$318+ Cheap flights from St. Louis to Cheyenne (STL - CYS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CYS
Oct 13 — Oct 201
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Cheyenne 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 St. Louis to Cheyenne
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to CheyenneExplore the most affordable flight options available from St. Louis to Cheyenne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2026.
Explore the most affordable flight options available from St. Louis to Cheyenne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/255:36 pm -
2 stops20h 28m
Tue 9/291:40 pm -
1 stop5h 56m
Deal found 9/10![United Airlines logo]()
$780
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/289:00 am -
1 stop5h 04m
Tue 9/291:40 pm -
1 stop5h 56m
Deal found 9/11![United Airlines logo]()
$822
Best flights from St. Louis to CheyenneDiscover carefully curated flight deals from St. Louis to Cheyenne that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
Discover carefully curated flight deals from St. Louis to Cheyenne that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/255:36 pm -
2 stops20h 28m
Tue 9/291:40 pm -
1 stop5h 56m
Deal found 9/10![United Airlines logo]()
$780
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/289:00 am -
1 stop5h 04m
Tue 9/291:40 pm -
1 stop5h 56m
Deal found 9/11![United Airlines logo]()
$822
Last-minute flights from St. Louis to CheyenneDiscover last-minute flight deals from St. Louis to Cheyenne. Data last updated September 13, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Cheyenne. Data last updated September 13, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/255:36 pm -
2 stops20h 28m
Tue 9/291:40 pm -
1 stop5h 56m
Deal found 9/10![United Airlines logo]()
$780
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/289:00 am -
1 stop5h 04m
Tue 9/291:40 pm -
1 stop5h 56m
Deal found 9/11![United Airlines logo]()
$822
One-way flights from St. Louis to CheyenneSearch for one-way flight options from St. Louis to Cheyenne. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
Search for one-way flight options from St. Louis to Cheyenne. Find affordable one-way fares based on user searches. Data last updated September 13, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/239:00 am -
1 stop5h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$318
Find flight deals from St. Louis to Cheyenne
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Cheyenne (CYS). 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 September 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $780 (United Airlines) |
One-way from | $318 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Cheyenne 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 7,457,451 searches. Data last updated September 13, 2026.
Use the filters below to find and compare flights from St. Louis to Cheyenne that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisCheyenne
STL Lambert-St Louis - CYS Cheyenne
STLCYS
Lambert-St Louis
Wed 9/23
9:00 am-1:09 pm
1 stop5h 09m
Cheyenne
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$318
St. LouisCheyenne
STL Lambert-St Louis - CYS Cheyenne
STLCYS
Lambert-St Louis
Fri 9/25
5:36 pm-1:04 pm
2 stops20h 28m
Cheyenne
Tue 9/29
1:40 pm-8:36 pm
1 stop5h 56m
$780
St. LouisCheyenne
STL Lambert-St Louis - CYS Cheyenne
STLCYS
Lambert-St Louis
Mon 9/28
9:00 am-1:04 pm
1 stop5h 04m
Cheyenne
Tue 9/29
1:40 pm-8:36 pm
1 stop5h 56m
$822
Sorted by cheapest first
Compare providers for flights from St. Louis to Cheyenne
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 St. Louis to Cheyenne in September.
| 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 St. Louis-Cheyenne flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Cheyenne flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Cheyenne flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Cheyenne 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 St. Louis-Cheyenne 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 St. Louis to Cheyenne
Have a flexible travel schedule? Discover the best time to fly to Cheyenne from St. Louis with our price prediction graph.
STL-CYS
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.
Related info for your journey
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