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Cheap flights from Aspen to St. Louis from $269

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Aspen to St. Louis departing on 3/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Aspen to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:56 am - 2:43 pm
ASE
-
STL
5h 47m
1 stop
United Airlines Logo
5:55 pm - 9:42 pm
STL
-
ASE
4h 47m
1 stop
$269United Airlines
Fri, Mar 6 - Mon, Mar 9
United Airlines Logo
1:23 pm - 10:16 pm
ASE
-
STL
7h 53m
1 stop
United Airlines Logo
10:00 am - 8:27 pm
STL
-
ASE
11h 27m
2 stops
$344United Airlines
Fri, Mar 6 - Mon, Mar 9
United Airlines Logo
12:22 pm - 9:07 pm
ASE
-
STL
7h 45m
2 stops
United Airlines Logo
10:00 am - 8:27 pm
STL
-
ASE
11h 27m
2 stops
$349United Airlines
Fri, Mar 6 - Mon, Mar 9
United Airlines Logo
6:28 pm - 11:34 pm
ASE
-
STL
4h 06m
1 stop
United Airlines Logo
10:00 am - 3:20 pm
STL
-
ASE
6h 20m
1 stop
$453United Airlines
Thu, Mar 19 - Fri, Mar 20
United Airlines Logo
7:56 am - 2:42 pm
ASE
-
STL
5h 46m
1 stop
United Airlines Logo
6:02 pm - 9:42 pm
STL
-
ASE
4h 40m
1 stop
$578United Airlines
Thu, Mar 19 - Thu, Mar 19
United Airlines Logo
5:16 pm - 11:34 pm
ASE
-
STL
5h 18m
1 stop
United Airlines Logo
7:41 am - 5:40 pm
STL
-
ASE
10h 59m
2 stops
$581United Airlines
Thu, Mar 19 - Fri, Mar 20
United Airlines Logo
7:56 am - 2:43 pm
ASE
-
STL
5h 47m
1 stop
United Airlines Logo
6:05 pm - 9:42 pm
STL
-
ASE
4h 37m
1 stop
$678United Airlines
Fri, Mar 20 - Fri, Mar 20
United Airlines Logo
6:28 pm - 11:34 pm
ASE
-
STL
4h 06m
1 stop
United Airlines Logo
5:15 am - 9:11 am
STL
-
ASE
4h 56m
1 stop
$723United Airlines
Wed, Mar 11 - Wed, Mar 18
United Airlines Logo
6:28 pm - 11:34 pm
ASE
-
STL
4h 06m
1 stop
United Airlines Logo
11:25 am - 6:40 pm
STL
-
ASE
8h 15m
2 stops
$800United Airlines
Thu, Mar 12 - Tue, Mar 17
Delta Logo
12:20 pm - 11:58 pm
ASE
-
STL
10h 38m
2 stops
Delta Logo
6:00 am - 11:40 am
STL
-
ASE
6h 40m
1 stop
$1,341Delta
Wed, Mar 11 - Wed, Mar 18

United Airlines flights from Aspen to St. Louis

Our best United Airlines deals on Aspen to St. Louis flight tickets
United Airlines
Mar 6
ASE7:56 amAspen Pitkin County
5h 47m
1 stop
STL2:43 pmLambert-St Louis
Mar 9
STL5:55 pmLambert-St Louis
4h 47m
1 stop
ASE9:42 pmAspen Pitkin County
$269
United Airlines
Mar 6
ASE1:23 pmAspen Pitkin County
7h 53m
1 stop
STL10:16 pmLambert-St Louis
Mar 9
STL10:00 amLambert-St Louis
11h 27m
2 stops
ASE8:27 pmAspen Pitkin County
$344
United Airlines
Mar 6
ASE12:22 pmAspen Pitkin County
7h 45m
2 stops
STL9:07 pmLambert-St Louis
Mar 9
STL10:00 amLambert-St Louis
11h 27m
2 stops
ASE8:27 pmAspen Pitkin County
$349

Delta flights from Aspen to St. Louis

Our best Delta deals on Aspen to St. Louis flight tickets
Delta
Mar 11
ASE12:20 pmAspen Pitkin County
10h 38m
2 stops
STL11:58 pmLambert-St Louis
Mar 18
STL6:00 amLambert-St Louis
6h 40m
1 stop
ASE11:40 amAspen Pitkin County
$1,341
Delta
Mar 11
ASE12:20 pmAspen Pitkin County
10h 38m
2 stops
STL11:58 pmLambert-St Louis
Mar 17
STL7:03 amLambert-St Louis
8h 10m
1 stop
ASE2:13 pmAspen Pitkin County
$1,356

momondo 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, momondo users made 832,500 searches. Data last updated February 20, 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

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Fri 3/6

7:56 am-2:43 pm

1 stop5h 47m

Lambert-St Louis

Mon 3/9

5:55 pm-9:42 pm

1 stop4h 47m

$269

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Fri 3/6

1:23 pm-10:16 pm

1 stop7h 53m

Lambert-St Louis

Mon 3/9

10:00 am-8:27 pm

2 stops11h 27m

$344

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Fri 3/6

12:22 pm-9:07 pm

2 stops7h 45m

Lambert-St Louis

Mon 3/9

10:00 am-8:27 pm

2 stops11h 27m

$349

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 3/19

6:28 pm-11:34 pm

1 stop4h 06m

Lambert-St Louis

Fri 3/20

10:00 am-3:20 pm

1 stop6h 20m

$453

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 3/19

7:56 am-2:42 pm

1 stop5h 46m

Lambert-St Louis

Thu 3/19

6:02 pm-9:42 pm

1 stop4h 40m

$578

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 3/19

5:16 pm-11:34 pm

1 stop5h 18m

Lambert-St Louis

Fri 3/20

7:41 am-5:40 pm

2 stops10h 59m

$581

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Fri 3/20

7:56 am-2:43 pm

1 stop5h 47m

Lambert-St Louis

Fri 3/20

6:05 pm-9:42 pm

1 stop4h 37m

$678

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Wed 3/11

6:28 pm-11:34 pm

1 stop4h 06m

Lambert-St Louis

Wed 3/18

5:15 am-9:11 am

1 stop4h 56m

$723

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Thu 3/12

6:28 pm-11:34 pm

1 stop4h 06m

Lambert-St Louis

Tue 3/17

11:25 am-6:40 pm

2 stops8h 15m

$800

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Wed 3/11

12:20 pm-11:58 pm

2 stops10h 38m

Lambert-St Louis

Wed 3/18

6:00 am-11:40 am

1 stop6h 40m

$1,341

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Aspen to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Aspen Pitkin County to Lambert-St Louis?

American Airlines, United Airlines, and Alaska Airlines are the most popular carriers operating from Aspen Pitkin County to Lambert-St Louis

When to book flights from Aspen to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Aspen to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Aspen to St. Louis (ASE to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Aspen to St. Louis

Fastest flight time

7h 04m

Direct flights

None
The fastest flight from Aspen to St. Louis takes 7h 04m
There are no direct flights from Aspen to St. Louis. There are no popular flight routes from Aspen to St. Louis.
Search flight deals

  • How far is Aspen Pitkin County to Lambert-St Louis by plane?

    Aspen Pitkin County and Lambert-St Louis are 892.5 mi apart from one another. Flights usually cover this in 7h 04m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Aspen Pitkin County Airport to Lambert-St Louis Airport?

    Prices for flights from Aspen Pitkin County Airport to Lambert-St Louis Airport refresh daily.

  • How old do you have to be to fly from Aspen Pitkin County Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Aspen Pitkin County Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Wentzville
Fenton
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Litchfield
Glencoe
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Aspen to St. Louis?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Aspen.

Can I find flights from Aspen to St. Louis with flexible booking policies on momondo?

momondo does allow users to show only those flights to St. Louis from Aspen which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Aspen to St. Louis?

Once you have performed a search for Aspen to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Aspen to St. Louis right now. Can momondo alert me if prices change?

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Aspen and alert you when they change.

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