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$174+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
ASE — STL
Jul 7 — Jul 141
Tue 7/7
Tue 7/14
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 June 7, 2026.

This United Airlines deal was found by Cheapflights users on 6/4. 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 7/162:22 pm
ASE
-
STL
1 stop5h 21m
United Airlines
Mon 7/205:10 am
STL
-
ASE
1 stop4h 36m
United Airlines
Deal found 6/4$329
This American Airlines deal was found by Cheapflights users on 6/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:30 am
ASE
-
STL
1 stop6h 15m
American Airlines
Mon 8/315:42 am
STL
-
ASE
1 stop7h 38m
American Airlines
Deal found 6/3$347
This United Airlines deal was found by Cheapflights users on 6/3. 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 8/199:15 am
ASE
-
STL
1 stop6h 19m
United Airlines
Sat 8/225:30 pm
STL
-
ASE
1 stop5h 23m
United Airlines
Deal found 6/3$409
This United Airlines deal was found by Cheapflights users on 6/2. 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 8/278:30 am
ASE
-
STL
1 stop7h 04m
United Airlines
Mon 8/318:00 am
STL
-
ASE
2 stops11h 31m
United Airlines
Deal found 6/2$414

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 June 7, 2026.

Round-trip from

$329
(United Airlines)

One-way from

$174
(United 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 June 7, 2026.
Use the filters below to find and compare flights from Aspen to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 8/27

7:00 am-4:23 pm

1 stop8h 23m

Lambert-St Louis

Mon 8/31

8:36 am-1:50 pm

1 stop6h 14m

$329
Quickest round-trip

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 7/16

6:12 pm-11:57 pm

1 stop4h 45m

Lambert-St Louis

Sun 7/19

5:10 am-8:47 am

1 stop4h 37m

$329

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 7/16

2:22 pm-8:43 pm

1 stop5h 21m

Lambert-St Louis

Mon 7/20

5:10 am-8:46 am

1 stop4h 36m

$329

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Sat 10/31

8:30 am-4:26 pm

1 stop6h 56m

Lambert-St Louis

Tue 11/3

9:13 am-12:26 pm

1 stop4h 13m

$409

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 8/27

9:15 am-4:34 pm

1 stop6h 19m

Lambert-St Louis

Mon 8/31

8:00 am-6:31 pm

2 stops11h 31m

$414
Cheapest one-way

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Fri 10/23

1:16 pm-10:30 pm

1 stop8h 14m

$174
Quickest one-way

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 6/18

10:30 am-4:33 pm

1 stop5h 03m

$228

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 6/18

2:22 pm-11:29 pm

2 stops8h 07m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/6

Sorted by cheapest first

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.

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 4h 45m. Fly via American Airlines or United Airlines to get the fastest option. The distance from Aspen to St. Louis is about 885 mi. This flight may include one or multiple stops.

  • 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.

See more FAQs

Traveling to a place near St. Louis?

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

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