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$151+ Cheap flights from Aspen (ASE) to Illinois

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 6/26. Fares are subject to change and may not be available on all flights or dates of travel.
ASE — ORD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Aspen to Illinois

Keep the following information in mind while searching for Aspen to Illinois flight deals. Data was last updated June 12, 2025.

Round-trip from

$239
(United Airlines)

One-way from

$151
(American Airlines)

Popular in

March

Cheapest in

April

Average price

$404

Good round-trip deal

$365 or less

Good one-way deal

$180 or less
From Aspen Pitkin County to Illinois
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One-way flight from Aspen Pitkin County to Illinois
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Highest demand for flights based on searches. 6% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Aspen Pitkin County to Illinois.
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Price to beat on a one-way flight from Aspen Pitkin County to Illinois.
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Find flight deals from Aspen to Illinois

Cheapest flights from Aspen to Illinois
Explore the most affordable flight options available from Aspen to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 8/212:40 pmASE - ORD
1 stop7h 02mUnited Airlines
Mon 8/257:35 pmORD - ASE
Nonstop3h 10mUnited Airlines
Deal found 6/10$239
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 7/26:15 pmASE - STL
1 stop4h 44mUnited Airlines
Mon 7/75:15 amSTL - ASE
1 stop4h 27mUnited Airlines
Deal found 6/10$351
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 7/91:35 pmASE - ORD
1 stop6h 49mAmerican Airlines
Thu 7/1010:54 amORD - ASE
Nonstop3h 11mAmerican Airlines
Deal found 6/10$360
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 8/217:16 amASE - MDW
2 stops10h 21mDelta
Mon 8/256:00 amMDW - ASE
1 stop6h 21mDelta
Deal found 6/10$761
This Delta deal was found by Cheapflights users on 6/10. 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.
Sat 6/148:05 amASE - ORD
2 stops11h 06mDelta
Sat 6/215:35 amORD - ASE
1 stop6h 47mDelta
Deal found 6/10$894

Cheapflights Fare Finder

Customize your flight search to find flights from Aspen to Illinois 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 June 12, 2025.
Use the filters below to find and compare flights from Aspen to Illinois that are best for you.

Fly from

Aspen

Fly to

Illinois

Route

Depart

Return

Price

AspenChicago

ASE - ORD

ASEORD

Aspen Pitkin County

Thu 8/21

2:40 pm-10:42 pm

1 stop7h 02m

Chicago O'Hare Intl

Mon 8/25

7:35 pm-9:45 pm

Nonstop3h 10m

$239

AspenSt. Louis

ASE - STL

ASESTL

Aspen Pitkin County

Wed 7/2

6:15 pm-11:59 pm

1 stop4h 44m

Lambert-St Louis

Mon 7/7

5:15 am-8:42 am

1 stop4h 27m

$351

AspenChicago

ASE - ORD

ASEORD

Aspen Pitkin County

Wed 7/9

1:35 pm-9:24 pm

1 stop6h 49m

Chicago O'Hare Intl

Thu 7/10

10:54 am-1:05 pm

Nonstop3h 11m

$360

AspenChicago

ASE - MDW

ASEMDW

Aspen Pitkin County

Thu 8/21

7:16 am-6:37 pm

2 stops10h 21m

Chicago Midway

Mon 8/25

6:00 am-11:21 am

1 stop6h 21m

$761

AspenChicago

ASE - ORD

ASEORD

Aspen Pitkin County

Thu 8/21

7:16 am-7:28 pm

2 stops11h 12m

Chicago O'Hare Intl

Mon 8/25

5:45 am-11:21 am

1 stop6h 36m

$951

AspenChicago

ASE - ORD

ASEORD

Aspen Pitkin County

Thu 6/26

1:34 pm-9:24 pm

1 stop6h 50m

$151

AspenChicago

ASE - ORD

ASEORD

Aspen Pitkin County

Thu 6/26

6:15 pm-12:30 am

1 stop5h 15m

$191

AspenChicago

ASE - MDW

ASEMDW

Aspen Pitkin County

Thu 6/26

8:05 am-6:41 pm

2 stops9h 36m

$385

AspenChicago

ASE - ORD

ASEORD

Aspen Pitkin County

Wed 7/9

8:05 am-8:15 pm

2 stops11h 10m

$605

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Aspen to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Aspen to Illinois (average of $245). Flying from Aspen to Illinois in March is currently the most expensive (average of $321). 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 ASE to IL?

Find hourly flight availability from Aspen to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

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

Weekly flight availability from Aspen to Illinois

Explore weekly flight availability from Aspen to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from ASE to USIL are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Aspen to Illinois, such as Delta, United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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 Aspen to Illinois. 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 from for flights from Aspen to Illinois?

    Aspen Pitkin County (ASE), located 3.5 mi from the city center, is the airport you fly out of when you book flights from Aspen to Illinois.

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

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $151. However, be on the lookout for offers from United Airlines and Delta, as they are both options that can get you from Aspen to Illinois for a low price.

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

    While some choose either Aspen Pitkin County - Chicago Midway or Aspen Pitkin County - Lambert-St Louis, Aspen Pitkin County - Chicago O'Hare Intl is the most popular route from Aspen to Illinois.

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

    No one likes to see their flight delayed. When booking a flight from Aspen to Illinois consider choosing United Airlines (58%), SkyWest Airlines (56%) or Lufthansa (52%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Aspen to Illinois?

    While on average a flight from Aspen to Illinois is generally $520, our data shows the cheapest flight currently is $140. When looking at the most popular route, (Aspen Pitkin County - Chicago O'Hare Intl), you can expect to pay $239 for that flight.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Aspen to Illinois (average of $245). Flying from Aspen to Illinois in March is currently the most expensive (average of $321). 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.

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Top 2 airlines flying from Aspen to Illinois

Discover the top 2 airlines that operate flights from Aspen to Illinois. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$235Average$361FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$315Average$463FlexibilityNo cancel feeOn-time69%

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