$339+ 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 12/19. Fares are subject to change and may not be available on all flights or dates of travel.
HDN — STL
Nov 12 — Nov 191
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
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
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 13, 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 13, 2026.
This Southwest deal was found by Cheapflights users on 10/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1912:00 pm -
1 stop6h 10m
Thu 12/242:35 pm -
1 stop5h 35m
Deal found 10/11![Southwest logo]()
$339
This American Airlines deal was found by Cheapflights users on 10/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/203:47 pm -
1 stop7h 29m
Thu 12/245:00 am -
1 stop8h 41m
Deal found 10/11![American Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/41:27 pm -
1 stop6h 32m
Sun 11/88:50 am -
1 stop4h 35m
Deal found 10/9![United Airlines logo]()
$371
This Southwest deal was found by Cheapflights users on 10/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/201:55 pm -
2 stops9h 15m
Thu 12/2411:55 am -
2 stops8h 15m
Deal found 10/11![Southwest logo]()
$379
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Sat 10/241:43 pm -
1 stop5h 53m
Wed 10/286:00 am -
2 stops7h 25m
Deal found 10/8![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 10/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:10 am -
1 stop8h 15m
Wed 10/282:35 pm -
1 stop5h 50m
Deal found 10/8![Southwest logo]()
$435
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/41:27 pm -
1 stop6h 32m
Mon 11/98:50 am -
1 stop4h 35m
Deal found 10/9![United Airlines logo]()
$439
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 13, 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 13, 2026.
This Southwest deal was found by Cheapflights users on 10/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/201:55 pm -
2 stops9h 15m
Thu 12/2411:55 am -
2 stops8h 15m
Deal found 10/11![Southwest logo]()
$379
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Sat 10/241:43 pm -
1 stop5h 53m
Wed 10/286:00 am -
2 stops7h 25m
Deal found 10/8![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 10/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1911:05 am -
2 stops7h 00m
Thu 12/2411:55 am -
2 stops8h 15m
Deal found 10/11![Southwest logo]()
$396
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Tue 2/93:25 pm -
1 stop4h 13m
Wed 2/103:10 pm -
1 stop6h 29m
Deal found 10/8![United Airlines logo]()
$417
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/51:27 pm -
1 stop6h 32m
Mon 11/94:39 pm -
1 stop4h 53m
Deal found 10/9![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/51:27 pm -
1 stop6h 32m
Sun 11/88:50 am -
1 stop4h 35m
Deal found 10/9![United Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 10/9. 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 10/297:15 am -
1 stop4h 23m
Mon 11/24:39 pm -
1 stop4h 53m
Deal found 10/9![United Airlines logo]()
$519
Last-minute flights from Hayden to St. LouisDiscover last-minute flight deals from Hayden to St. Louis. Data last updated October 13, 2026 and is based on user searches.
Discover last-minute flight deals from Hayden to St. Louis. Data last updated October 13, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Fri 10/237:05 am -
1 stop4h 35m
Sun 10/258:50 am -
1 stop4h 35m
Deal found 10/8![United Airlines logo]()
$517
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Sat 10/241:43 pm -
1 stop5h 53m
Wed 10/286:00 am -
2 stops7h 25m
Deal found 10/8![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 10/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:10 am -
1 stop8h 15m
Wed 10/282:35 pm -
1 stop5h 50m
Deal found 10/8![Southwest logo]()
$435
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/41:27 pm -
1 stop6h 32m
Sun 11/88:50 am -
1 stop4h 35m
Deal found 10/9![United Airlines logo]()
$371
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/41:27 pm -
1 stop6h 32m
Mon 11/98:50 am -
1 stop4h 35m
Deal found 10/9![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/9. 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 11/51:27 pm -
1 stop6h 32m
Sun 11/88:50 am -
1 stop4h 35m
Deal found 10/9![United Airlines logo]()
$471
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 13, 2026.
Round-trip from | $339 (Southwest) |
|---|
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 13, 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
Sun 12/20
1:55 pm-12:10 am
2 stops9h 15m
Lambert-St Louis
Thu 12/24
11:55 am-7:10 pm
2 stops8h 15m
$379
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Sat 12/19
11:05 am-7:05 pm
2 stops7h 00m
Lambert-St Louis
Thu 12/24
11:55 am-7:10 pm
2 stops8h 15m
$396
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Sat 10/24
1:43 pm-8:36 pm
1 stop5h 53m
Lambert-St Louis
Wed 10/28
6:00 am-12:25 pm
2 stops7h 25m
$414
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Tue 2/9
3:25 pm-8:38 pm
1 stop4h 13m
Lambert-St Louis
Wed 2/10
3:10 pm-8:39 pm
1 stop6h 29m
$417
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Thu 11/5
1:27 pm-8:59 pm
1 stop6h 32m
Lambert-St Louis
Mon 11/9
4:39 pm-8:32 pm
1 stop4h 53m
$439
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Thu 11/5
1:27 pm-8:59 pm
1 stop6h 32m
Lambert-St Louis
Sun 11/8
8:50 am-12:25 pm
1 stop4h 35m
$471
Quickest round-trip
HaydenSt. Louis
HDN Hayden Yampa Valley - STL Lambert-St Louis
HDNSTL
Hayden Yampa Valley
Thu 10/29
7:15 am-12:38 pm
1 stop4h 23m
Lambert-St Louis
Mon 11/2
4:39 pm-8:32 pm
1 stop4h 53m
$519
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 October 13, 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
Overall
7.4
Entertainment
7.1
Boarding
7.7
Food
6.7
Comfort
7.3
Reviews
1 / 20
10.0
ExcellentMichelle,Dec 2025
DEN - MKE
Crew
8.1
Overall
7.4
Entertainment
7.1
Boarding
7.7
Food
6.7
Comfort
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
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
Complete your trip
Flights by cabin class
Other flight options
Other flights from Hayden
Popular flights
St. Louis flight routes
Alternative routes for Hayden to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Hayden to St. Louis by cabin class
Find flights from Hayden to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hayden and St. Louis flights
Browse other Hayden and St. Louis flight options. Last updated on October 13, 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 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 13, 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 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$264 | Average$448 | FlexibilityNo cancel fee | On-time69% |