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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 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
ASE — STL
Jun 8 — Jun 151
Mon 6/8
Mon 6/15
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 May 9, 2026.

This American Airlines deal was found by Cheapflights users on 5/6. 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 8/277:00 am
ASE
-
STL
1 stop8h 24m
American Airlines
Mon 8/316:42 am
STL
-
ASE
1 stop8h 08m
American Airlines
Deal found 5/6$329
This United Airlines deal was found by Cheapflights users on 5/6. 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.
Tue 8/253:25 pm
ASE
-
STL
1 stop7h 25m
United Airlines
Sat 8/294:40 pm
STL
-
ASE
1 stop4h 31m
United Airlines
Deal found 5/6$409
This United Airlines deal was found by Cheapflights users on 5/8. 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 8/273:20 pm
ASE
-
STL
1 stop4h 18m
United Airlines
Mon 8/318:00 am
STL
-
ASE
2 stops8h 08m
United Airlines
Deal found 5/8$414
This United Airlines deal was found by Cheapflights users on 5/7. 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 9/21:14 pm
ASE
-
STL
2 stops7h 46m
United Airlines
Sat 9/59:16 am
STL
-
ASE
2 stops10h 27m
United Airlines
Deal found 5/7$594
This American Airlines deal was found by Cheapflights users on 5/5. 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.
Wed 6/311:35 am
ASE
-
STL
2 stops11h 24m
American Airlines
Wed 6/107:03 am
STL
-
ASE
2 stops14h 33m
American Airlines
Deal found 5/5$650

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 May 9, 2026.

Round-trip from

$329
(American Airlines)

One-way from

$174
(American Airlines)
From Aspen Pitkin County to Lambert-St Louis
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One-way flight from Aspen Pitkin County to Lambert-St Louis
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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 May 9, 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

Wed 6/3

2:22 pm-9:10 pm

1 stop5h 48m

Lambert-St Louis

Wed 6/10

5:10 am-8:46 am

1 stop4h 36m

$329

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Tue 8/25

3:25 pm-8:39 pm

1 stop4h 14m

Lambert-St Louis

Sat 8/29

9:00 am-3:08 pm

1 stop7h 08m

$409
Quickest round-trip

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Wed 9/2

3:20 pm-8:38 pm

1 stop4h 18m

Lambert-St Louis

Sat 9/5

4:40 pm-8:16 pm

1 stop4h 36m

$409

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 8/27

11:25 am-4:34 pm

1 stop4h 09m

Lambert-St Louis

Mon 8/31

8:00 am-5:18 pm

2 stops10h 18m

$414
Cheapest one-way

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Tue 6/23

1:22 pm-9:10 pm

1 stop6h 48m

$214

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Wed 6/17

1:22 pm-9:10 pm

1 stop6h 48m

$214

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 6/18

11:32 am-9:21 pm

2 stops8h 49m

$346
Quickest one-way

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Sun 6/21

6:12 pm-11:57 pm

1 stop4h 45m

$451

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/5

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 5h 48m. 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.

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
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

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