Latest deals
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Hayden, Colorado to St. Louis from $351

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Hayden, Colorado to St. Louis departing on 11/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Hayden, Colorado to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
1:22 pm - 8:34 pm
HDN
-
STL
6h 12m
1 stop
United Airlines Logo
4:40 pm - 8:17 pm
STL
-
HDN
4h 37m
1 stop
$351United Airlines
Tue, Nov 17 - Wed, Nov 18
United Airlines Logo
1:22 pm - 8:34 pm
HDN
-
STL
6h 12m
1 stop
United Airlines Logo
7:30 am - 8:17 pm
STL
-
HDN
13h 47m
2 stops
$356United Airlines
Tue, Nov 17 - Wed, Nov 18
United Airlines Logo
1:22 pm - 11:09 pm
HDN
-
STL
8h 47m
2 stops
United Airlines Logo
9:40 am - 8:17 pm
STL
-
HDN
11h 37m
2 stops
$405United Airlines
Tue, Nov 17 - Wed, Nov 18

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

United Airlines flights from Hayden, Colorado to St. Louis

Our best United Airlines deals on Hayden, Colorado to St. Louis flight tickets
United Airlines
Nov 17
HDN1:22 pmHayden Yampa Valley
6h 12m
1 stop
STL8:34 pmLambert-St Louis
Nov 18
STL4:40 pmLambert-St Louis
4h 37m
1 stop
HDN8:17 pmHayden Yampa Valley
$351
United Airlines
Nov 17
HDN1:22 pmHayden Yampa Valley
6h 12m
1 stop
STL8:34 pmLambert-St Louis
Nov 18
STL7:30 amLambert-St Louis
13h 47m
2 stops
HDN8:17 pmHayden Yampa Valley
$356
United Airlines
Nov 17
HDN1:22 pmHayden Yampa Valley
8h 47m
2 stops
STL11:09 pmLambert-St Louis
Nov 18
STL9:40 amLambert-St Louis
11h 37m
2 stops
HDN8:17 pmHayden Yampa Valley
$405

Southwest flights from Hayden, Colorado to St. Louis

Our best Southwest deals on Hayden, Colorado to St. Louis flight tickets
Southwest
Jun 30
HDN8:00 amHayden Yampa Valley
8h 40m
2 stops
STL5:40 pmLambert-St Louis
Jul 4
STL10:15 amLambert-St Louis
10h 25m
2 stops
HDN7:40 pmHayden Yampa Valley
$478
Southwest
Jun 30
HDN8:00 amHayden Yampa Valley
6h 45m
2 stops
STL3:45 pmLambert-St Louis
Jul 3
STL4:00 pmLambert-St Louis
4h 20m
1 stop
HDN7:20 pmHayden Yampa Valley
$589
Southwest
Jun 30
HDN8:00 amHayden Yampa Valley
9h 00m
2 stops
STL6:00 pmLambert-St Louis
Jul 3
STL11:25 amLambert-St Louis
8h 55m
2 stops
HDN7:20 pmHayden Yampa Valley
$634

momondo Fare Finder

 
Customize your flight search to find flights from Hayden, Colorado 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, momondo users made 832,500 searches. Data last updated June 25, 2026.
Use the filters below to find and compare flights from Hayden, Colorado to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

HaydenSt. Louis

HDN - STL

HDNSTL

Hayden Yampa Valley

Tue 11/17

1:22 pm-8:34 pm

1 stop6h 12m

Lambert-St Louis

Wed 11/18

4:40 pm-8:17 pm

1 stop4h 37m

$351

HaydenSt. Louis

HDN - STL

HDNSTL

Hayden Yampa Valley

Tue 11/17

1:22 pm-8:34 pm

1 stop6h 12m

Lambert-St Louis

Wed 11/18

7:30 am-8:17 pm

2 stops13h 47m

$356

HaydenSt. Louis

HDN - STL

HDNSTL

Hayden Yampa Valley

Tue 11/17

1:22 pm-11:09 pm

2 stops8h 47m

Lambert-St Louis

Wed 11/18

9:40 am-8:17 pm

2 stops11h 37m

$405

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Hayden, Colorado to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Hayden, Colorado to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Hayden, Colorado to St. Louis (HDN to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hayden, Colorado to St. Louis

Fastest flight time

6h 12m

Direct flights

None
The fastest flight from Hayden, Colorado to St. Louis takes 6h 12m
There are no direct flights from Hayden, Colorado to St. Louis. There are no popular flight routes from Hayden, Colorado to St. Louis.
Search flight deals

Frequently asked questions about flying from Hayden, Colorado to St. Louis

  • How far is Hayden Yampa Valley to Lambert-St Louis by plane?

    The distance between Hayden Yampa Valley and Lambert-St Louis is about 915.7 mi. By plane, this route typically takes 6h 12m.

  • When did momondo last update prices for flights from Hayden Yampa Valley Airport to Lambert-St Louis Airport?

    Prices for flights from Hayden Yampa Valley Airport to Lambert-St Louis Airport were last updated today.

  • How many operators does momondo search for flights from Hayden Yampa Valley Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Hayden Yampa Valley Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Hayden Yampa Valley Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Hayden, Colorado to St. Louis?

Best airlines flying from Hayden, Colorado to St. Louis

Compare and see reviews for airlines that fly from Hayden, Colorado to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $264Free CancellationRating
7.4
9,887 reviews
Search United Airlines flights

Frequently asked questions about flying from Hayden, Colorado to St. Louis

  • How do I get Price Alerts for flights from Hayden, Colorado to St. Louis?

    Confirm your travel details to search for the latest offers for flights from Hayden, Colorado to St. Louis. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Hayden, Colorado to St. Louis with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Alton
Wentzville
Farmington
Fenton
Clayton
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Hayden to St. Louis?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Hayden.

Can I find flights from Hayden to St. Louis with flexible booking policies on momondo?

Yes. All flights to St. Louis from Hayden on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Hayden to St. Louis?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Hayden to St. Louis.

I’m not ready to book a flight from Hayden to St. Louis right now. Can momondo alert me if prices change?

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Hayden and alert you when they change.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 7/25
Sat 8/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States