$170+ 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
Dec 6 — Dec 131
Round-trip
1 adult, Economy
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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 Hayden to St. Louis
Cheapest
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 November 6, 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 November 6, 2026.
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/31:26 pm -
1 stop6h 31m
Mon 12/78:40 am -
1 stop4h 41m
Deal found 11/5![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 11/2. 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 11/107:00 am -
1 stop4h 38m
Thu 11/128:50 am -
1 stop4h 35m
Deal found 11/2![United Airlines logo]()
$599
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/111:26 pm -
1 stop6h 31m
Sun 12/132:50 pm -
1 stop6h 49m
Deal found 11/2![United Airlines logo]()
$674
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 November 6, 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 November 6, 2026.
This United Airlines deal was found by Cheapflights users on 11/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/31:26 pm -
1 stop6h 31m
Mon 12/78:40 am -
1 stop4h 41m
Deal found 11/3![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/111:26 pm -
2 stops8h 33m
Sun 12/132:50 pm -
1 stop6h 49m
Deal found 11/2![United Airlines logo]()
$680
Last-minute flights from Hayden to St. LouisDiscover last-minute flight deals from Hayden to St. Louis. Data last updated November 6, 2026 and is based on user searches.
Discover last-minute flight deals from Hayden to St. Louis. Data last updated November 6, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 11/2. 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 11/107:00 am -
1 stop4h 38m
Thu 11/128:50 am -
1 stop4h 35m
Deal found 11/2![United Airlines logo]()
$599
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/31:26 pm -
1 stop6h 31m
Mon 12/78:40 am -
1 stop4h 41m
Deal found 11/5![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/111:26 pm -
1 stop6h 31m
Sun 12/132:50 pm -
1 stop6h 49m
Deal found 11/2![United Airlines logo]()
$674
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 November 6, 2026.
Search for one-way flight options from Hayden to St. Louis. Find affordable one-way fares based on user searches. Data last updated November 6, 2026.
This Delta deal was found by Cheapflights users on 11/5. 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 11/5![Delta logo]()
$170
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/311:33 pm -
2 stops9h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![United Airlines logo]()
$175
This American Airlines deal was found by Cheapflights users on 11/4. 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 1/13:47 pm -
1 stop7h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![American Airlines logo]()
$370
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/5![United Airlines logo]()
$423
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 November 6, 2026.
Round-trip from | $439 (United Airlines) |
|---|---|
One-way from | $170 (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 November 6, 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
Quickest 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
$170
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Thu 12/31
3:30 pm-9:41 pm
1 stop5h 11m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$170
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Thu 12/31
1:33 pm-11:38 pm
2 stops9h 05m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$175
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Fri 1/1
3:47 pm-12:16 am
1 stop7h 29m
Lambert-St Louis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$370
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
$423
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Thu 12/3
1:26 pm-8:57 pm
1 stop6h 31m
Lambert-St Louis
Mon 12/7
8:40 am-12:21 pm
1 stop4h 41m
$439
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Fri 12/11
1:26 pm-10:59 pm
2 stops8h 33m
Lambert-St Louis
Sun 12/13
2:50 pm-8:39 pm
1 stop6h 49m
$680
Sorted by cheapest first
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 November 6, 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.
Boarding
7.7
Crew
8.1
Comfort
7.3
Entertainment
7.1
Overall
7.3
Food
6.7
Reviews
1 / 20
10.0
ExcellentMichelle,Dec 2025
DEN - MKE
Boarding
7.7
Crew
8.1
Comfort
7.3
Entertainment
7.1
Overall
7.3
Food
6.7
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
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Chesterfield
Edwardsville
Glencoe
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Hayden and St. Louis flights
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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 November 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$278 | Average$409 | FlexibilityNo cancel fee | On-time69% |