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

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

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

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

How many operators does momondo search for flights from Lambert-St Louis Airport to Aspen Pitkin County Airport?

There is 1 operator available for flights from Lambert-St Louis Airport to Aspen Pitkin County Airport as of August 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Aspen Pitkin County Airport.

What documentation or ID do you need to fly to Aspen Pitkin County Airport?

The required travel and health documents for your Aspen Pitkin County Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Aspen Pitkin County Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$262 Cheap Flights from St. Louis to Aspen in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Aspen

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:20 am - 2:00 pmSTL Lambert-St Louis-ASE Aspen Pitkin County

7h 40m1 stop Atlanta Hartsfield-Jackson

2:55 pm - 11:39 pmASE Aspen Pitkin County-STL Lambert-St Louis

7h 44m1 stop Atlanta Hartsfield-Jackson

$377Delta

Mon, Jan 4 - Fri, Jan 8

6:00 am - 11:35 amSTL Lambert-St Louis-ASE Aspen Pitkin County

6h 35m1 stop Atlanta Hartsfield-Jackson

2:55 pm - 11:39 pmASE Aspen Pitkin County-STL Lambert-St Louis

7h 44m1 stop Atlanta Hartsfield-Jackson

$377Delta

Tue, Jan 5 - Fri, Jan 8

7:20 am - 2:00 pmSTL Lambert-St Louis-ASE Aspen Pitkin County

7h 40m1 stop Atlanta Hartsfield-Jackson

2:55 pm - 11:39 pmASE Aspen Pitkin County-STL Lambert-St Louis

7h 44m1 stop Atlanta Hartsfield-Jackson

$377Delta

Mon, Jan 4 - Thu, Jan 7

6:00 am - 11:35 amSTL Lambert-St Louis-ASE Aspen Pitkin County

6h 35m1 stop Atlanta Hartsfield-Jackson

2:55 pm - 11:39 pmASE Aspen Pitkin County-STL Lambert-St Louis

7h 44m1 stop Atlanta Hartsfield-Jackson

$377Delta

Tue, Jan 5 - Thu, Jan 7

6:00 am - 11:42 amSTL Lambert-St Louis-ASE Aspen Pitkin County

6h 42m1 stop Atlanta Hartsfield-Jackson

1:52 pm - 9:33 pmASE Aspen Pitkin County-STL Lambert-St Louis

6h 41m1 stop Atlanta Hartsfield-Jackson

$438Delta

Thu, Nov 26 - Fri, Dec 4

6:00 am - 11:35 amSTL Lambert-St Louis-ASE Aspen Pitkin County

6h 35m1 stop Atlanta Hartsfield-Jackson

2:55 pm - 11:39 pmASE Aspen Pitkin County-STL Lambert-St Louis

7h 44m1 stop Atlanta Hartsfield-Jackson

$438Delta

Thu, Dec 31 - Thu, Jan 7

6:00 am - 11:42 amSTL Lambert-St Louis-ASE Aspen Pitkin County

6h 42m1 stop Atlanta Hartsfield-Jackson

1:52 pm - 9:33 pmASE Aspen Pitkin County-STL Lambert-St Louis

6h 41m1 stop Atlanta Hartsfield-Jackson

$438Delta

Thu, Nov 26 - Wed, Dec 2

6:00 am - 11:35 amSTL Lambert-St Louis-ASE Aspen Pitkin County

6h 35m1 stop Atlanta Hartsfield-Jackson

2:55 pm - 11:39 pmASE Aspen Pitkin County-STL Lambert-St Louis

7h 44m1 stop Atlanta Hartsfield-Jackson

$438Delta

Thu, Dec 31 - Fri, Jan 8

6:09 pm - 9:31 pmSTL Lambert-St Louis-ASE Aspen Pitkin County

4h 22m1 stop Denver Intl

10:00 am - 4:26 pmASE Aspen Pitkin County-STL Lambert-St Louis

5h 26m1 stop Denver Intl

$457United Airlines

Sun, Jan 3 - Fri, Jan 8

6:09 pm - 9:31 pmSTL Lambert-St Louis-ASE Aspen Pitkin County

4h 22m1 stop Denver Intl

10:00 am - 4:26 pmASE Aspen Pitkin County-STL Lambert-St Louis

5h 26m1 stop Denver Intl

$457United Airlines

Sun, Jan 3 - Thu, Jan 7

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Delta flights from St. Louis to Aspen

Our best Delta deals on St. Louis to Aspen flight tickets

Delta

Jan 4

STL7:20 amLambert-St Louis

7h 40m

1 stop

ASE2:00 pmAspen Pitkin County

Jan 7

ASE2:55 pmAspen Pitkin County

7h 44m

1 stop

STL11:39 pmLambert-St Louis

$377

Delta

Nov 26

STL6:00 amLambert-St Louis

6h 42m

1 stop

ASE11:42 amAspen Pitkin County

Dec 3

ASE1:52 pmAspen Pitkin County

6h 41m

1 stop

STL9:33 pmLambert-St Louis

$438

Delta

Nov 26

STL6:00 amLambert-St Louis

6h 42m

1 stop

ASE11:42 amAspen Pitkin County

Dec 5

ASE1:52 pmAspen Pitkin County

9h 04m

1 stop

STL11:56 pmLambert-St Louis

$499

American Airlines flights from St. Louis to Aspen

Our best American Airlines deals on St. Louis to Aspen flight tickets

American Airlines

Jan 5

STL5:00 amLambert-St Louis

6h 20m

1 stop

ASE10:20 amAspen Pitkin County

Jan 5

ASE3:44 pmAspen Pitkin County

5h 38m

1 stop

STL10:22 pmLambert-St Louis

$467

American Airlines

Jan 2

STL5:00 amLambert-St Louis

7h 14m

1 stop

ASE11:14 amAspen Pitkin County

Jan 6

ASE12:53 pmAspen Pitkin County

5h 48m

1 stop

STL7:41 pmLambert-St Louis

$478

American Airlines

Aug 31

STL8:36 amLambert-St Louis

6h 14m

1 stop

ASE1:50 pmAspen Pitkin County

Sep 4

ASE12:50 pmAspen Pitkin County

5h 53m

1 stop

STL7:43 pmLambert-St Louis

$485

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisAspen

STL Lambert-St Louis - ASE Aspen Pitkin County

STLASE

Lambert-St Louis

Mon 1/4

7:20 am-2:00 pm

1 stop7h 40m

Aspen Pitkin County

Fri 1/8

2:55 pm-11:39 pm

1 stop7h 44m

$377

St. LouisAspen

STL Lambert-St Louis - ASE Aspen Pitkin County

STLASE

Lambert-St Louis

Tue 1/5

6:00 am-11:35 am

1 stop6h 35m

Aspen Pitkin County

Fri 1/8

2:55 pm-11:39 pm

1 stop7h 44m

$377

St. LouisAspen

STL Lambert-St Louis - ASE Aspen Pitkin County

STLASE

Lambert-St Louis

Mon 1/4

7:20 am-2:00 pm

1 stop7h 40m

Aspen Pitkin County

Thu 1/7

2:55 pm-11:39 pm

1 stop7h 44m

$377

St. LouisAspen

STL Lambert-St Louis - ASE Aspen Pitkin County

STLASE

Lambert-St Louis

Tue 1/5

6:00 am-11:35 am

1 stop6h 35m

Aspen Pitkin County

Thu 1/7

2:55 pm-11:39 pm

1 stop7h 44m

$377

St. LouisAspen

STL Lambert-St Louis - ASE Aspen Pitkin County

STLASE

Lambert-St Louis

Thu 11/26

6:00 am-11:42 am

1 stop6h 42m

Aspen Pitkin County

Fri 12/4

1:52 pm-9:33 pm

1 stop6h 41m

$438

St. LouisAspen

STL Lambert-St Louis - ASE Aspen Pitkin County

STLASE

Lambert-St Louis

Thu 12/31

6:00 am-11:35 am

1 stop6h 35m

Aspen Pitkin County

Thu 1/7

2:55 pm-11:39 pm

1 stop7h 44m

$438

St. LouisAspen

STL Lambert-St Louis - ASE Aspen Pitkin County

STLASE

Lambert-St Louis

Thu 11/26

6:00 am-11:42 am

1 stop6h 42m

Aspen Pitkin County

Wed 12/2

1:52 pm-9:33 pm

1 stop6h 41m

$438

St. LouisAspen

STL Lambert-St Louis - ASE Aspen Pitkin County

STLASE

Lambert-St Louis

Thu 12/31

6:00 am-11:35 am

1 stop6h 35m

Aspen Pitkin County

Fri 1/8

2:55 pm-11:39 pm

1 stop7h 44m

$438

Quickest round-trip

St. LouisAspen

STL Lambert-St Louis - ASE Aspen Pitkin County

STLASE

Lambert-St Louis

Sun 1/3

6:09 pm-9:31 pm

1 stop4h 22m

Aspen Pitkin County

Fri 1/8

10:00 am-4:26 pm

1 stop5h 26m

$457

St. LouisAspen

STL Lambert-St Louis - ASE Aspen Pitkin County

STLASE

Lambert-St Louis

Sun 1/3

6:09 pm-9:31 pm

1 stop4h 22m

Aspen Pitkin County

Thu 1/7

10:00 am-4:26 pm

1 stop5h 26m

$457

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

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

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

Prices

Airlines

What is the cheapest month to fly to Aspen?

The month of April is, on average, the cheapest month to fly to Aspen from St. Louis, with most prices found around $0. If you aren’t able to travel to Aspen during the month of April, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $328.

When to book flights from St. Louis to Aspen

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

Estimated round-trip price

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

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

Fastest flight time	4h 22m
Direct flights	None

The fastest flight from St. Louis to Aspen takes 4h 22m

There are no direct flights from St. Louis to Aspen. There are no popular flight routes from St. Louis to Aspen.

Search flight deals

Frequently asked questions about flying from St. Louis to Aspen

How far is Lambert-St Louis to Aspen Pitkin County by plane?
A flight from Lambert-St Louis to Aspen Pitkin County will travel around 892.5 mi. Flights usually cover this in 4h 22m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Lambert-St Louis Airport to Aspen Pitkin County Airport?
Prices for flights from Lambert-St Louis Airport to Aspen Pitkin County Airport refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Aspen Pitkin County Airport?
There is 1 operator available for flights from Lambert-St Louis Airport to Aspen Pitkin County Airport as of August 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Aspen Pitkin County Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Aspen Pitkin County Airport.
What documentation or ID do you need to fly to Aspen Pitkin County Airport?
The required travel and health documents for your Aspen Pitkin County Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Aspen Pitkin County Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from St. Louis to Aspen?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Aspen is United Airlines (100% of total bookings).

Best airlines flying from St. Louis to Aspen

Compare and see reviews for airlines that fly from St. Louis to Aspen with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $269	Free Cancellation	Rating 7.4 10,105 reviews		Search United Airlines flights

Leadville

Snowmass Village

Carbondale

Buena Vista

Snowmass

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

Flights from St. Louis to Aspen with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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