STL - HDN

$358 Find Cheap Flights from St. Louis to Hayden

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Hayden departing on 9/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Hayden

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Hayden, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Hayden, as well as popular online travel agencies
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Flight Deals

Cheap Flights from St. Louis to Hayden (STL-HDN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Hayden that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Hayden

Sat, Sep 13 - Fri, Sep 19
United Airlines Logo
9:07 am - 12:21 pmSTL-HDN
4h 14m1 stop
United Airlines Logo
1:25 pm - 8:46 pmHDN-STL
6h 21m1 stop
$358United Airlines
Find Deal
Wed, Sep 3 - Mon, Sep 8
United Airlines Logo
4:40 pm - 8:03 pmSTL-HDN
4h 23m1 stop
United Airlines Logo
3:15 pm - 2:19 pmHDN-STL
22h 04m2 stops
$362United Airlines
Find Deal
Wed, Sep 3 - Mon, Sep 8
United Airlines Logo
8:15 am - 8:03 pmSTL-HDN
12h 48m2 stops
United Airlines Logo
3:15 pm - 2:19 pmHDN-STL
22h 04m2 stops
$367United Airlines
Find Deal
Sat, Sep 13 - Fri, Sep 19
United Airlines Logo
9:07 am - 12:21 pmSTL-HDN
4h 14m1 stop
United Airlines Logo
3:15 pm - 2:19 pmHDN-STL
22h 04m2 stops
$376United Airlines
Find Deal
Wed, Sep 3 - Mon, Sep 8
United Airlines Logo
4:40 pm - 8:03 pmSTL-HDN
4h 23m1 stop
United Airlines Logo
3:15 pm - 8:46 pmHDN-STL
4h 31m1 stop
$379United Airlines
Find Deal
Sun, Jan 4 - Sat, Jan 10
Delta Logo
7:15 am - 12:15 pmSTL-HDN
6h 00m1 stop
Delta Logo
3:14 pm - 11:10 pmHDN-STL
6h 56m1 stop
$415Delta
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Sat, Dec 20 - Thu, Dec 25
Southwest Logo
5:45 am - 1:05 pmSTL-HDN
8h 20m1 stop
Southwest Logo
11:55 am - 6:30 pmHDN-STL
5h 35m1 stop
$498Southwest
Find Deal
Sat, Dec 20 - Thu, Dec 25
Southwest Logo
5:45 am - 1:05 pmSTL-HDN
8h 20m1 stop
Southwest Logo
11:55 am - 9:35 pmHDN-STL
8h 40m2 stops
$503Southwest
Find Deal
Sun, Jan 4 - Sat, Jan 10
Delta Logo
6:00 am - 2:16 pmSTL-HDN
9h 16m2 stops
Delta Logo
3:14 pm - 11:10 pmHDN-STL
6h 56m1 stop
$554Delta
Find Deal
Sun, Dec 28 - Sat, Jan 3
Southwest Logo
5:20 am - 1:35 pmSTL-HDN
9h 15m1 stop
Southwest Logo
5:20 pm - 1:25 amHDN-STL
7h 05m1 stop
$712Southwest
Find Deal
Booking Insights

KAYAK's insights & trends for St. Louis to Hayden flights

Get data-powered insights and trends into flights from St. Louis to Hayden to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from St. Louis to Hayden?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Hayden were found on United Airlines ($358) and Delta ($415).

Good to know

Low seasonMarch
Cheapest flight$358
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 38% increase in price.
Flight from St. Louis to Hayden

When to book flights from St. Louis to Hayden

Are your dates flexible? Find out the best times to travel from St. Louis to Hayden based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Hayden

  • What is the cheapest flight from St. Louis to Hayden?

    In the last 3 days, the lowest price for a flight from St. Louis to Hayden was $358 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Hayden?

    No, a passport isn't needed to fly from St. Louis to Hayden. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from St. Louis to Hayden?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Hayden?

    Star Alliance, and SkyTeam are the airline alliances operating flights between St. Louis and Hayden, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Hayden, Southwest or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Hayden are Southwest and United Airlines. With an average price for the route of $692 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $416 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Hayden?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Hayden.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Hayden?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Hayden from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Hayden?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Hayden with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and HDN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Hayden?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Hayden from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from St. Louis to Hayden

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Hayden. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Hayden? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4244 reviews
8.1Boarding
8.0Comfort
7.5Entertainment
7.0Food
8.6Crew
Airline reviews

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

4.0 OkayGreg, Jul 2025PDX - DEN
Read more Southwest reviews

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

Very good. Sad to learn Southwest is going start to charge for bags

WiFi on the flight was not working. Thus, entertainment options were limited.

I really like open seating. I hate that I've heard this is going away. This is one of the unique things that makes Southwest my goto choice.

Multiple delays and gate changes. Arrived at final destination 6 hours late. All rental cars had been taken.

For the first time in a long time we had a flawless experience with Southwest. Both flights were early and no mechanical errors at all. We were shocked and pleasantly surprised 😮.

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Everything you need to know for your flight from St. Louis to Hayden

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