ASE - STL

$174 Find Cheap Flights from Aspen to St. Louis - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Aspen to St. Louis departing on 7/29. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Aspen to St. Louis, 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 Aspen to St. Louis, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$329
American Airlines
Thu 8/27Mon 8/31
ASE - STL • 1 stop
Cheapest one-way
$174
United Airlines
Wed 7/29
ASE - STL • 1 stop
Top airlines
Cheapest • from $329 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Aspen and St. Louis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $228 (round-trip)
Shortest trip • 4h 52m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Aspen to St. Louis 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.

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

Thu, Aug 27 - Mon, Aug 31
American Airlines Logo
7:30 am - 2:45 pm
ASE
-
STL
6h 15m
1 stop
American Airlines Logo
5:42 am - 12:20 pm
STL
-
ASE
7h 38m
1 stop
$329American Airlines
Sat, Oct 31 - Tue, Nov 3
United Airlines Logo
1:00 pm - 8:59 pm
ASE
-
STL
6h 59m
1 stop
United Airlines Logo
9:13 am - 12:26 pm
STL
-
ASE
4h 13m
1 stop
$409United Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
8:30 am - 4:34 pm
ASE
-
STL
7h 04m
1 stop
United Airlines Logo
8:00 am - 3:08 pm
STL
-
ASE
8h 08m
2 stops
$414United Airlines
Thu, Aug 27 - Mon, Aug 31
United Airlines Logo
1:15 pm - 10:00 pm
ASE
-
STL
7h 45m
2 stops
United Airlines Logo
8:00 am - 5:18 pm
STL
-
ASE
10h 18m
2 stops
$419United Airlines
Thu, Jun 25 - Sun, Jun 28
American Airlines Logo
7:36 am - 4:33 pm
ASE
-
STL
7h 57m
1 stop
American Airlines Logo
5:29 am - 10:00 am
STL
-
ASE
5h 31m
1 stop
$505American Airlines
Thu, Jul 9 - Sun, Jul 12
United Airlines Logo
11:32 am - 9:26 pm
ASE
-
STL
8h 54m
2 stops
United Airlines Logo
5:10 am - 8:47 am
STL
-
ASE
4h 37m
1 stop
$540United Airlines
Fri, Jun 26 - Sun, Jun 28
United Airlines Logo
2:22 pm - 11:29 pm
ASE
-
STL
8h 07m
2 stops
United Airlines Logo
5:10 am - 8:47 am
STL
-
ASE
4h 37m
1 stop
$552United Airlines
Sun, Jun 28 - Thu, Jul 2
United Airlines Logo
5:10 pm - 11:57 pm
ASE
-
STL
5h 47m
1 stop
United Airlines Logo
5:10 am - 10:51 am
STL
-
ASE
6h 41m
1 stop
$599United Airlines
Mon, Jun 29 - Wed, Jul 1
United Airlines Logo
1:07 pm - 9:26 pm
ASE
-
STL
7h 19m
2 stops
United Airlines Logo
5:10 am - 8:46 am
STL
-
ASE
4h 36m
1 stop
$714United Airlines
Thu, Jun 25 - Sun, Jun 28
United Airlines Logo
7:00 am - 9:26 pm
ASE
-
STL
13h 26m
2 stops
United Airlines Logo
5:10 am - 8:47 am
STL
-
ASE
4h 37m
1 stop
$718United Airlines
Booking Insights

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

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

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

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Aspen to St. Louis were found on American Airlines ($329) and United Airlines ($409).

Good to know

Cheapest flight$174
Flight from Aspen to St. Louis

When to book flights from Aspen to St. Louis

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

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

    In the last 5 days, the lowest price for a flight from Aspen to St. Louis was $174 for a one-way ticket and $329 for a round-trip.

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

    No

  • Which airports will I be using when flying from Aspen to St. Louis?

    When flying out of Aspen you will be using Aspen Pitkin County. You will be landing at St. Louis, also known as Lambert-St Louis.

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

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

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

    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 Aspen to St. Louis.

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

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

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

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

Reviews of the top airline flying from Aspen to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Aspen to St. Louis. 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 Aspen to St. Louis? 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 9830 reviews
8.1Crew
7.3Comfort
6.6Food
7.1Entertainment
7.7Boarding
Airline reviews

This planes staff was top tier. Everything went great and had a great flight home.

10.0 ExcellentKati, Jun 2026
DEN - DFW
Read more United Airlines reviews

This planes staff was top tier. Everything went great and had a great flight home.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

It was a short flight so I was expecting too much

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

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

Information on your arrival and departure airports