$169+ Cheap flights from Hayden, CO to St. Louis (HDN - STL)
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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
HDN — STL
Nov 26 — Dec 31
Round-trip
1 adult, Economy
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Find cheap flights from Hayden 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
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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 Hayden to St. Louis
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Best
Last-minute
One-way
Cheapest flights from Hayden to St. LouisExplore the most affordable flight options available from Hayden to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2026.
Explore the most affordable flight options available from Hayden to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2026.
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/173:47 pm -
1 stop7h 29m
Mon 12/218:06 am -
1 stop5h 35m
Deal found 10/23![American Airlines logo]()
$265
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.
Thu 12/178:20 am -
1 stop4h 10m
Sun 12/208:20 am -
1 stop6h 00m
Deal found 10/23![Southwest logo]()
$285
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 12/181:55 pm -
1 stop6h 20m
Mon 12/215:45 am -
1 stop8h 35m
Deal found 10/23![Southwest logo]()
$291
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 12/1712:04 pm -
1 stop5h 14m
Mon 12/217:18 am -
2 stops8h 11m
Deal found 10/23![United Airlines logo]()
$301
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 12/1712:04 pm -
1 stop5h 14m
Sun 12/205:05 am -
2 stops10h 24m
Deal found 10/23![United Airlines logo]()
$324
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.
Thu 12/178:20 am -
2 stops9h 15m
Mon 12/215:05 am -
2 stops7h 45m
Deal found 10/23![Southwest logo]()
$409
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/21:27 pm -
1 stop6h 32m
Tue 11/38:50 am -
1 stop4h 35m
Deal found 10/25![United Airlines logo]()
$599
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/281:27 pm -
2 stops8h 57m
Fri 10/305:00 am -
2 stops8h 25m
Deal found 10/22![United Airlines logo]()
$609
Best flights from Hayden to St. LouisDiscover carefully curated flight deals from Hayden to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 27, 2026.
Discover carefully curated flight deals from Hayden to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 27, 2026.
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 12/181:55 pm -
2 stops9h 20m
Mon 12/215:45 am -
1 stop8h 35m
Deal found 10/23![Southwest logo]()
$296
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 12/1712:04 pm -
1 stop5h 14m
Mon 12/217:18 am -
2 stops8h 11m
Deal found 10/23![United Airlines logo]()
$301
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.
Thu 12/178:20 am -
2 stops7h 35m
Sun 12/2011:40 am -
2 stops9h 05m
Deal found 10/23![Southwest logo]()
$399
This United Airlines deal was found by Cheapflights users on 10/24. 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 12/111:26 pm -
1 stop6h 31m
Sun 12/132:50 pm -
1 stop6h 49m
Deal found 10/24![United Airlines logo]()
$687
Last-minute flights from Hayden to St. LouisDiscover last-minute flight deals from Hayden to St. Louis. Data last updated October 27, 2026 and is based on user searches.
Discover last-minute flight deals from Hayden to St. Louis. Data last updated October 27, 2026 and is based on user searches.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/281:27 pm -
2 stops8h 57m
Fri 10/305:00 am -
2 stops8h 25m
Deal found 10/22![United Airlines logo]()
$609
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/21:27 pm -
1 stop6h 32m
Tue 11/38:50 am -
1 stop4h 35m
Deal found 10/25![United Airlines logo]()
$599
One-way flights from Hayden to St. LouisSearch for one-way flight options from Hayden to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 27, 2026.
Search for one-way flight options from Hayden to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 27, 2026.
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.
Fri 1/13:30 pm -
1 stop5h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Delta logo]()
$169
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.
Fri 3/193:20 pm -
1 stop5h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$205
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.
Sat 3/207:30 am -
1 stop4h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$248
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.
Sat 3/204:45 pm -
2 stops8h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Southwest logo]()
$255
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 3/1912:15 pm -
2 stops5h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Southwest logo]()
$291
This United Airlines deal was found by Cheapflights users on 10/26. 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 1/17:10 am -
2 stops10h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![United Airlines logo]()
$412
This United Airlines deal was found by Cheapflights users on 10/26. 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 1/21:33 pm -
1 stop6h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![United Airlines logo]()
$623
Find flight deals from Hayden to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Hayden (HDN) 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 27, 2026.
Most accurate provider | eDreams 2 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $265 (American Airlines) |
One-way from | $169 (Delta) |
Cheapflights Fare Finder
Customize your flight search to find flights from Hayden 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 7,457,451 searches. Data last updated October 27, 2026.
Use the filters below to find and compare flights from Hayden to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Fri 1/1
3:30 pm-9:41 pm
1 stop5h 11m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$169
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Fri 3/19
3:20 pm-9:52 pm
1 stop5h 32m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$205
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Sat 3/20
7:30 am-12:52 pm
1 stop4h 22m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$248
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Fri 3/19
12:15 pm-6:55 pm
2 stops5h 40m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$291
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Fri 12/18
1:55 pm-12:15 am
2 stops9h 20m
Lambert-St Louis
Mon 12/21
5:45 am-1:20 pm
1 stop8h 35m
$296
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Thu 12/17
12:04 pm-6:18 pm
1 stop5h 14m
Lambert-St Louis
Mon 12/21
7:18 am-2:29 pm
2 stops8h 11m
$301
Quickest round-trip
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Sat 3/20
4:45 pm-9:40 pm
1 stop3h 55m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$354
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Thu 12/17
8:20 am-4:55 pm
2 stops7h 35m
Lambert-St Louis
Sun 12/20
11:40 am-7:45 pm
2 stops9h 05m
$399
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Fri 1/1
7:10 am-7:02 pm
2 stops10h 52m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$412
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Sat 1/2
1:33 pm-9:08 pm
1 stop6h 35m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$623
Showing 1-10 of 11 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Hayden, Colorado-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Hayden, Colorado-St. Louis flight deals on Cheapflights vs. eDreams 90-95% of the time. Price accuracy is based on data collected from Hayden, Colorado-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Hayden, Colorado-St. Louis flights, Cheapflights users trust eDreams the most. eDreams 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 Hayden, Colorado-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 Hayden to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Hayden with our price prediction graph.
HDN-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.
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 27, 2026.
Read reviews from past customers who have flown United Airlines from Hayden to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Food
6.7
Overall
7.3
Reviews
1 / 20
10.0
ExcellentMichelle,Dec 2025
DEN - MKE
Crew
8.1
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Food
6.7
Overall
7.3
Reviews
1 / 20
10.0
ExcellentMichelle,Dec 2025
DEN - MKE
Related info for your journey
Find useful and relevant information for your journey from Hayden 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 locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Chesterfield
Collinsville
Edwardsville
Glencoe
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Hayden and St. Louis flights
Browse other Hayden and St. Louis flight options. Last updated on October 27, 2026.
Other flights from Hayden
Browse through other flights departing from Hayden. Flights are based on user searches made on Cheapflights and were last updated on October 27, 2026.
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Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 27, 2026.
Top airline flying from Hayden to St. Louis
Discover the top airline that operate flights from Hayden 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 7,457,451 searches. Data last updated October 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$278 | Average$443 | FlexibilityNo cancel fee | On-time69% |