$121+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
COS — STL
Apr 21 — Apr 281
Round-trip
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
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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 March 22, 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 March 22, 2026.
This Delta deal was found by Cheapflights users on 3/18. 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 4/151:14 pm
COS
- STL
1 stop7h 05m
Delta
Wed 4/221:03 pm
STL
- COS
1 stop8h 17m
Delta
Deal found 3/18![Delta logo]()
$221
This Southwest deal was found by Cheapflights users on 3/18. 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.
Wed 4/1510:25 am
COS
- STL
2 stops8h 35m
Southwest
Wed 4/227:10 am
STL
- COS
1 stop6h 25m
Southwest
Deal found 3/18![Southwest logo]()
$226
This Southwest deal was found by Cheapflights users on 3/17. 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.
Wed 4/1512:40 pm
COS
- STL
2 stops7h 35m
Southwest
Tue 4/2110:25 am
STL
- COS
2 stops8h 40m
Southwest
Deal found 3/17![Southwest logo]()
$231
This American Airlines deal was found by Cheapflights users on 3/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:13 pm
COS
- STL
1 stop4h 46m
American Airlines
Sat 5/96:11 pm
STL
- COS
1 stop6h 21m
American Airlines
Deal found 3/20![American Airlines logo]()
$241
This Southwest deal was found by Cheapflights users on 3/20. 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 4/165:00 am
COS
- STL
1 stop6h 50m
Southwest
Sat 4/186:10 am
STL
- COS
2 stops8h 30m
Southwest
Deal found 3/20![Southwest logo]()
$246
This United Airlines deal was found by Cheapflights users on 3/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2010:40 am
COS
- STL
1 stop5h 17m
United Airlines
Sun 5/245:10 am
STL
- COS
1 stop4h 31m
United Airlines
Deal found 3/20![United Airlines logo]()
$277
This United Airlines deal was found by Cheapflights users on 3/17. 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 4/231:33 pm
COS
- STL
1 stop6h 21m
United Airlines
Sat 4/254:49 pm
STL
- COS
1 stop5h 42m
United Airlines
Deal found 3/17![United Airlines logo]()
$278
This Southwest deal was found by Cheapflights users on 3/20. 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.
Fri 4/244:05 pm
COS
- STL
1 stop5h 35m
Southwest
Mon 4/276:00 pm
STL
- COS
1 stop7h 05m
Southwest
Deal found 3/20![Southwest logo]()
$287
This Southwest deal was found by Cheapflights users on 3/18. 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 4/191:50 pm
COS
- STL
1 stop6h 35m
Southwest
Sat 4/258:45 am
STL
- COS
1 stop9h 50m
Southwest
Deal found 3/18![Southwest logo]()
$292
This Southwest deal was found by Cheapflights users on 3/20. 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 4/234:05 pm
COS
- STL
1 stop5h 35m
Southwest
Sun 4/266:15 am
STL
- COS
1 stop4h 05m
Southwest
Deal found 3/20![Southwest logo]()
$314
This Southwest deal was found by Cheapflights users on 3/20. 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.
Wed 5/202:30 pm
COS
- STL
1 stop5h 45m
Southwest
Sun 5/249:00 am
STL
- COS
2 stops11h 25m
Southwest
Deal found 3/20![Southwest logo]()
$315
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 March 22, 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 March 22, 2026.
This Southwest deal was found by Cheapflights users on 3/18. 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.
Wed 4/154:45 pm
COS
- STL
1 stop5h 30m
Southwest
Wed 4/222:30 pm
STL
- COS
1 stop8h 50m
Southwest
Deal found 3/18![Southwest logo]()
$221
This Delta deal was found by Cheapflights users on 3/17. 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 4/157:59 am
COS
- STL
1 stop8h 27m
Delta
Tue 4/212:20 pm
STL
- COS
1 stop8h 53m
Delta
Deal found 3/17![Delta logo]()
$221
This United Airlines deal was found by Cheapflights users on 3/19. 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 4/181:33 pm
COS
- STL
1 stop6h 21m
United Airlines
Sat 4/256:00 am
STL
- COS
1 stop6h 24m
United Airlines
Deal found 3/19![United Airlines logo]()
$241
This Southwest deal was found by Cheapflights users on 3/17. 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.
Wed 4/1512:40 pm
COS
- STL
2 stops7h 35m
Southwest
Tue 4/2110:25 am
STL
- COS
2 stops8h 40m
Southwest
Deal found 3/17![Southwest logo]()
$231
This Southwest deal was found by Cheapflights users on 3/19. 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.
Sat 4/182:15 pm
COS
- STL
1 stop7h 45m
Southwest
Sat 4/256:10 am
STL
- COS
2 stops8h 30m
Southwest
Deal found 3/19![Southwest logo]()
$246
This Southwest deal was found by Cheapflights users on 3/20. 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 4/164:05 pm
COS
- STL
2 stops6h 50m
Southwest
Sat 4/188:50 am
STL
- COS
2 stops7h 50m
Southwest
Deal found 3/20![Southwest logo]()
$251
This Southwest deal was found by Cheapflights users on 3/20. 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 4/234:05 pm
COS
- STL
1 stop5h 35m
Southwest
Sun 4/266:15 am
STL
- COS
1 stop4h 05m
Southwest
Deal found 3/20![Southwest logo]()
$314
This Southwest deal was found by Cheapflights users on 3/21. 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 5/14:05 pm
COS
- STL
1 stop5h 35m
Southwest
Sun 5/35:35 am
STL
- COS
1 stop6h 05m
Southwest
Deal found 3/21![Southwest logo]()
$333
This Southwest deal was found by Cheapflights users on 3/19. 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 4/94:05 pm
COS
- STL
2 stops6h 50m
Southwest
Sun 4/125:35 am
STL
- COS
1 stop6h 05m
Southwest
Deal found 3/19![Southwest logo]()
$335
Last-minute flights from Colorado Springs to St. LouisDiscover last-minute flight deals from Colorado Springs to St. Louis. Data last updated March 22, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado Springs to St. Louis. Data last updated March 22, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/18. 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 4/31:28 pm
COS
- STL
1 stop6h 38m
Delta
Wed 4/222:20 pm
STL
- COS
1 stop8h 53m
Delta
Deal found 3/18![Delta logo]()
$324
This Southwest deal was found by Cheapflights users on 3/18. 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.
Wed 4/154:45 pm
COS
- STL
1 stop5h 30m
Southwest
Wed 4/222:30 pm
STL
- COS
1 stop8h 50m
Southwest
Deal found 3/18![Southwest logo]()
$221
This Delta deal was found by Cheapflights users on 3/17. 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 4/151:14 pm
COS
- STL
1 stop7h 05m
Delta
Tue 4/219:59 am
STL
- COS
2 stops13h 14m
Delta
Deal found 3/17![Delta logo]()
$226
This Southwest deal was found by Cheapflights users on 3/20. 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 4/164:05 pm
COS
- STL
1 stop5h 35m
Southwest
Sat 4/181:45 pm
STL
- COS
1 stop8h 05m
Southwest
Deal found 3/20![Southwest logo]()
$241
This Southwest deal was found by Cheapflights users on 3/18. 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 4/191:50 pm
COS
- STL
1 stop6h 35m
Southwest
Sat 4/258:45 am
STL
- COS
1 stop9h 50m
Southwest
Deal found 3/18![Southwest logo]()
$292
This United Airlines deal was found by Cheapflights users on 3/17. 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 4/231:33 pm
COS
- STL
1 stop6h 21m
United Airlines
Sat 4/254:49 pm
STL
- COS
1 stop5h 42m
United Airlines
Deal found 3/17![United Airlines logo]()
$278
This Southwest deal was found by Cheapflights users on 3/20. 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 4/234:05 pm
COS
- STL
1 stop5h 35m
Southwest
Sun 4/266:15 am
STL
- COS
1 stop4h 05m
Southwest
Deal found 3/20![Southwest logo]()
$314
This Southwest deal was found by Cheapflights users on 3/20. 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.
Fri 4/244:05 pm
COS
- STL
1 stop5h 35m
Southwest
Mon 4/276:00 pm
STL
- COS
1 stop7h 05m
Southwest
Deal found 3/20![Southwest logo]()
$287
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 March 22, 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 March 22, 2026.
This United Airlines deal was found by Cheapflights users on 3/19. 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 4/183:26 pm
COS
- STL
1 stop4h 28m
United Airlines
Deal found 3/19![United Airlines logo]()
$121
This Delta deal was found by Cheapflights users on 3/19. 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.
Sat 4/187:59 am
COS
- STL
2 stops7h 51m
Delta
Deal found 3/19![Delta logo]()
$126
This United Airlines deal was found by Cheapflights users on 3/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/11:25 pm
COS
- STL
1 stop6h 18m
United Airlines
Deal found 3/20![United Airlines logo]()
$167
This Southwest deal was found by Cheapflights users on 3/20. 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.
Fri 5/14:05 pm
COS
- STL
2 stops6h 50m
Southwest
Deal found 3/20![Southwest logo]()
$172
This American Airlines deal was found by Cheapflights users on 3/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:00 am
COS
- STL
1 stop7h 33m
American Airlines
Deal found 3/22![American Airlines logo]()
$194
This Southwest deal was found by Cheapflights users on 3/18. 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 5/214:05 pm
COS
- STL
2 stops6h 50m
Southwest
Deal found 3/18![Southwest logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/12:37 pm
COS
- STL
3 stops51h 44m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$207
This Delta deal was found by Cheapflights users on 3/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:20 am
COS
- STL
1 stop7h 53m
Delta
Deal found 3/22![Delta logo]()
$214
This Southwest deal was found by Cheapflights users on 3/22. 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.
Sun 4/56:45 am
COS
- STL
2 stops7h 05m
Southwest
Deal found 3/22![Southwest logo]()
$219
This Southwest deal was found by Cheapflights users on 3/18. 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 3/295:05 pm
COS
- STL
1 stop4h 15m
Southwest
Deal found 3/18![Southwest logo]()
$285
This Delta deal was found by Cheapflights users on 3/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:15 am
COS
- STL
2 stops7h 31m
Delta
Deal found 3/20![Delta logo]()
$335
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 March 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $221 (Southwest) |
One-way from | $121 (United Airlines) |
Popular in | August |
Cheapest in | November |
Average price | $375 |
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 March 22, 2026.
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
Cheapest round-trip
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Wed 4/15
4:45 pm-11:15 pm
1 stop5h 30m
Lambert-St Louis
Wed 4/22
2:30 pm-10:20 pm
1 stop8h 50m
$221
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Wed 4/15
7:59 am-5:26 pm
1 stop8h 27m
Lambert-St Louis
Tue 4/21
2:20 pm-10:13 pm
1 stop8h 53m
$221
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Wed 4/15
12:40 pm-9:15 pm
2 stops7h 35m
Lambert-St Louis
Tue 4/21
10:25 am-6:05 pm
2 stops8h 40m
$231
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Sat 4/18
1:33 pm-8:54 pm
1 stop6h 21m
Lambert-St Louis
Sat 4/25
6:00 am-11:24 am
1 stop6h 24m
$241
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Sat 4/18
2:15 pm-11:00 pm
1 stop7h 45m
Lambert-St Louis
Sat 4/25
6:10 am-1:40 pm
2 stops8h 30m
$246
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Thu 4/16
4:05 pm-11:55 pm
2 stops6h 50m
Lambert-St Louis
Sat 4/18
8:50 am-3:40 pm
2 stops7h 50m
$251
Quickest round-trip
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Thu 4/23
4:05 pm-10:40 pm
1 stop5h 35m
Lambert-St Louis
Sun 4/26
6:15 am-9:20 am
1 stop4h 05m
$314
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Fri 5/1
4:05 pm-10:40 pm
1 stop5h 35m
Lambert-St Louis
Sun 5/3
5:35 am-10:40 am
1 stop6h 05m
$333
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Thu 4/9
4:05 pm-11:55 pm
2 stops6h 50m
Lambert-St Louis
Sun 4/12
5:35 am-10:40 am
1 stop6h 05m
$335
Cheapest one-way
Colorado SpringsSt. Louis
COS - STL
COSSTL
Colorado Springs
Sat 4/18
3:26 pm-8:54 pm
1 stop4h 28m
$121
Showing 1-10 of 19 resultsSorted by cheapest first
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 March.
| 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
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 $55). Flying from Colorado Springs to St. Louis in June is currently the most expensive (average of $135). 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.
How much does it cost to fly round-trip 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 March 22, 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.
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Top 2 airlines flying from Colorado Springs to St. Louis
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$233 | Average$390 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$271 | Average$363 | FlexibilityNo cancel fee | On-time69% |