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STL - ASE

Find cheap flights from St. Louis to Aspen from $240

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Aspen departing on 6/2. 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
0 bags
Sat 5/25
Sat 6/1

Search hundreds of travel sites at once for deals on flights to Aspen

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Aspen, 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 Aspen, as well as popular online travel agencies
In the last 7 days travelers have searched 45,119,101 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from St. Louis to Aspen (STL-ASE)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Aspen 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 and deals for you by selecting your travel dates.
Choose your dates
6:00 am - 11:15 amSTL-ASE
6h 15m1 stop
7:45 am - 3:56 pmASE-STL
7h 11m1 stop
$450Delta
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Sat, Oct 12 - Sat, Oct 19
7:44 am - 11:47 amSTL-ASE
5h 03m1 stop
4:23 pm - 10:24 pmASE-STL
5h 01m1 stop
$452American Airlines
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Mon, Sep 16 - Mon, Sep 23
1:45 pm - 6:28 pmSTL-ASE
5h 43m1 stop
9:00 am - 4:48 pmASE-STL
6h 48m1 stop
$524United Airlines
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Wed, Jul 10 - Mon, Jul 15
11:09 am - 7:55 pmSTL-ASE
9h 46m2 stops
9:10 am - 3:49 pmASE-STL
5h 39m1 stop
$539United Airlines
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Sat, Oct 12 - Sat, Oct 19
5:20 pm - 8:46 amSTL-ASE
16h 26m2 stops
9:32 am - 9:28 pmASE-STL
10h 56m1 stop
$609United Airlines
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Mon, Sep 16 - Mon, Sep 23
8:05 am - 6:28 pmSTL-ASE
11h 23m2 stops
9:00 am - 4:48 pmASE-STL
6h 48m1 stop
$665United Airlines
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Wed, Jul 10 - Mon, Jul 15
4:51 pm - 9:16 pmSTL-ASE
5h 25m1 stop
9:04 am - 9:28 pmASE-STL
11h 24m1 stop
$703United Airlines
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Wed, Sep 11 - Sun, Sep 15
11:10 am - 8:15 pmSTL-ASE
10h 05m2 stops
9:32 am - 9:28 pmASE-STL
10h 56m1 stop
$804United Airlines
Find Deal
Wed, Sep 11 - Sun, Sep 15
5:31 am - 4:08 pmSTL-ASE
11h 37m2 stops
4:23 pm - 9:31 amASE-STL
16h 08m2 stops
$986American Airlines
Find Deal
Sat, Oct 12 - Sat, Oct 19

Flights from St. Louis to Aspen - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from St. Louis to Aspen?

The average price of all flights from St. Louis to Aspen clicked on KAYAK for each day over the last 12 months.
For St. Louis to Aspen, Monday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Aspen back to St. Louis, the best deals are generally found on Monday, with Friday being the most expensive.

What is the cheapest month to fly from St. Louis to Aspen?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis to Aspen, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to Aspen is November, where tickets cost $460 on average. On the other hand, the most expensive months are May and February, where the average cost of tickets is $1,168 and $879 respectively.

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

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Delta ($240) and United Airlines ($427). The cheapest round-trip tickets were found on Delta ($450) and American Airlines ($452).

Good to know

Low season

May

High season

January

Cheapest flight

$240
Best time to beat the crowds but there is an average 86% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from St. Louis to Aspen

When to book flights from St. Louis to Aspen

Are your dates flexible? Find out the best times to travel from St. Louis to Aspen 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 Aspen

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

    In the last 3 days, the lowest price for a flight from St. Louis to Aspen was $240 for a one-way ticket and $450 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from St. Louis to Aspen are United Airlines and American Airlines. With an average price for the route of $531 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $574 and an overall rating of 7.3.

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

    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 Aspen.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Aspen 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 Aspen?

    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 Aspen with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and ASE 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 Aspen?

    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 Aspen from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from St. Louis to Aspen

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Aspen. 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 Aspen? 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.
7.4
United AirlinesOverall score based on 11255 reviews
7.1entertainment
7.7boarding
8.1crew
7.2comfort
6.7food
Airline reviews

Positive: Entertainment via phone on the short was great and my first time. Good food and wine and head phones for free. Negative: Seat hardly reclined on the long flight. Breakfast was an egg with a bun. No egg choices and rather have something sweet like bun/jam and Youghurt.

10.0 ExcellentAnonymous, Apr 2024GEG - DEN
Read more about United Airlines reviews

Positive: Entertainment via phone on the short was great and my first time. Good food and wine and head phones for free. Negative: Seat hardly reclined on the long flight. Breakfast was an egg with a bun. No egg choices and rather have something sweet like bun/jam and Youghurt.

They did get us booked on a later flight, but it made us miss our connecting flight. So, we had to stay and another state overnight with no luggage or clothes. Because they kept our luggage at airport for next flight on the next day.

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Crew is way too many times on the intercom re explaining the same thing

Amazing comfortable chairs great snacks super friendly staff pilots did excellent job. Smooth sailing all the way. Definitely be flying United more.

We waited too long to get water while the plane was on the Tarmac awaiting de-icing.

Easy peasy. Crew was great. Take-off and landing nice anc chill (good job by the pilot). Thank you UA!

The plane was delayed coming in and on the tarmac. I was coming from another flight so it made for a very long day. The stewardess kept trying to slam the overhead bins closed and I was worried that she had damaged my new luggage. They ran out of snacks and lccdsddd me a hummus box which was nice. It took them a very long time to pick up the garbage so I could not go to the washroom and had little time. To prepare for disbarment. The TV system was hard to control from the armrest and picture wasn’t clear. The crew did apologize several times for the lateness. It took the Denver airport an unusually long time to de-ice the plane.

By in large it was a good experience. The flight crew was great and that's the most important to me. Boarding was fine.

It was fine. Everything ran on time, crew was great.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

The flight was great but board was a nightmare. The gate was changed 4 times during the layover period

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Cold air blew constantly on my legs almost making me numb.

Missed the flight because of them and up geting a rental car

Delayd flight out of atl as always miss my conection in dfw no flight untill next day

Book cheap flights from St. Louis to Aspen

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Aspen found on KAYAK in the last 72 hours.
6/2Sun
1 stopDelta
6h 42mSTL-ASE
$240
6/2Sun
2 stopsUnited Airlines
16h 17mSTL-ASE
$427

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St. Louis - Aspen Flights

Departure:

St. Louis (STL)United States

Destination:

Aspen (ASE)United States

Return flight deals:

Aspen - St. Louis

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