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Cheap flights from Hayden, Colorado to St. Louis from $321

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 11/7. 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
7:15 am - 12:38 pmHDN  Hayden Yampa Valley-STL Lambert-St Louis
4h 23m1 stop Denver Intl
United Airlines Logo
8:50 am - 12:25 pmSTL  Lambert-St Louis-HDN Hayden Yampa Valley
4h 35m1 stop Denver Intl
$321United Airlines
Sat, Nov 7 - Wed, Nov 11
United Airlines Logo
7:15 am - 12:38 pmHDN  Hayden Yampa Valley-STL Lambert-St Louis
4h 23m1 stop Denver Intl
United Airlines Logo
9:59 am - 8:32 pmSTL  Lambert-St Louis-HDN Hayden Yampa Valley
11h 33m2 stops Newark Denver Intl
$326United Airlines
Sat, Nov 7 - Wed, Nov 11
United Airlines Logo
1:27 pm - 11:24 pmHDN  Hayden Yampa Valley-STL Lambert-St Louis
8h 57m2 stops Denver Intl Chicago O'Hare Intl
United Airlines Logo
10:53 am - 8:32 pmSTL  Lambert-St Louis-HDN Hayden Yampa Valley
10h 39m2 stops Chicago O'Hare Intl Denver Intl
$331United Airlines
Sat, Nov 7 - Wed, Nov 11
United Airlines Logo
3:10 pm - 8:46 pmHDN  Hayden Yampa Valley-STL Lambert-St Louis
4h 36m1 stop Denver Intl
United Airlines Logo
9:00 am - 2:29 pmSTL  Lambert-St Louis-HDN Hayden Yampa Valley
6h 29m1 stop Denver Intl
$412United Airlines
Fri, Aug 28 - Sun, Aug 30
United Airlines Logo
1:30 pm - 10:59 pmHDN  Hayden Yampa Valley-STL Lambert-St Louis
8h 29m2 stops Denver Intl Chicago O'Hare Intl
United Airlines Logo
9:00 am - 2:29 pmSTL  Lambert-St Louis-HDN Hayden Yampa Valley
6h 29m1 stop Denver Intl
$417United Airlines
Fri, Aug 28 - Sun, Aug 30
Southwest Logo
8:15 am - 5:20 pmHDN  Hayden Yampa Valley-STL Lambert-St Louis
8h 05m2 stops Denver Intl Austin Bergstrom
Southwest Logo
12:30 pm - 7:50 pmSTL  Lambert-St Louis-HDN Hayden Yampa Valley
8h 20m2 stops Dallas Love Field Denver Intl
$418Southwest
Fri, Sep 18 - Sun, Sep 20
United Airlines Logo
3:10 pm - 11:31 pmHDN  Hayden Yampa Valley-STL Lambert-St Louis
7h 21m1 stop Denver Intl
United Airlines Logo
9:00 am - 12:28 pmSTL  Lambert-St Louis-HDN Hayden Yampa Valley
4h 28m1 stop Denver Intl
$435United Airlines
Thu, Sep 17 - Mon, Sep 21
United Airlines Logo
1:30 pm - 8:38 pmHDN  Hayden Yampa Valley-STL Lambert-St Louis
6h 08m1 stop Denver Intl
United Airlines Logo
4:40 pm - 8:24 pmSTL  Lambert-St Louis-HDN Hayden Yampa Valley
4h 44m1 stop Denver Intl
$435United Airlines
Thu, Sep 17 - Mon, Sep 21
United Airlines Logo
1:30 pm - 10:01 pmHDN  Hayden Yampa Valley-STL Lambert-St Louis
7h 31m2 stops Denver Intl Chicago O'Hare Intl
United Airlines Logo
6:00 am - 12:28 pmSTL  Lambert-St Louis-HDN Hayden Yampa Valley
7h 28m2 stops Chicago O'Hare Intl Denver Intl
$445United Airlines
Fri, Aug 28 - Sun, Aug 30
Southwest Logo
8:15 am - 3:15 pmHDN  Hayden Yampa Valley-STL Lambert-St Louis
6h 00m1 stop Denver Intl
Southwest Logo
12:30 pm - 7:50 pmSTL  Lambert-St Louis-HDN Hayden Yampa Valley
8h 20m2 stops Dallas Love Field Denver Intl
$451Southwest
Fri, Sep 18 - Sun, Sep 20

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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 7
HDN7:15 amHayden Yampa Valley
4h 23m
1 stop
STL12:38 pmLambert-St Louis
Nov 11
STL8:50 amLambert-St Louis
4h 35m
1 stop
HDN12:25 pmHayden Yampa Valley
$321
United Airlines
Nov 7
HDN7:15 amHayden Yampa Valley
4h 23m
1 stop
STL12:38 pmLambert-St Louis
Nov 11
STL9:59 amLambert-St Louis
11h 33m
2 stops
HDN8:32 pmHayden Yampa Valley
$326
United Airlines
Nov 7
HDN1:27 pmHayden Yampa Valley
8h 57m
2 stops
STL11:24 pmLambert-St Louis
Nov 11
STL10:53 amLambert-St Louis
10h 39m
2 stops
HDN8:32 pmHayden Yampa Valley
$331

Southwest flights from Hayden, Colorado to St. Louis

Our best Southwest deals on Hayden, Colorado to St. Louis flight tickets
Southwest
Sep 18
HDN8:15 amHayden Yampa Valley
8h 05m
2 stops
STL5:20 pmLambert-St Louis
Sep 20
STL12:30 pmLambert-St Louis
8h 20m
2 stops
HDN7:50 pmHayden Yampa Valley
$418
Southwest
Sep 18
HDN8:15 amHayden Yampa Valley
6h 00m
1 stop
STL3:15 pmLambert-St Louis
Sep 20
STL12:30 pmLambert-St Louis
8h 20m
2 stops
HDN7:50 pmHayden Yampa Valley
$451
Southwest
Aug 21
HDN8:40 amHayden Yampa Valley
7h 40m
2 stops
STL5:20 pmLambert-St Louis
Aug 23
STL11:20 amLambert-St Louis
9h 25m
2 stops
HDN7:45 pmHayden Yampa Valley
$507

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 August 11, 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 Hayden Yampa Valley - STL Lambert-St Louis

HDNSTL

Hayden Yampa Valley

Sat 11/7

7:15 am-12:38 pm

1 stop4h 23m

Lambert-St Louis

Wed 11/11

8:50 am-12:25 pm

1 stop4h 35m

$321

HaydenSt. Louis

HDN Hayden Yampa Valley - STL Lambert-St Louis

HDNSTL

Hayden Yampa Valley

Sat 11/7

7:15 am-12:38 pm

1 stop4h 23m

Lambert-St Louis

Wed 11/11

9:59 am-8:32 pm

2 stops11h 33m

$326

HaydenSt. Louis

HDN Hayden Yampa Valley - STL Lambert-St Louis

HDNSTL

Hayden Yampa Valley

Sat 11/7

1:27 pm-11:24 pm

2 stops8h 57m

Lambert-St Louis

Wed 11/11

10:53 am-8:32 pm

2 stops10h 39m

$331

HaydenSt. Louis

HDN Hayden Yampa Valley - STL Lambert-St Louis

HDNSTL

Hayden Yampa Valley

Fri 8/28

3:10 pm-8:46 pm

1 stop4h 36m

Lambert-St Louis

Sun 8/30

9:00 am-2:29 pm

1 stop6h 29m

$412

HaydenSt. Louis

HDN Hayden Yampa Valley - STL Lambert-St Louis

HDNSTL

Hayden Yampa Valley

Fri 8/28

1:30 pm-10:59 pm

2 stops8h 29m

Lambert-St Louis

Sun 8/30

9:00 am-2:29 pm

1 stop6h 29m

$417

HaydenSt. Louis

HDN Hayden Yampa Valley - STL Lambert-St Louis

HDNSTL

Hayden Yampa Valley

Fri 9/18

8:15 am-5:20 pm

2 stops8h 05m

Lambert-St Louis

Sun 9/20

12:30 pm-7:50 pm

2 stops8h 20m

$418

HaydenSt. Louis

HDN Hayden Yampa Valley - STL Lambert-St Louis

HDNSTL

Hayden Yampa Valley

Thu 9/17

3:10 pm-11:31 pm

1 stop7h 21m

Lambert-St Louis

Mon 9/21

9:00 am-12:28 pm

1 stop4h 28m

$435

HaydenSt. Louis

HDN Hayden Yampa Valley - STL Lambert-St Louis

HDNSTL

Hayden Yampa Valley

Thu 9/17

1:30 pm-8:38 pm

1 stop6h 08m

Lambert-St Louis

Mon 9/21

4:40 pm-8:24 pm

1 stop4h 44m

$435

HaydenSt. Louis

HDN Hayden Yampa Valley - STL Lambert-St Louis

HDNSTL

Hayden Yampa Valley

Fri 8/28

1:30 pm-10:01 pm

2 stops7h 31m

Lambert-St Louis

Sun 8/30

6:00 am-12:28 pm

2 stops7h 28m

$445

HaydenSt. Louis

HDN Hayden Yampa Valley - STL Lambert-St Louis

HDNSTL

Hayden Yampa Valley

Fri 9/18

8:15 am-3:15 pm

1 stop6h 00m

Lambert-St Louis

Sun 9/20

12:30 pm-7:50 pm

2 stops8h 20m

$451

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Hayden, Colorado to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Hayden Yampa Valley to Lambert-St Louis?

Southwest and United Airlines are the most popular carriers operating from Hayden Yampa Valley to Lambert-St Louis

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

4h 23m

Direct flights

None
The fastest flight from Hayden, Colorado to St. Louis takes 4h 23m
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 4h 23m.

  • 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
10,104 reviews
Search United Airlines flights

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
St. Peters
Maryland Heights
Collinsville
Florissant
Alton
O'Fallon
Farmington
Clayton
Fenton
Festus
Wentzville
Eureka
Edwardsville
Litchfield
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.

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