How long is the flight from Hayden, Colorado to St. Louis?

Departing from Hayden, Colorado to St. Louis will take you 6h 20m. The distance from Hayden, Colorado to St. Louis is about 903 mi.

What is the cheapest airline to fly from Hayden, Colorado to St. Louis round-trip?

According to our current data, United Airlines ($264), offers the cheapest pricing from Hayden, Colorado to St. Louis.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest time of day to fly from HDN to STL?

When flying from Hayden, Colorado to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Hayden, Colorado-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hayden, Colorado-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Hayden, Colorado-St. Louis flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Hayden, Colorado-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Hayden, Colorado-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Hayden to St. Louis that include hotel bookings?

Yes. In addition to deals on Hayden to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Hayden to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hayden to St. Louis.

Can I find deals for business class flights from Hayden to St. Louis?

Yes. Cheapflights offers flight deals from Hayden to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$239+ Cheap Flights from Hayden, CO to St. Louis

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Cheap flight deals from Hayden to St. Louis

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Best

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Cheapest flights from Hayden to St. Louis
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 September 12, 2026.

Fri 9/113:10 pm -

1 stop7h 30m

Wed 9/169:00 am -

1 stop6h 29m

Deal found 9/7

$499

Thu 9/103:10 pm -

1 stop7h 21m

Fri 9/114:40 pm -

1 stop4h 44m

Deal found 9/9

$559

Mon 12/211:55 pm -

1 stop6h 20m

Sat 12/265:35 am -

1 stop6h 50m

Deal found 9/7

$656

Find flight deals from Hayden to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$656 (Southwest)
One-way from	$239 (United Airlines)

Provider with most accurate pricing for Hayden Yampa Valley-Lambert-St Louis flight deals.

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From Hayden Yampa Valley to Lambert-St Louis

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One-way flight from Hayden Yampa Valley to Lambert-St Louis

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Fly from

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Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

HaydenSt. Louis

HDN Hayden Yampa Valley - STL Lambert-St Louis

HDNSTL

Hayden Yampa Valley

Fri 10/9

1:43 pm-8:36 pm

1 stop5h 53m

Lambert-St Louis

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$239

HaydenSt. Louis

HDN Hayden Yampa Valley - STL Lambert-St Louis

HDNSTL

Hayden Yampa Valley

Fri 10/9

8:45 am-7:00 pm

2 stops9h 15m

Lambert-St Louis

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$400

HaydenSt. Louis

HDN Hayden Yampa Valley - STL Lambert-St Louis

HDNSTL

Hayden Yampa Valley

Mon 12/21

1:55 pm-9:15 pm

1 stop6h 20m

Lambert-St Louis

Sat 12/26

5:35 am-11:25 am

1 stop6h 50m

$656

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/7

Sorted by cheapest first

Most accurate provider: When it comes to deals on Hayden, Colorado-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hayden, Colorado-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Hayden, Colorado-St. Louis flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Hayden, Colorado-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Hayden, Colorado-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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.

United Airlines

7.4

Good

10,207 reviews

Reviews

1 / 20

10.0

Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

United Airlines

7.4

Good

10,207 reviews

United Airlines

7.4

Good

10,207 reviews

Reviews

1 / 20

10.0

Excellent

Michelle,Dec 2025

DEN - MKE

Related info for your journey

How long is the flight from Hayden, Colorado to St. Louis?
Departing from Hayden, Colorado to St. Louis will take you 6h 20m. The distance from Hayden, Colorado to St. Louis is about 903 mi.
What is the cheapest airline to fly from Hayden, Colorado to St. Louis round-trip?
According to our current data, United Airlines ($264), offers the cheapest pricing from Hayden, Colorado to St. Louis.
Can I find deals for flights from Hayden to St. Louis that include hotel bookings?
Yes. In addition to deals on Hayden to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Hayden to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Hayden to St. Louis.
Can I find deals for business class flights from Hayden to St. Louis?
Yes. Cheapflights offers flight deals from Hayden to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top airline flying from Hayden to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$264	Average$443	FlexibilityNo cancel fee	On-time69%

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$239+ 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Hayden to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Hayden to St. Louis

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 September 12, 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 September 12, 2026.

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 September 12, 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 September 12, 2026.

Last-minute flights from Hayden to St. LouisDiscover last-minute flight deals from Hayden to St. Louis. Data last updated September 12, 2026 and is based on user searches.

Discover last-minute flight deals from Hayden to St. Louis. Data last updated September 12, 2026 and is based on user searches.

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 September 12, 2026.

Search for one-way flight options from Hayden to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.

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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.

Reviews of airlines servicing St. Louis

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.

Related info for your journey

How long is the flight from Hayden, Colorado to St. Louis?

What is the cheapest airline to fly from Hayden, Colorado to St. Louis round-trip?

Can I find deals for flights from Hayden to St. Louis that include hotel bookings?

How can I find direct flights from Hayden to St. Louis?

Can I find deals for business class flights from Hayden to St. Louis?

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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

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Hayden and St. Louis flights

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Cheapest flights from Hayden to St. Louis
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 September 12, 2026.

Best flights from Hayden to St. Louis
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 September 12, 2026.

Last-minute flights from Hayden to St. Louis
Discover last-minute flight deals from Hayden to St. Louis. Data last updated September 12, 2026 and is based on user searches.

One-way flights from Hayden to St. Louis
Search for one-way flight options from Hayden to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.