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Find cheap flights from St. Louis to Aspen from $290

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 5/25. 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 4/27
Sat 5/4

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 47,584,047 times on KAYAK, and here is why:

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Cheap flight deals from St. Louis to Aspen

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
6:04 am - 11:22 amSTL-ASE
6h 18m1 stop
1:40 pm - 10:00 pmASE-STL
7h 20m1 stop
$350Delta
Find Deal
Wed, Apr 24 - Wed, May 1
6:00 am - 11:22 amSTL-ASE
6h 22m1 stop
1:40 pm - 10:00 pmASE-STL
7h 20m1 stop
$391Delta
Find Deal
Sat, Apr 27 - Wed, May 1
9:50 am - 4:08 pmSTL-ASE
7h 18m1 stop
12:23 pm - 6:21 pmASE-STL
4h 58m1 stop
$422American Airlines
Find Deal
Sat, Aug 31 - Sat, Sep 7
5:00 am - 11:59 amSTL-ASE
7h 59m1 stop
12:30 pm - 8:16 amASE-STL
18h 46m2 stops
$444American Airlines
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Wed, Apr 24 - Wed, May 1
5:25 pm - 10:36 amSTL-ASE
18h 11m2 stops
1:10 pm - 9:15 pmASE-STL
7h 05m1 stop
$473United Airlines
Find Deal
Sat, Apr 27 - Wed, May 1
6:04 am - 11:22 amSTL-ASE
6h 18m1 stop
1:40 pm - 10:51 amASE-STL
20h 11m2 stops
$495Delta
Find Deal
Tue, Apr 23 - Wed, Apr 24
5:30 pm - 9:45 pmSTL-ASE
5h 15m1 stop
9:00 am - 4:48 pmASE-STL
6h 48m1 stop
$512United Airlines
Find Deal
Mon, Jul 8 - Fri, Jul 12
1:45 pm - 5:27 pmSTL-ASE
4h 42m1 stop
9:00 am - 4:48 pmASE-STL
6h 48m1 stop
$524United Airlines
Find Deal
Fri, Aug 2 - Tue, Aug 6
6:26 am - 6:03 pmSTL-ASE
12h 37m2 stops
10:13 am - 6:21 pmASE-STL
7h 08m1 stop
$528American Airlines
Find Deal
Sat, Aug 31 - Sat, Sep 7
5:30 pm - 9:45 pmSTL-ASE
5h 15m1 stop
6:30 pm - 2:36 pmASE-STL
19h 06m2 stops
$533United Airlines
Find Deal
Mon, Jul 8 - Fri, Jul 12

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, 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 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 United Airlines ($290) and American Airlines ($330). The cheapest round-trip tickets were found on Delta ($350) and American Airlines ($422).

How long does a flight from St. Louis to Aspen take?

Flying to Aspen from St. Louis requires at least one layover, as there are no direct flights for this route. The shortest flight duration is 4h 42m.

Good to know

Low season

May

High season

January

Cheapest flight

$290
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 $290 for a one-way ticket and $350 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?

    Star Alliance, oneworld, and SkyTeam 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

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 KAYAK reviews.
7.4
United AirlinesOverall score based on 11481 reviews
72comfort
74overall
77boarding
67food
71entertainment
81crew
Airline reviews

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.

Read more about United Airlines

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.

Staff friendly and app worked really well. Modest delays were frustrating

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

Flight was good and arrived a little early. Very good.

Gossipy flight attendants talked the whole flight about bar hopping and dating.

Turbulence was bad and flight attendants gossiped about going to the bar and dating. Could have better awareness.

When we exited the plane our wheelchair wasn’t there. The Pilot and co pilot were so nice and helped us locate it. Great service.

Didn't like the 6 hour delay as it caused me to miss all of my connections. Still, I did get home safely 14 hours late but exhausted.

New ridiculous policy by american destroyed my allegiance to american. As a million miler with american, I expected it would be easy to get on an earlier flight when I got to airport earlier than expected, and save a five hour layover. WRONG. The online app would not let me switch flights, So I called, and was promised a call back in 90 minutes. HAH! The customer service desk at DCA said “we no longer have access to changing a flight on our screens. If the app couldn’t do it, I should send a letter to American, but there’s nothing else possible!”

Same basket of unhealthy prepackaged snacks (junk food) which was depleted by the time it got to my row!!

Lots of weather delays that were poorly communicated and managed. I get there are weather delays but they didn’t make it clear what was happening or comfortable on the plane

Flight attendants had no personality! The looked miserable! My seat was broken in first class. I can’t believe how American Airlines changed. 😞

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.
5/25Sat
1 stopUnited Airlines
4h 25mSTL-ASE
$290
4/10Wed
1 stopAmerican Airlines
7h 59mSTL-ASE
$330
4/10Wed
2 stopsUnited Airlines
22h 26mSTL-ASE
$530
5/25Sat
2 stopsAmerican Airlines
29h 16mSTL-ASE
$581
4/10Wed
3 stopsUnited Airlines
14h 31mSTL-ASE
$1,059

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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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