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$199+ Cheap flights from Aspen to St. Louis (ASE - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
ASE — STL
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Aspen to St. Louis

Cheapest flights from Aspen to St. Louis
Explore the most affordable flight options available from Aspen to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/41:29 pm
ASE
-
STL
1 stop7h 31m
United Airlines
Sat 2/74:15 pm
STL
-
ASE
1 stop6h 44m
United Airlines
Deal found 1/21$269
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/287:45 am
ASE
-
STL
1 stop5h 45m
United Airlines
Sat 1/316:30 am
STL
-
ASE
1 stop6h 25m
United Airlines
Deal found 1/20$409
This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/512:36 pm
ASE
-
STL
2 stops9h 22m
United Airlines
Mon 2/911:20 am
STL
-
ASE
2 stops8h 19m
United Airlines
Deal found 1/21$430

Find flight deals from Aspen to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Aspen (ASE) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2026.

Round-trip from

$269
(United Airlines)

One-way from

$199
(American Airlines)
From Aspen Pitkin County to Lambert-St Louis
Search Deals
One-way flight from Aspen Pitkin County to Lambert-St Louis
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Aspen to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Aspen to St. Louis that are best for you.

Fly from

Aspen

Fly to

St. Louis

Route

Depart

Return

Price

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 2/5

8:53 am-4:55 pm

1 stop7h 02m

Lambert-St Louis

Mon 2/9

4:15 pm-8:15 pm

1 stop5h 00m

$269

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Wed 2/4

1:29 pm-10:00 pm

1 stop7h 31m

Lambert-St Louis

Sat 2/7

4:15 pm-9:59 pm

1 stop6h 44m

$269

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Sun 2/15

4:36 pm-10:58 pm

1 stop5h 22m

$199

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Sun 2/15

11:05 am-11:59 pm

2 stops11h 54m

$239

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Wed 2/4

1:09 pm-7:29 pm

1 stop5h 20m

$271

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Wed 2/4

7:44 pm-3:57 pm

3 stops43h 13m

$653

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Sun 2/15

2:23 pm-1:51 pm

3 stops22h 28m

$684

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Best time to book a flight from Aspen to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Aspen with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Aspen to St. Louis?

Currently, September is the cheapest month in which you can book a flight from Aspen to St. Louis (average of $190). Flying from Aspen to St. Louis in February is currently the most expensive (average of $458). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Aspen to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Aspen to St. Louis?

    There are many flights that can get you from Aspen to St. Louis in 7h 02m. Fly via United Airlines to get the fastest option. The distance from Aspen to St. Louis is about 885 mi.

  • Can I find deals for flights from Aspen to St. Louis that include hotel bookings?

    Yes. In addition to deals on Aspen to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Aspen to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Aspen to St. Louis.

  • Can I find deals for business class flights from Aspen to St. Louis?

    Yes. Cheapflights offers flight deals from Aspen to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, September is the cheapest month in which you can book a flight from Aspen to St. Louis (average of $190). Flying from Aspen to St. Louis in February is currently the most expensive (average of $458). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

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