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 39m. Fly via United Airlines to get the fastest option. The distance from Aspen to St. Louis is about 885 mi.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest time of day to fly from ASE to STL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Aspen to St. Louis as you normally would.

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.

$243+ Cheap Flights from Aspen to St. Louis

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Cheap flight deals from Aspen to St. Louis

Cheapest

Best

Last-minute

One-way

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 September 7, 2026.

Tue 10/201:16 pm -

1 stop8h 14m

Sat 10/249:00 am -

1 stop6h 38m

Deal found 9/2

$518

Thu 11/193:18 pm -

1 stop4h 41m

Mon 11/301:40 pm -

1 stop4h 17m

Deal found 9/4

$638

Thu 11/1912:57 pm -

1 stop8h 02m

Mon 11/305:56 am -

1 stop7h 31m

Deal found 9/3

$716

One-way flights from Aspen to St. Louis
Search for one-way flight options from Aspen to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.

Wed 9/232:15 pm -

1 stop5h 24m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/3

$243

Sun 10/1812:48 pm -

1 stop7h 09m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/6

$262

Thu 9/248:00 am -

2 stops12h 21m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/3

$285

Fri 9/2511:20 am -

2 stops10h 39m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/6

$295

Sat 9/197:15 am -

1 stop6h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/2

$321

Mon 9/286:05 pm -

1 stop4h 39m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/6

$402

Find flight deals from Aspen to St. Louis

Round-trip from	$518 (United Airlines)
One-way from	$243 (United 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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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AspenSt. Louis

ASE Aspen Pitkin County - STL Lambert-St Louis

ASESTL

Aspen Pitkin County

Thu 9/24

9:15 am-4:37 pm

1 stop6h 22m

Lambert-St Louis

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$243

AspenSt. Louis

ASE Aspen Pitkin County - STL Lambert-St Louis

ASESTL

Aspen Pitkin County

Wed 9/23

2:15 pm-8:39 pm

1 stop5h 24m

Lambert-St Louis

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$243

AspenSt. Louis

ASE Aspen Pitkin County - STL Lambert-St Louis

ASESTL

Aspen Pitkin County

Fri 9/25

11:20 am-10:59 pm

2 stops10h 39m

Lambert-St Louis

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$295

AspenSt. Louis

ASE Aspen Pitkin County - STL Lambert-St Louis

ASESTL

Aspen Pitkin County

Sat 9/19

7:15 am-2:15 pm

1 stop6h 00m

Lambert-St Louis

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$321

Quickest round-trip

AspenSt. Louis

ASE Aspen Pitkin County - STL Lambert-St Louis

ASESTL

Aspen Pitkin County

Mon 9/28

6:05 pm-11:44 pm

1 stop4h 39m

Lambert-St Louis

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$402

AspenSt. Louis

ASE Aspen Pitkin County - STL Lambert-St Louis

ASESTL

Aspen Pitkin County

Tue 10/20

6:05 pm-11:44 pm

1 stop4h 39m

Lambert-St Louis

Sat 10/24

10:27 am-7:29 pm

2 stops10h 02m

$523

AspenSt. Louis

ASE Aspen Pitkin County - STL Lambert-St Louis

ASESTL

Aspen Pitkin County

Thu 11/19

3:18 pm-8:59 pm

1 stop4h 41m

Lambert-St Louis

Mon 11/30

1:40 pm-4:57 pm

1 stop4h 17m

$638

AspenSt. Louis

ASE Aspen Pitkin County - STL Lambert-St Louis

ASESTL

Aspen Pitkin County

Thu 11/19

7:25 am-12:01 am

2 stops15h 36m

Lambert-St Louis

Mon 11/30

5:56 am-12:27 pm

1 stop7h 31m

$817

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/3

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.

ASE-STL

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.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown United Airlines from Aspen to St. Louis. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,175 reviews

Reviews

1 / 20

10.0

Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

United Airlines

7.4

Good

10,175 reviews

United Airlines

7.4

Good

10,175 reviews

Reviews

1 / 20

10.0

Excellent

Michelle,Dec 2025

DEN - MKE

Related info for your journey

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 39m. 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.

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Top airline flying from Aspen to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$269	Average$338	FlexibilityNo cancel fee	On-time69%

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$243+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Aspen to St. Louis with Cheapflights

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Cheap flight deals from Aspen to St. Louis

Cheapest flights from Aspen to St. LouisExplore 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 September 7, 2026.

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 September 7, 2026.

Best flights from Aspen to St. LouisDiscover carefully curated flight deals from Aspen to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.

Discover carefully curated flight deals from Aspen to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.

Last-minute flights from Aspen to St. LouisDiscover last-minute flight deals from Aspen to St. Louis. Data last updated September 7, 2026 and is based on user searches.

Discover last-minute flight deals from Aspen to St. Louis. Data last updated September 7, 2026 and is based on user searches.

One-way flights from Aspen to St. LouisSearch for one-way flight options from Aspen to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.

Search for one-way flight options from Aspen to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.

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Best time to book a flight from Aspen to St. Louis

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Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown United Airlines from Aspen to St. Louis. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Aspen to St. Louis?

Can I find deals for flights from Aspen to St. Louis that include hotel bookings?

How can I find direct flights from Aspen to St. Louis?

Can I find deals for business class flights from Aspen to St. Louis?

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Aspen and St. Louis flights

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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 September 7, 2026.

Best flights from Aspen to St. Louis
Discover carefully curated flight deals from Aspen to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.

Last-minute flights from Aspen to St. Louis
Discover last-minute flight deals from Aspen to St. Louis. Data last updated September 7, 2026 and is based on user searches.

One-way flights from Aspen to St. Louis
Search for one-way flight options from Aspen to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.