abril 11, 2025 and is based on user searches.

mié. 4/2312:41 pmCOS - STL

1 stop5h 48mAmerican Airlines

sáb. 4/265:26 amSTL - COS

1 stop5h 26mAmerican Airlines

Deal found 4/10

$437

vie. 4/251:41 pmCOS - STL

1 stop5h 58mDelta

lun. 4/284:05 pmSTL - COS

1 stop6h 00mDelta

Deal found 4/10

$387

mar. 5/63:40 pmCOS - STL

1 stop4h 21mUnited Airlines

mié. 5/145:20 amSTL - COS

1 stop4h 24mUnited Airlines

Deal found 4/10

$243

mar. 5/610:45 amCOS - STL

2 stops8h 15mSouthwest

mié. 5/142:20 pmSTL - COS

2 stops8h 40mSouthwest

Deal found 4/10

$305

One-way flights from Colorado Springs to St. Louis
Search for one-way flight options from Colorado Springs to St. Louis. Find affordable one-way fares based on user searches. Data last updated abril 11, 2025.

jue. 5/11:41 pmCOS - STL

1 stop5h 58mDelta

Deal found 4/10

$152

jue. 5/15:55 amCOS - STL

2 stops7h 20mSouthwest

Deal found 4/10

$192

dom. 6/810:35 amCOS - STL

2 stops11h 12mUnited Airlines

Deal found 4/10

$424

Cheapflights Fare Finder

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

mar. 5/6

3:40 pm-9:01 pm

1 stop4h 21m

Lambert-St Louis

mié. 5/14

5:20 am-8:44 am

1 stop4h 24m

$243

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

mar. 7/1

2:28 pm-11:51 pm

1 stop8h 23m

Lambert-St Louis

jue. 7/10

6:30 am-10:44 am

1 stop5h 14m

$297

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

mar. 5/6

10:45 am-8:00 pm

2 stops8h 15m

Lambert-St Louis

mié. 5/14

2:20 pm-10:00 pm

2 stops8h 40m

$305

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

mié. 4/23

12:41 pm-7:29 pm

1 stop5h 48m

Lambert-St Louis

sáb. 4/26

5:26 am-9:52 am

1 stop5h 26m

$437

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

jue. 5/1

1:41 pm-8:39 pm

1 stop5h 58m

$152

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

jue. 5/1

5:55 am-2:15 pm

2 stops7h 20m

$192

Colorado SpringsSt. Louis

COS - STL

COSSTL

Colorado Springs

dom. 6/8

10:35 am-10:47 pm

2 stops11h 12m

$424

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/10

Compare providers for flights from Colorado Springs to St. Louis

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 April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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, August is the cheapest month in which you can book a flight from Colorado Springs to St. Louis (average of $311). Flying from Colorado Springs to St. Louis in March is currently the most expensive (average of $356). 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.

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Southwest

8.0

Very good

4,279 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Southwest

8.0

Very good

4,279 reviews

Southwest

8.0

Very good

4,279 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta

8.0

Very good

7,911 reviews

Southwest

8.0

Very good

4,279 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines

7.4

Good

8,636 reviews

Southwest

8.0

Very good

4,279 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,279 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

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 United Airlines. Our recent data shows that you can find tickets from as low as $243 on this airline. Additional options worth looking into are Delta and Southwest, starting at $297 and $305 round-trip. United Airlines is currently priced 33% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Colorado Springs to St. Louis one-way?
For one-way options, check prices for Delta. According to our data, you can fly for as low as $152. Users have also found prices from $192 and $424 on Southwest and United Airlines, respectively.
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, August is the cheapest month in which you can book a flight from Colorado Springs to St. Louis (average of $311). Flying from Colorado Springs to St. Louis in March is currently the most expensive (average of $356). 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

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Wentzville

Eureka

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Farmington

Chesterfield

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Other flights to St. Louis

Top 3 airlines flying from Colorado Springs to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$246	Average$289	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$266	Average$381	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$266	Average$375	FlexibilityNo cancel fee	On-time69%

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$152+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Colorado Springs to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Colorado Springs to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Colorado Springs to St. Louis

Cheapest flights from Colorado Springs to St. LouisExplore 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 abril 11, 2025.

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 abril 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Colorado Springs to St. Louis that are best for you.

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 April.

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.

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?

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

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.

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

What are the cheapest airlines to fly from Colorado Springs to St. Louis one-way?

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

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

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

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

Traveling to a place near Colorado Springs?

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Alternative routes for Colorado Springs to St. Louis

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Top 3 airlines flying from Colorado Springs to St. Louis

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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 abril 11, 2025.