$147+ 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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
COS — STL
Mar 5 — Mar 121
1 adult, Economy
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Find cheap flights from Colorado Springs to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Colorado Springs to St. Louis
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Best
Last-minute
One-way
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 February 3, 2026.
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 February 3, 2026.
This Delta deal was found by Cheapflights users on 2/2. 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.
Fri 3/67:55 am
COS
- STL
1 stop8h 47m
Delta
Mon 3/96:00 am
STL
- COS
1 stop7h 31m
Delta
Deal found 2/2![Delta logo]()
$293
This Southwest deal was found by Cheapflights users on 2/2. 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 3/2611:10 am
COS
- STL
1 stop12h 40m
Southwest
Wed 4/12:40 pm
STL
- COS
1 stop7h 40m
Southwest
Deal found 2/2![Southwest logo]()
$298
This American Airlines deal was found by Cheapflights users on 2/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/146:00 am
COS
- STL
1 stop8h 57m
American Airlines
Mon 3/166:50 pm
STL
- COS
1 stop6h 09m
American Airlines
Deal found 2/2![American Airlines logo]()
$302
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Sat 6/136:34 pm
COS
- STL
1 stop4h 24m
United Airlines
Thu 6/255:15 am
STL
- COS
1 stop4h 26m
United Airlines
Deal found 2/1![United Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 2/2. 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.
Sun 4/261:50 pm
COS
- STL
1 stop6h 35m
Southwest
Thu 4/305:45 am
STL
- COS
1 stop5h 15m
Southwest
Deal found 2/2![Southwest logo]()
$320
This Delta deal was found by Cheapflights users on 2/2. 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 2/267:55 am
COS
- STL
1 stop8h 47m
Delta
Wed 3/47:10 am
STL
- COS
1 stop6h 15m
Delta
Deal found 2/2![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 2/2. 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 2/2610:10 am
COS
- STL
2 stops8h 05m
Southwest
Wed 3/46:00 am
STL
- COS
2 stops8h 05m
Southwest
Deal found 2/2![Southwest logo]()
$339
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Tue 3/31:40 pm
COS
- STL
2 stops6h 25m
United Airlines
Tue 3/106:25 am
STL
- COS
2 stops7h 03m
United Airlines
Deal found 2/2![United Airlines logo]()
$340
This Southwest deal was found by Cheapflights users on 2/2. 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 4/235:20 pm
COS
- STL
1 stop5h 30m
Southwest
Sun 4/266:35 pm
STL
- COS
1 stop6h 55m
Southwest
Deal found 2/2![Southwest logo]()
$347
Best flights from Colorado Springs to St. LouisDiscover 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 February 3, 2026.
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 February 3, 2026.
This Delta deal was found by Cheapflights users on 2/2. 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.
Wed 5/271:55 pm
COS
- STL
1 stop6h 29m
Delta
Mon 6/16:00 am
STL
- COS
1 stop7h 48m
Delta
Deal found 2/2![Delta logo]()
$293
This American Airlines deal was found by Cheapflights users on 2/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/146:00 am
COS
- STL
1 stop8h 57m
American Airlines
Mon 3/166:50 pm
STL
- COS
1 stop6h 09m
American Airlines
Deal found 2/2![American Airlines logo]()
$302
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Sat 6/136:34 pm
COS
- STL
1 stop4h 24m
United Airlines
Thu 6/255:15 am
STL
- COS
1 stop4h 26m
United Airlines
Deal found 2/1![United Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 2/2. 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 3/2611:10 am
COS
- STL
1 stop12h 40m
Southwest
Wed 4/12:15 pm
STL
- COS
2 stops8h 05m
Southwest
Deal found 2/2![Southwest logo]()
$331
This Delta deal was found by Cheapflights users on 2/1. 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.
Fri 3/61:22 pm
COS
- STL
1 stop6h 19m
Delta
Mon 3/96:00 am
STL
- COS
1 stop7h 31m
Delta
Deal found 2/1![Delta logo]()
$293
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Tue 3/33:40 pm
COS
- STL
1 stop3h 46m
United Airlines
Tue 3/109:00 am
STL
- COS
1 stop6h 20m
United Airlines
Deal found 2/2![United Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 2/2. 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 4/235:20 pm
COS
- STL
1 stop5h 30m
Southwest
Sun 4/266:35 pm
STL
- COS
1 stop6h 55m
Southwest
Deal found 2/2![Southwest logo]()
$347
This Southwest deal was found by Cheapflights users on 2/2. 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.
Sun 4/261:50 pm
COS
- STL
1 stop6h 35m
Southwest
Thu 4/303:50 pm
STL
- COS
2 stops9h 15m
Southwest
Deal found 2/2![Southwest logo]()
$351
This Southwest deal was found by Cheapflights users on 2/1. 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.
Sun 6/145:00 am
COS
- STL
1 stop8h 45m
Southwest
Wed 6/246:00 am
STL
- COS
1 stop3h 55m
Southwest
Deal found 2/1![Southwest logo]()
$352
Last-minute flights from Colorado Springs to St. LouisDiscover last-minute flight deals from Colorado Springs to St. Louis. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado Springs to St. Louis. Data last updated February 3, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 2/2. 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 2/267:55 am
COS
- STL
1 stop8h 47m
Delta
Wed 3/47:10 am
STL
- COS
1 stop6h 15m
Delta
Deal found 2/2![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 2/2. 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 2/2610:10 am
COS
- STL
2 stops8h 05m
Southwest
Wed 3/46:00 am
STL
- COS
2 stops8h 05m
Southwest
Deal found 2/2![Southwest logo]()
$339
This United Airlines deal was found by Cheapflights users on 2/2. 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 2/267:05 am
COS
- STL
1 stop5h 09m
United Airlines
Thu 2/266:00 pm
STL
- COS
1 stop6h 45m
United Airlines
Deal found 2/2![United Airlines logo]()
$365
This American Airlines deal was found by Cheapflights users on 2/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/271:39 pm
COS
- STL
1 stop4h 50m
American Airlines
Thu 3/59:35 am
STL
- COS
1 stop7h 23m
American Airlines
Deal found 2/2![American Airlines logo]()
$356
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Tue 3/31:40 pm
COS
- STL
2 stops6h 25m
United Airlines
Tue 3/106:25 am
STL
- COS
2 stops7h 03m
United Airlines
Deal found 2/2![United Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 2/3. 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.
Fri 3/67:55 am
COS
- STL
1 stop8h 47m
Delta
Mon 3/97:03 am
STL
- COS
1 stop6h 28m
Delta
Deal found 2/3![Delta logo]()
$293
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Fri 3/61:32 pm
COS
- STL
2 stops8h 27m
United Airlines
Mon 3/99:00 am
STL
- COS
1 stop6h 20m
United Airlines
Deal found 2/2![United Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 2/2. 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 3/135:05 am
COS
- STL
1 stop6h 45m
Southwest
Wed 3/182:25 pm
STL
- COS
2 stops7h 35m
Southwest
Deal found 2/2![Southwest logo]()
$362
This American Airlines deal was found by Cheapflights users on 2/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/146:00 am
COS
- STL
1 stop8h 57m
American Airlines
Mon 3/166:50 pm
STL
- COS
1 stop6h 09m
American Airlines
Deal found 2/2![American Airlines logo]()
$302
This Southwest deal was found by Cheapflights users on 2/2. 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 3/2611:10 am
COS
- STL
1 stop12h 40m
Southwest
Wed 4/12:40 pm
STL
- COS
1 stop7h 40m
Southwest
Deal found 2/2![Southwest logo]()
$298
One-way flights from Colorado Springs to St. LouisSearch for one-way flight options from Colorado Springs to St. Louis. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
Search for one-way flight options from Colorado Springs to St. Louis. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This Southwest deal was found by Cheapflights users on 2/2. 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 3/234:45 pm
COS
- STL
1 stop6h 20m
Southwest
Deal found 2/2![Southwest logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:13 pm
COS
- STL
3 stops39h 36m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$184
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Mon 3/233:25 pm
COS
- STL
3 stops18h 11m
United Airlines
Deal found 2/2![United Airlines logo]()
$780
Find 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 February 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $293 (Delta) |
One-way from | $147 (Southwest) |
Popular in | January |
Cheapest in | November |
Average price | $358 |
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 February 3, 2026.
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
Wed 5/27
1:55 pm-9:24 pm
1 stop6h 29m
Lambert-St Louis
Mon 6/1
6:00 am-12:48 pm
1 stop7h 48m
$293
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Fri 3/6
1:22 pm-8:41 pm
1 stop6h 19m
Lambert-St Louis
Mon 3/9
6:00 am-12:31 pm
1 stop7h 31m
$293
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Sat 3/14
6:00 am-3:57 pm
1 stop8h 57m
Lambert-St Louis
Mon 3/16
6:50 pm-11:59 pm
1 stop6h 09m
$302
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Sat 6/13
6:34 pm-11:58 pm
1 stop4h 24m
Lambert-St Louis
Thu 6/25
5:15 am-8:41 am
1 stop4h 26m
$314
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Tue 3/3
3:40 pm-8:26 pm
1 stop3h 46m
Lambert-St Louis
Tue 3/10
9:00 am-2:20 pm
1 stop6h 20m
$329
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Thu 3/26
11:10 am-12:50 am
1 stop12h 40m
Lambert-St Louis
Wed 4/1
2:15 pm-9:20 pm
2 stops8h 05m
$331
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Thu 4/23
5:20 pm-11:50 pm
1 stop5h 30m
Lambert-St Louis
Sun 4/26
6:35 pm-12:30 am
1 stop6h 55m
$347
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Sun 4/26
1:50 pm-9:25 pm
1 stop6h 35m
Lambert-St Louis
Thu 4/30
3:50 pm-12:05 am
2 stops9h 15m
$351
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Sun 6/14
5:00 am-2:45 pm
1 stop8h 45m
Lambert-St Louis
Wed 6/24
6:00 am-8:55 am
1 stop3h 55m
$352
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Mon 3/23
4:45 pm-12:05 am
1 stop6h 20m
$147
Showing 1-10 of 12 results
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 February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
COS-STL
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
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 February 3, 2026.
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.
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Colorado Springs to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
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 February 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$233 | Average$389 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$266 | Average$373 | FlexibilityNo cancel fee | On-time69% |