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Aspen

$110+ Cheap flights from Illinois to Aspen (ASE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ASE
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheap flight deals from Illinois to Aspen

Keep the following information in mind while searching for Illinois to Aspen flight deals. Data was last updated julio 30, 2025.

Round-trip from

$210
(American Airlines)

One-way from

$110
(American Airlines)

Popular in

November

Cheapest in

August

Average price

$521

Good round-trip deal

$325 or less

Good one-way deal

$273 or less
From Illinois to Aspen Pitkin County
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One-way flight from Illinois to Aspen Pitkin County
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Highest demand for flights based on searches. 14% potential increase in price ($94 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Illinois to Aspen Pitkin County.
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Price to beat on a one-way flight from Illinois to Aspen Pitkin County.
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Find flight deals from Illinois to Aspen

Cheapest flights from Illinois to Aspen
Explore the most affordable flight options available from Illinois to Aspen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

This American Airlines deal was found by Cheapflights users on 7/28. 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.
dom. 9/289:31 amORD - ASE
Nonstop3h 10mAmerican Airlines
sáb. 10/412:14 pmASE - ORD
Nonstop2h 58mAmerican Airlines
Deal found 7/28$210
This American Airlines deal was found by Cheapflights users on 7/29. 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.
vie. 8/2210:08 amSTL - ASE
1 stop6h 56mAmerican Airlines
vie. 8/294:37 pmASE - STL
1 stop5h 22mAmerican Airlines
Deal found 7/29$229
This United Airlines deal was found by Cheapflights users on 7/29. 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. 9/45:00 amORD - ASE
1 stop5h 27mUnited Airlines
mar. 9/96:15 pmASE - ORD
1 stop4h 44mUnited Airlines
Deal found 7/29$230
This Delta deal was found by Cheapflights users on 7/27. 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.
mar. 10/215:20 amORD - ASE
1 stop7h 09mDelta
sáb. 10/257:45 amASE - ORD
1 stop8h 15mDelta
Deal found 7/27$233
This Delta deal was found by Cheapflights users on 7/28. 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.
sáb. 9/276:00 amMDW - ASE
1 stop6h 13mDelta
sáb. 10/47:16 amASE - MDW
2 stops10h 19mDelta
Deal found 7/28$349
This United Airlines deal was found by Cheapflights users on 7/28. 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.
dom. 10/269:00 amSTL - ASE
1 stop26h 36mUnited Airlines
vie. 10/313:34 pmASE - STL
2 stops18h 17mUnited Airlines
Deal found 7/28$513

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 julio 30, 2025.
Use the filters below to find and compare flights from Illinois to Aspen that are best for you.

Fly from

Illinois

Fly to

Aspen

Route

Depart

Return

Price

ChicagoAspen

ORD - ASE

ORDASE

Chicago O'Hare Intl

dom. 9/28

9:31 am-11:41 am

Nonstop3h 10m

Aspen Pitkin County

sáb. 10/4

12:14 pm-4:12 pm

Nonstop2h 58m

$210

St. LouisAspen

STL - ASE

STLASE

Lambert-St Louis

vie. 8/22

10:08 am-4:04 pm

1 stop6h 56m

Aspen Pitkin County

vie. 8/29

4:37 pm-10:59 pm

1 stop5h 22m

$229

ChicagoAspen

ORD - ASE

ORDASE

Chicago O'Hare Intl

jue. 9/4

5:00 am-9:27 am

1 stop5h 27m

Aspen Pitkin County

mar. 9/9

6:15 pm-11:59 pm

1 stop4h 44m

$230

ChicagoAspen

ORD - ASE

ORDASE

Chicago O'Hare Intl

mar. 10/21

5:20 am-11:29 am

1 stop7h 09m

Aspen Pitkin County

sáb. 10/25

7:45 am-5:00 pm

1 stop8h 15m

$233

ChicagoAspen

MDW - ASE

MDWASE

Chicago Midway

sáb. 9/27

6:00 am-11:13 am

1 stop6h 13m

Aspen Pitkin County

sáb. 10/4

7:16 am-6:35 pm

2 stops10h 19m

$349

St. LouisAspen

STL - ASE

STLASE

Lambert-St Louis

dom. 10/26

9:00 am-10:36 am

1 stop26h 36m

Aspen Pitkin County

vie. 10/31

3:34 pm-10:51 am

2 stops18h 17m

$513

ChicagoAspen

ORD - ASE

ORDASE

Chicago O'Hare Intl

dom. 9/28

9:31 am-11:41 am

Nonstop3h 10m

$110

ChicagoAspen

ORD - ASE

ORDASE

Chicago O'Hare Intl

lun. 9/29

5:30 am-11:13 am

1 stop6h 43m

$120

St. LouisAspen

STL - ASE

STLASE

Lambert-St Louis

lun. 10/20

6:00 am-11:29 am

1 stop6h 29m

$189

ChicagoAspen

ORD - ASE

ORDASE

Chicago O'Hare Intl

vie. 8/22

7:35 pm-9:45 pm

Nonstop3h 10m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 12 results
1
2

Best time to book a flight from Illinois to Aspen

Have a flexible travel schedule? Discover the best time to fly to Aspen from Illinois 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 Illinois to Aspen

What is the cheapest month to book a flight from Illinois to Aspen?

Currently, November is the cheapest month in which you can book a flight from Illinois to Aspen (average of $448). Flying from Illinois to Aspen in December is currently the most expensive (average of $665). 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.

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

Find hourly flight availability from Illinois to Aspen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 30, 2025.

When flying from Illinois to Aspen, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Illinois to Aspen?

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 julio 30, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Illinois to Aspen by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Illinois to Aspen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Aspen from Illinois?

    Most people fly into Aspen Pitkin County (ASE) if they book a flight to Aspen from Illinois. Pitkin County is conveniently located just 3.5 mi from Aspen’s city center.

  • What are the cheapest airlines to fly from Illinois to Aspen one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $110. Delta flights start at $120 while deals on United Airlines start at $150 one-way.

  • What are the most popular routes from Illinois to Aspen?

    Most travelers choose Chicago O'Hare Intl - Aspen Pitkin County, Chicago Midway - Aspen Pitkin County or Lambert-St Louis - Aspen Pitkin County when deciding on the best route from Illinois to Aspen.

  • What are the most reliable airlines from Illinois to Aspen?

    The top 3 most reliable airlines when flying from Illinois to Aspen are Lufthansa (76%), United Airlines (67%) and SkyWest Airlines (62%).

  • What are the cheapest flights from Illinois to Aspen?

    Looking at all options, your cheapest flight can be booked for $109. While the most popular route (Chicago O'Hare Intl - Aspen Pitkin County) can be booked for $230 on average our data indicates $389 when flying from Illinois to Aspen.

  • Can I find deals for flights from Illinois to Aspen that include hotel bookings?

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

  • How can I find direct flights from Illinois to Aspen?

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

  • Can I find deals for business class flights from Illinois to Aspen?

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to Aspen?

    Currently, November is the cheapest month in which you can book a flight from Illinois to Aspen (average of $448). Flying from Illinois to Aspen in December is currently the most expensive (average of $665). 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
Carbondale
Buena Vista
Snowmass

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Top 2 airlines flying from Illinois to Aspen

Discover the top 2 airlines that operate flights from Illinois 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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$239Average$480FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$315Average$554FlexibilityNo cancel feeOn-time69%

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