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STL - ASE

Find cheap flights from St. Louis to Aspen from $334

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 6/20. 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
Fri 6/7
Fri 6/14

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 43,707,506 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

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

Bundle and saveSave money when you bundle your flight + hotel.

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
4:45 pm - 9:17 pmSTL-ASE
5h 32m1 stop
2:30 pm - 8:49 pmASE-STL
5h 19m1 stop
$381United Airlines
Find Deal
Tue, Jun 4 - Fri, Jun 7
5:04 pm - 10:54 amSTL-ASE
18h 50m2 stops
12:20 pm - 10:02 pmASE-STL
8h 42m1 stop
$582American Airlines
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Tue, Jun 4 - Fri, Jun 7
4:51 pm - 9:16 pmSTL-ASE
5h 25m1 stop
9:04 am - 9:28 pmASE-STL
11h 24m1 stop
$698United Airlines
Find Deal
Wed, Sep 11 - Sun, Sep 15
5:54 am - 9:56 amSTL-ASE
5h 02m1 stop
12:21 pm - 7:58 pmASE-STL
6h 37m1 stop
$742American Airlines
Find Deal
Thu, Sep 12 - Sun, Sep 15
11:10 am - 9:16 pmSTL-ASE
11h 06m2 stops
9:04 am - 9:28 pmASE-STL
11h 24m1 stop
$755United Airlines
Find Deal
Wed, Sep 11 - Sun, Sep 15
5:31 pm - 10:49 amSTL-ASE
18h 18m1 stop
8:52 am - 4:29 pmASE-STL
6h 37m1 stop
$826United Airlines
Find Deal
Fri, Jun 21 - Sun, Jun 23
11:10 am - 8:15 pmSTL-ASE
10h 05m2 stops
9:04 am - 9:28 pmASE-STL
11h 24m1 stop
$864United Airlines
Find Deal
Thu, Sep 12 - Sun, Sep 15
4:45 pm - 1:13 pmSTL-ASE
21h 28m2 stops
8:52 am - 4:29 pmASE-STL
6h 37m1 stop
$894United Airlines
Find Deal
Fri, Jun 21 - Sun, Jun 23
6:26 am - 4:08 pmSTL-ASE
10h 42m2 stops
12:21 pm - 11:20 pmASE-STL
9h 59m2 stops
$1,155American Airlines
Find Deal
Thu, Sep 12 - Sun, Sep 15
6:00 am - 5:56 pmSTL-ASE
12h 56m2 stops
12:20 pm - 12:03 amASE-STL
10h 43m2 stops
$1,304American Airlines
Find Deal
Fri, Jun 21 - Sun, Jun 23

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.

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 American Airlines ($334) and United Airlines ($527). The cheapest round-trip tickets were found on United Airlines ($381) and American Airlines ($582).

Good to know

Low season

June

High season

March

Cheapest flight

$334
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 2% 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 $334 for a one-way ticket and $381 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?

    oneworld, and Star Alliance 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 $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 11073 reviews
7.1Entertainment
6.7Food
7.2Comfort
8.1Crew
7.7Boarding
Airline reviews

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

2.0 Mediocretimothy, May 2024SBA - DEN
Read more about United Airlines reviews

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

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.

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

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.
6/20Thu
1 stopAmerican Airlines
5h 48mSTL-ASE
$334
6/20Thu
2 stopsUnited Airlines
24h 34mSTL-ASE
$527

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St. Louis - Aspen Flights

Departure:

St. Louis (undefined)United States

Destination:

Aspen (ASE)United States

Return flight deals:

Aspen - St. Louis

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