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$287+ Cheap flights from Aspen to St. Louis (ASE - STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
ASE — STL
ene. 3 — ene. 101
sáb. 1/3
sáb. 1/10
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 diciembre 4, 2025.

This United Airlines deal was found by Cheapflights users on 12/2. 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.
vie. 12/59:00 amASE - STL
1 stop7h 03mUnited Airlines
mar. 12/91:35 pmSTL - ASE
1 stop5h 46mUnited Airlines
Deal found 12/2$399
This American Airlines deal was found by Cheapflights users on 12/1. 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.
mié. 12/177:33 amASE - STL
1 stop8h 01mAmerican Airlines
dom. 12/215:16 amSTL - ASE
1 stop5h 49mAmerican Airlines
Deal found 12/1$419
This American Airlines deal was found by Cheapflights users on 12/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/47:33 amASE - STL
1 stop6h 54mAmerican Airlines
lun. 12/81:20 pmSTL - ASE
1 stop7h 14mAmerican Airlines
Deal found 12/2$459
This United Airlines deal was found by Cheapflights users on 12/2. 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.
jue. 12/48:30 amASE - STL
2 stops12h 10mUnited Airlines
lun. 12/86:30 amSTL - ASE
1 stop6h 08mUnited Airlines
Deal found 12/2$534
This American Airlines deal was found by Cheapflights users on 12/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/67:33 amASE - STL
1 stop6h 54mAmerican Airlines
mié. 12/101:20 pmSTL - ASE
1 stop7h 14mAmerican Airlines
Deal found 12/2$605
This United Airlines deal was found by Cheapflights users on 12/1. 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.
mié. 12/1711:39 amASE - STL
1 stop3h 49mUnited Airlines
dom. 12/218:15 amSTL - ASE
2 stops11h 27mUnited Airlines
Deal found 12/1$620

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 diciembre 4, 2025.

Round-trip from

$287
(United Airlines)
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 diciembre 4, 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

jue. 1/15

7:45 am-2:30 pm

1 stop5h 45m

Lambert-St Louis

dom. 1/18

6:00 pm-9:59 pm

1 stop4h 59m

$287

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

mié. 12/17

7:33 am-4:34 pm

1 stop8h 01m

Lambert-St Louis

dom. 12/21

5:16 am-10:05 am

1 stop5h 49m

$419

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

sáb. 1/10

12:36 pm-8:58 pm

1 stop7h 22m

Lambert-St Louis

mar. 1/13

8:45 am-2:44 pm

1 stop6h 59m

$427

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

mié. 12/17

11:39 am-4:28 pm

1 stop3h 49m

Lambert-St Louis

dom. 12/21

8:15 am-6:42 pm

2 stops11h 27m

$620

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

dom. 12/7

7:33 am-3:27 pm

1 stop6h 54m

Lambert-St Louis

mié. 12/10

1:20 pm-7:34 pm

1 stop7h 14m

$926

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

dom. 12/7

9:00 am-5:03 pm

1 stop7h 03m

Lambert-St Louis

mié. 12/10

10:00 am-8:18 pm

2 stops11h 18m

$941

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

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 5h 45m. Fly via United Airlines or American 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.

  • 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
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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