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Aspen

$354+ Cheap flights from St. Louis to Aspen (STL - ASE)

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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ASE
dic. 6 — dic. 131
sáb. 12/6
sáb. 12/13
1 adult, Economy
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Find flight deals from St. Louis to Aspen

Cheapest flights from St. Louis to Aspen
Explore the most affordable flight options available from St. Louis to Aspen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 6, 2025.

This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/206:00 amSTL - ASE
1 stop6h 21mDelta
lun. 11/241:05 pmASE - STL
1 stop7h 53mDelta
Deal found 11/5$354
This United Airlines deal was found by Cheapflights users on 11/6. 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. 12/1710:00 amSTL - ASE
2 stops7h 31mUnited Airlines
sáb. 12/201:30 pmASE - STL
1 stop7h 25mUnited Airlines
Deal found 11/6$381
This American Airlines deal was found by Cheapflights users on 11/6. 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.
mar. 12/235:54 amSTL - ASE
1 stop7h 31mAmerican Airlines
dom. 12/282:53 pmASE - STL
1 stop7h 51mAmerican Airlines
Deal found 11/6$395
This United Airlines deal was found by Cheapflights users on 11/6. 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. 11/61:35 pmSTL - ASE
1 stop5h 53mUnited Airlines
dom. 11/97:10 amASE - STL
1 stop4h 29mUnited Airlines
Deal found 11/6$489
This United Airlines deal was found by Cheapflights users on 11/5. 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.
mar. 12/239:55 amSTL - ASE
1 stop6h 35mUnited Airlines
dom. 12/2811:10 amASE - STL
2 stops10h 33mUnited Airlines
Deal found 11/5$494
This United Airlines deal was found by Cheapflights users on 11/5. 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.
sáb. 12/202:45 pmSTL - ASE
1 stop7h 50mUnited Airlines
sáb. 12/275:00 pmASE - STL
1 stop4h 22mUnited Airlines
Deal found 11/5$502
This American Airlines deal was found by Cheapflights users on 11/5. 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. 11/205:17 amSTL - ASE
1 stop7h 25mAmerican Airlines
lun. 11/247:34 amASE - STL
2 stops15h 22mAmerican Airlines
Deal found 11/5$558
This United Airlines deal was found by Cheapflights users on 11/5. 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. 11/206:30 amSTL - ASE
2 stops6h 59mUnited Airlines
lun. 11/248:30 amASE - STL
2 stops9h 46mUnited Airlines
Deal found 11/5$615

Cheap flight deals from St. Louis to Aspen

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Aspen (ASE). 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 noviembre 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$354
(Delta)

Popular in

March

Cheapest in

September

Average price

$635
Provider with most accurate pricing for Lambert-St Louis-Aspen Pitkin County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Aspen Pitkin County flights.
Search Deals
From Lambert-St Louis to Aspen Pitkin County
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($109 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Aspen 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 noviembre 6, 2025.
Use the filters below to find and compare flights from St. Louis to Aspen that are best for you.

Fly from

St. Louis

Fly to

Aspen

Route

Depart

Return

Price

St. LouisAspen

STL - ASE

STLASE

Lambert-St Louis

jue. 11/20

6:00 am-11:21 am

1 stop6h 21m

Aspen Pitkin County

lun. 11/24

1:05 pm-9:58 pm

1 stop7h 53m

$354

St. LouisAspen

STL - ASE

STLASE

Lambert-St Louis

mié. 12/17

10:00 am-4:31 pm

2 stops7h 31m

Aspen Pitkin County

sáb. 12/20

1:30 pm-9:55 pm

1 stop7h 25m

$381

St. LouisAspen

STL - ASE

STLASE

Lambert-St Louis

mar. 12/23

7:00 am-2:23 pm

1 stop8h 23m

Aspen Pitkin County

dom. 12/28

2:53 pm-11:44 pm

1 stop7h 51m

$395

St. LouisAspen

STL - ASE

STLASE

Lambert-St Louis

mar. 12/23

9:55 am-3:30 pm

1 stop6h 35m

Aspen Pitkin County

dom. 12/28

11:10 am-10:43 pm

2 stops10h 33m

$494

St. LouisAspen

STL - ASE

STLASE

Lambert-St Louis

sáb. 12/20

2:45 pm-9:35 pm

1 stop7h 50m

Aspen Pitkin County

sáb. 12/27

5:00 pm-10:22 pm

1 stop4h 22m

$502

St. LouisAspen

STL - ASE

STLASE

Lambert-St Louis

jue. 11/20

5:17 am-11:42 am

1 stop7h 25m

Aspen Pitkin County

lun. 11/24

7:34 am-11:56 pm

2 stops15h 22m

$558

St. LouisAspen

STL - ASE

STLASE

Lambert-St Louis

jue. 11/20

6:30 am-12:29 pm

2 stops6h 59m

Aspen Pitkin County

lun. 11/24

8:30 am-7:16 pm

2 stops9h 46m

$615

St. LouisAspen

STL - ASE

STLASE

Lambert-St Louis

lun. 11/10

1:20 pm-7:31 pm

1 stop7h 11m

Aspen Pitkin County

vie. 11/14

12:25 pm-7:30 pm

1 stop6h 05m

$686

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Compare providers for flights from St. Louis to Aspen

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Aspen in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Aspen flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Aspen flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Aspen flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Aspen flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Aspen flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to Aspen from St. Louis 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 St. Louis to Aspen

What is the cheapest month to book a flight from St. Louis to Aspen?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Aspen (average of $228). Flying from St. Louis to Aspen in July is currently the most expensive (average of $347). 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.

Reviews of airlines servicing Aspen

Get insights into the airlines that provide service to Aspen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Aspen. Reviews last updated noviembre 6, 2025.
Read through reviews of airlines operating flights from St. Louis to Aspen, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,007 reviews

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,007 reviews
United Airlines
7.4
Good
9,007 reviews

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,040 reviews
United Airlines
7.4
Good
9,007 reviews

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Aspen. 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 St. Louis to Aspen?

    Departing from St. Louis to Aspen will take you 6h 21m. There are 885 mi between St. Louis and Aspen. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from St. Louis to Aspen round-trip?

    Flying on American Airlines is currently your cheapest option to Aspen, with prices starting at $288. Another option worth looking into is United Airlines, starting at $298 round trip. American Airlines is currently priced 49% below the average price you’ll pay for this route.

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

    Yes. In addition to deals on St. Louis to Aspen flights, Cheapflights offers vacation packages that include both flights and hotel.

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Aspen.

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

    Yes. Cheapflights offers flight deals from St. Louis to Aspen 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 St. Louis to Aspen?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Aspen (average of $228). Flying from St. Louis to Aspen in July is currently the most expensive (average of $347). 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 Aspen?

Book flights to Aspen if you plan to visit one of these locations
Snowmass Village
Buena Vista
Snowmass

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Top 2 airlines flying from St. Louis to Aspen

Discover the top 2 airlines that operate flights from St. Louis to Aspen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated noviembre 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$508FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$298Average$540FlexibilityNo cancel feeOn-time69%

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