STL - ASE

$497 Find Cheap Flights from St. Louis to Aspen

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 Aspen departing on 2/15. 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.
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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
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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.

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

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from St. Louis to Aspen.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:39 pm - 9:09 amSTL-ASE
17h 30m1 stop
12:45 pm - 8:44 pmASE-STL
6h 59m1 stop
$497United Airlines
Find Deal
Sat, Feb 15 - Wed, Feb 19
4:39 pm - 11:24 amSTL-ASE
19h 45m1 stop
7:32 pm - 10:47 amASE-STL
14h 15m2 stops
$587United Airlines
Find Deal
Sat, Feb 15 - Wed, Feb 19
8:00 am - 7:48 pmSTL-ASE
12h 48m2 stops
6:15 pm - 4:34 pmASE-STL
21h 19m1 stop
$717United Airlines
Find Deal
Wed, Mar 19 - Sun, Mar 23
8:00 am - 7:48 pmSTL-ASE
12h 48m2 stops
6:15 pm - 3:31 pmASE-STL
20h 16m2 stops
$752United Airlines
Find Deal
Wed, Mar 19 - Sun, Mar 23
8:00 am - 3:33 pmSTL-ASE
8h 33m1 stop
4:56 pm - 4:34 pmASE-STL
22h 38m1 stop
$797United Airlines
Find Deal
Wed, Mar 19 - Sun, Mar 23
7:02 am - 12:29 pmSTL-ASE
6h 27m1 stop
2:40 pm - 8:48 amASE-STL
17h 08m1 stop
$874American Airlines
Find Deal
Thu, Mar 13 - Sun, Mar 16
1:45 pm - 9:14 amSTL-ASE
20h 29m1 stop
6:15 pm - 3:31 pmASE-STL
20h 16m2 stops
$899United Airlines
Find Deal
Thu, Mar 13 - Sun, Mar 16
9:28 am - 4:13 pmSTL-ASE
7h 45m1 stop
4:43 pm - 8:48 amASE-STL
15h 05m1 stop
$924American Airlines
Find Deal
Thu, Mar 13 - Sun, Mar 16
7:20 am - 3:36 pmSTL-ASE
9h 16m2 stops
12:07 pm - 10:43 pmASE-STL
9h 36m2 stops
$1,068American Airlines
Find Deal
Sat, Feb 15 - Wed, Feb 19
5:55 am - 4:13 pmSTL-ASE
11h 18m2 stops
4:43 pm - 10:38 amASE-STL
16h 55m1 stop
$1,126American Airlines
Find Deal
Thu, Mar 13 - Sun, Mar 16

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 round-trip flights from St. Louis to Aspen clicked on KAYAK for each day over the last 12 months.
For St. Louis to Aspen, Tuesday 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 Thursday, with Friday being the most expensive.

Good to know

Low season

November

High season

January

Cheapest flight

$497
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly with an average 32% increase in price.
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 $497 for a round-trip ticket.

  • 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?

    Star Alliance, and oneworld are the airline alliances operating flights between St. Louis and Aspen, with oneworld 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 $562 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 $545 and an overall rating of 7.2.

  • 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 8916 reviews
7.7Boarding
8.1Crew
7.3Comfort
6.7Food
7.1Entertainment
Airline reviews

Food choices were very limited. Taste of the dishes was average.

10.0 ExcellentAmi, Jan 2025AUS - DEN
Read more United Airlines reviews

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

Liked that we left on time for each flight. Snacks not the best, but we're okay.

This was a pleasant, short flight and the crew was friendly.

Very poor. Our special services attendant gave us incorrect information. I also was mishandled at landing. There was no wheelchair waiting. I fell deboarding the plane. Appalling!

It was good. It’s been a long time since my wife and I fly any where and things have changed. Our trip was to see our new grandson. We fly economy and that was not good for my bad back. It was a quick flight but uncomfortable.

I paid for what I got which was cheap, I brought my own entertainment. I knew what to expect, so I could be prepared. If you’re flying economy, check in early like me. I have no problems with my flight, was on time, staff were friendly, and overall good experience.

Boarded over an hour late, no communication, the sign just changed, no attendant to answer questions - she disappeared forever (hiding). Small plane and couldn’t hear the overhead nor understand.

Service in first class no longer exists on American Airlines .

Customer service in first class does not exist on American Airlines

I never have a good experience with American and this was no different. The airplane was INCREDIBLY hot. Like unbearably so. Everyone was fanning themselves with pamphlets and sweating. When someone asked the flight attendant to turn down the temperature they were told there was nothing the crew could do. Once we pushed back from the gate we then had to wait an hour to take off and the communication from the crew was not good. People were getting up this whole time and a man was even in the bathroom when we took off. Once we landed at our destination we waited another 30 minutes at the gate to deplane with, again, no communication from the crew as to what was going on.

Flight was delayed due to a steering issue with plane. The delay caused me to miss the connecting flight. The delay caused me to spend an extra 21 hours in airports and flights to get to my destination. The plane issue obviously should have been found and fixed before we even boarded. Ridiculous.

First, to be fair, the flight was on time and the trip through the air was relatively smooth. But the flight was full, and they were checking carryons. As this process went on, the crew got increasingly rude and overbearing. During the drink service, a young girl (maybe 9) who had gotten up to use the lavatory got stuck behind the cart. At some point, she started feeling fearful and overwhelmed. Passengers noticed this and asked the crew to let her return to her seat. They refused. Then she started crying, and they still refused to move the cart forward to let her sit. The poor girl was trying to be brave and compose herself. The crew handled the situation terribly and with zero grace or decency. That episode, to me, encapsulates AA’s attitude toward its passengers. Disgraceful. The plane itself was cramped and miserable, as usual. There was zero inflight media or entertainment, other than the lane and borderline inappropriate jokes the steward made during the safety briefing. Then, of course, it took the better part of an hour for the checked bags to show up at the carousel. AA is no better than the el cheapo airlines these days and a far, far cry from its former self.

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

Information on your arrival and departure airports

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