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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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
ASE — STL
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Find 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 October 20, 2025.

This United Airlines deal was found by Cheapflights users on 10/18. 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.
Sat 12/63:35 pmASE - STL
1 stop4h 22mUnited Airlines
Tue 12/96:30 amSTL - ASE
1 stop6h 08mUnited Airlines
Deal found 10/18$319
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Tue 12/211:39 amASE - STL
1 stop3h 49mUnited Airlines
Fri 12/51:35 pmSTL - ASE
1 stop5h 46mUnited Airlines
Deal found 10/20$397
This United Airlines deal was found by Cheapflights users on 10/19. 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 12/111:35 pmASE - STL
1 stop7h 23mUnited Airlines
Sat 12/134:37 pmSTL - ASE
1 stop4h 41mUnited Airlines
Deal found 10/19$478
This American Airlines deal was found by Cheapflights users on 10/18. 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.
Sun 11/27:34 amASE - STL
1 stop6h 55mAmerican Airlines
Thu 11/67:00 amSTL - ASE
1 stop5h 42mAmerican Airlines
Deal found 10/18$581
This United Airlines deal was found by Cheapflights users on 10/19. 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.
Sun 11/238:30 amASE - STL
1 stop6h 58mUnited Airlines
Fri 11/289:00 amSTL - ASE
1 stop6h 36mUnited Airlines
Deal found 10/19$605
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/265:12 pmASE - STL
2 stops16h 39mUnited Airlines
Sat 11/299:00 amSTL - ASE
1 stop4h 29mUnited Airlines
Deal found 10/19$628

Cheap 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 October 20, 2025.

Round-trip from

$319
(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
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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 October 20, 2025.
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

Sat 12/6

3:35 pm-8:57 pm

1 stop4h 22m

Lambert-St Louis

Tue 12/9

6:30 am-11:38 am

1 stop6h 08m

$319

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Tue 12/2

11:39 am-4:28 pm

1 stop3h 49m

Lambert-St Louis

Fri 12/5

1:35 pm-6:21 pm

1 stop5h 46m

$397

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 12/11

1:35 pm-9:58 pm

1 stop7h 23m

Lambert-St Louis

Sat 12/13

4:37 pm-8:18 pm

1 stop4h 41m

$478

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Sun 11/2

7:34 am-3:29 pm

1 stop6h 55m

Lambert-St Louis

Thu 11/6

7:00 am-11:42 am

1 stop5h 42m

$581

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Wed 11/19

12:25 pm-7:30 pm

1 stop6h 05m

$199

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Wed 11/19

1:35 pm-10:45 pm

2 stops8h 10m

$239

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Sun 12/7

11:39 am-12:39 pm

1 stop24h 00m

$606

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/18

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 4h 22m. 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
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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