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Cheap flights from Hayden, Colorado to St. Louis from $356

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 6/2. 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
0 bags

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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
3:20 pm - 9:10 pm
HDN
-
STL
4h 50m
1 stop
United Airlines Logo
10:25 am - 8:07 pm
STL
-
HDN
10h 42m
2 stops
$356United Airlines
Tue, Jun 2 - Wed, Jun 3
United Airlines Logo
1:29 pm - 8:39 pm
HDN
-
STL
6h 10m
1 stop
United Airlines Logo
9:00 am - 12:35 pm
STL
-
HDN
4h 35m
1 stop
$393United Airlines
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
3:20 pm - 9:10 pm
HDN
-
STL
4h 50m
1 stop
United Airlines Logo
4:48 pm - 8:07 pm
STL
-
HDN
4h 19m
1 stop
$397United Airlines
Tue, Jun 2 - Wed, Jun 3
United Airlines Logo
1:29 pm - 11:00 pm
HDN
-
STL
8h 31m
2 stops
United Airlines Logo
9:00 am - 12:35 pm
STL
-
HDN
4h 35m
1 stop
$398United Airlines
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
1:29 pm - 9:22 pm
HDN
-
STL
6h 53m
2 stops
United Airlines Logo
7:01 am - 8:29 pm
STL
-
HDN
14h 28m
2 stops
$403United Airlines
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
3:20 pm - 8:39 pm
HDN
-
STL
4h 19m
1 stop
United Airlines Logo
5:10 am - 12:35 pm
STL
-
HDN
8h 25m
1 stop
$414United Airlines
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
1:29 pm - 11:00 pm
HDN
-
STL
8h 31m
2 stops
United Airlines Logo
5:10 am - 12:35 pm
STL
-
HDN
8h 25m
1 stop
$419United Airlines
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
1:29 pm - 11:00 pm
HDN
-
STL
8h 31m
2 stops
United Airlines Logo
7:01 am - 8:29 pm
STL
-
HDN
14h 28m
2 stops
$425United Airlines
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
7:25 am - 11:36 pm
HDN
-
STL
15h 11m
2 stops
United Airlines Logo
10:25 am - 8:07 pm
STL
-
HDN
10h 42m
2 stops
$465United Airlines
Tue, Jun 2 - Wed, Jun 3
United Airlines Logo
1:29 pm - 9:22 pm
HDN
-
STL
6h 53m
2 stops
United Airlines Logo
7:30 am - 8:29 pm
STL
-
HDN
13h 59m
2 stops
$473United Airlines
Tue, Aug 25 - Wed, Aug 26

United Airlines flights from Hayden, Colorado to St. Louis

Our best United Airlines deals on Hayden, Colorado to St. Louis flight tickets
United Airlines
Jun 2
HDN3:20 pmHayden Yampa Valley
4h 50m
1 stop
STL9:10 pmLambert-St Louis
Jun 3
STL10:25 amLambert-St Louis
10h 42m
2 stops
HDN8:07 pmHayden Yampa Valley
$356
United Airlines
Aug 25
HDN1:29 pmHayden Yampa Valley
6h 10m
1 stop
STL8:39 pmLambert-St Louis
Aug 26
STL9:00 amLambert-St Louis
4h 35m
1 stop
HDN12:35 pmHayden Yampa Valley
$393
United Airlines
Jun 2
HDN3:20 pmHayden Yampa Valley
4h 50m
1 stop
STL9:10 pmLambert-St Louis
Jun 3
STL4:48 pmLambert-St Louis
4h 19m
1 stop
HDN8:07 pmHayden Yampa Valley
$397

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 May 6, 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

HaydenSt. Louis

HDN - STL

HDNSTL

Hayden Yampa Valley

Tue 6/2

3:20 pm-9:10 pm

1 stop4h 50m

Lambert-St Louis

Wed 6/3

10:25 am-8:07 pm

2 stops10h 42m

$356

HaydenSt. Louis

HDN - STL

HDNSTL

Hayden Yampa Valley

Tue 8/25

1:29 pm-8:39 pm

1 stop6h 10m

Lambert-St Louis

Wed 8/26

9:00 am-12:35 pm

1 stop4h 35m

$393
Quickest round-trip

HaydenSt. Louis

HDN - STL

HDNSTL

Hayden Yampa Valley

Tue 6/2

3:20 pm-9:10 pm

1 stop4h 50m

Lambert-St Louis

Wed 6/3

4:48 pm-8:07 pm

1 stop4h 19m

$397

HaydenSt. Louis

HDN - STL

HDNSTL

Hayden Yampa Valley

Tue 8/25

1:29 pm-11:00 pm

2 stops8h 31m

Lambert-St Louis

Wed 8/26

9:00 am-12:35 pm

1 stop4h 35m

$398

HaydenSt. Louis

HDN - STL

HDNSTL

Hayden Yampa Valley

Tue 8/25

1:29 pm-9:22 pm

2 stops6h 53m

Lambert-St Louis

Wed 8/26

7:01 am-8:29 pm

2 stops14h 28m

$403

HaydenSt. Louis

HDN - STL

HDNSTL

Hayden Yampa Valley

Tue 8/25

3:20 pm-8:39 pm

1 stop4h 19m

Lambert-St Louis

Wed 8/26

5:10 am-12:35 pm

1 stop8h 25m

$414

HaydenSt. Louis

HDN - STL

HDNSTL

Hayden Yampa Valley

Tue 8/25

1:29 pm-11:00 pm

2 stops8h 31m

Lambert-St Louis

Wed 8/26

5:10 am-12:35 pm

1 stop8h 25m

$419

HaydenSt. Louis

HDN - STL

HDNSTL

Hayden Yampa Valley

Tue 8/25

1:29 pm-11:00 pm

2 stops8h 31m

Lambert-St Louis

Wed 8/26

7:01 am-8:29 pm

2 stops14h 28m

$425

HaydenSt. Louis

HDN - STL

HDNSTL

Hayden Yampa Valley

Tue 6/2

7:25 am-11:36 pm

2 stops15h 11m

Lambert-St Louis

Wed 6/3

10:25 am-8:07 pm

2 stops10h 42m

$465

HaydenSt. Louis

HDN - STL

HDNSTL

Hayden Yampa Valley

Tue 8/25

1:29 pm-9:22 pm

2 stops6h 53m

Lambert-St Louis

Wed 8/26

7:30 am-8:29 pm

2 stops13h 59m

$473

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 10m

Direct flights

None
The fastest flight from Hayden, Colorado to St. Louis takes 6h 10m
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 10m.

  • 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 $278Free CancellationRating
7.4
9,684 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
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

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.

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