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$82+ Cheap flights from Kalispell (FCA) 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — ORD
Jan 28 — Feb 41
Wed 1/28
Wed 2/4
1 adult, Economy
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Cheap flight deals from Kalispell to Illinois

Best flights from Kalispell to Illinois
Discover carefully curated flight deals from Kalispell to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 29, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/127:53 pmFCA - ORD
1 stop19h 40mAlaska Airlines
Sun 3/157:00 amORD - FCA
1 stop13h 13mAlaska Airlines
Deal found 12/27$335
This Delta deal was found by Cheapflights users on 12/26. 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 1/105:05 amFCA - MDW
2 stops10h 11mDelta
Wed 1/1411:21 amMDW - FCA
2 stops12h 31mDelta
Deal found 12/26$339
This United Airlines deal was found by Cheapflights users on 12/26. 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 4/292:33 pmFCA - ORD
1 stop5h 44mUnited Airlines
Sat 5/22:18 pmORD - FCA
1 stop8h 12mUnited Airlines
Deal found 12/26$349
This United Airlines deal was found by Cheapflights users on 12/28. 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.
Fri 5/12:29 pmFCA - ORD
1 stop8h 28mUnited Airlines
Sun 5/33:00 pmORD - FCA
1 stop7h 30mUnited Airlines
Deal found 12/28$375
This Alaska Airlines deal was found by Cheapflights users on 12/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/296:25 amFCA - STL
1 stop6h 29mAlaska Airlines
Sun 2/12:50 pmSTL - FCA
2 stops23h 24mAlaska Airlines
Deal found 12/26$392
This United Airlines deal was found by Cheapflights users on 12/26. 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 1/292:42 pmFCA - STL
1 stop5h 16mUnited Airlines
Sun 2/12:45 pmSTL - FCA
1 stop8h 14mUnited Airlines
Deal found 12/26$383
This Alaska Airlines deal was found by Cheapflights users on 12/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/11:43 pmFCA - ORD
1 stop29h 09mAlaska Airlines
Sun 5/36:00 amORD - FCA
1 stop7h 03mAlaska Airlines
Deal found 12/28$415
This Delta deal was found by Cheapflights users on 12/26. 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.
Fri 1/95:05 amFCA - MDW
2 stops11h 32mDelta
Mon 1/129:50 amMDW - FCA
1 stop5h 32mDelta
Deal found 12/26$469
This Alaska Airlines deal was found by Cheapflights users on 12/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:35 amFCA - ORD
1 stop7h 21mAlaska Airlines
Sat 5/28:50 amORD - FCA
2 stops28h 13mAlaska Airlines
Deal found 12/27$421
This Delta deal was found by Cheapflights users on 12/27. 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.
Thu 1/83:23 pmFCA - STL
1 stop7h 02mDelta
Sun 1/116:35 amSTL - FCA
2 stops8h 47mDelta
Deal found 12/27$470
This United Airlines deal was found by Cheapflights users on 12/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/142:42 pmFCA - MLI
2 stops18h 30mUnited Airlines
Sat 1/1710:47 amMLI - FCA
2 stops13h 33mUnited Airlines
Deal found 12/27$538
This United Airlines deal was found by Cheapflights users on 12/26. 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 2/196:00 amFCA - PIA
2 stops29h 43mUnited Airlines
Mon 2/231:25 pmPIA - FCA
2 stops9h 47mUnited Airlines
Deal found 12/26$569
This Delta deal was found by Cheapflights users on 12/28. 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.
Mon 1/125:05 amFCA - MDW
2 stops10h 24mDelta
Fri 1/161:28 pmMDW - FCA
2 stops10h 24mDelta
Deal found 12/28$737
This Delta deal was found by Cheapflights users on 12/27. 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.
Sun 1/115:05 amFCA - MDW
2 stops11h 32mDelta
Thu 1/151:28 pmMDW - FCA
2 stops10h 24mDelta
Deal found 12/27$758
This Delta deal was found by Cheapflights users on 12/27. 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.
Tue 3/175:09 amFCA - MDW
2 stops11h 45mDelta
Sat 3/282:05 pmMDW - FCA
2 stops10h 36mDelta
Deal found 12/27$3,740

Find flight deals from Kalispell to Illinois

Keep the following information in mind while searching for Kalispell to Illinois flight deals. Data was last updated December 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$296
(United Airlines)

One-way from

$82
(Kiwi.com)

Popular in

February

Cheapest in

October

Average price

$509

Good round-trip deal

$529 or less

Good one-way deal

$204 or less
Provider with most accurate pricing for Kalispell Glacier Park-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kalispell Glacier Park-Chicago (CHI) flights.
Search Deals
From Kalispell Glacier Park to Illinois
Search Deals
One-way flight from Kalispell Glacier Park to Illinois
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($158 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 December 2025
Search Deals
Price to beat on a round-trip flight from Kalispell Glacier Park to Illinois.
Search Deals
Price to beat on a one-way flight from Kalispell Glacier Park to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kalispell 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 December 29, 2025.
Use the filters below to find and compare flights from Kalispell to Illinois that are best for you.

Fly from

Kalispell

Fly to

Illinois

Route

Depart

Return

Price

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Thu 3/12

7:53 pm-4:33 pm

1 stop19h 40m

Chicago O'Hare Intl

Sun 3/15

7:00 am-7:13 pm

1 stop13h 13m

$335

KalispellChicago

FCA - MDW

FCAMDW

Kalispell Glacier Park

Sat 1/10

5:05 am-4:16 pm

2 stops10h 11m

Chicago Midway

Wed 1/14

11:21 am-10:52 pm

2 stops12h 31m

$339

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Wed 4/29

2:33 pm-9:17 pm

1 stop5h 44m

Chicago O'Hare Intl

Sat 5/2

2:18 pm-9:30 pm

1 stop8h 12m

$349

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Fri 5/1

2:29 pm-11:57 pm

1 stop8h 28m

Chicago O'Hare Intl

Sun 5/3

3:00 pm-9:30 pm

1 stop7h 30m

$375

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Thu 1/29

2:42 pm-8:58 pm

1 stop5h 16m

Lambert-St Louis

Sun 2/1

2:45 pm-9:59 pm

1 stop8h 14m

$383

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Thu 1/29

6:25 am-1:54 pm

1 stop6h 29m

Lambert-St Louis

Sun 2/1

2:50 pm-1:14 pm

2 stops23h 24m

$392

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Fri 5/1

1:43 pm-7:52 pm

1 stop29h 09m

Chicago O'Hare Intl

Sun 5/3

6:00 am-12:03 pm

1 stop7h 03m

$415

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Wed 4/29

6:35 am-2:56 pm

1 stop7h 21m

Chicago O'Hare Intl

Sat 5/2

8:50 am-12:03 pm

2 stops28h 13m

$421

KalispellChicago

FCA - MDW

FCAMDW

Kalispell Glacier Park

Fri 1/9

5:05 am-5:37 pm

2 stops11h 32m

Chicago Midway

Mon 1/12

9:50 am-2:22 pm

1 stop5h 32m

$469

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Thu 1/8

3:23 pm-11:25 pm

1 stop7h 02m

Lambert-St Louis

Sun 1/11

6:35 am-2:22 pm

2 stops8h 47m

$470

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Showing 1-10 of 28 results
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Best time to book a flight from Kalispell to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Kalispell to Illinois (average of $191). Flying from Kalispell to Illinois in February is currently the most expensive (average of $328). 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 FCA to IL?

Find hourly flight availability from Kalispell 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 December 29, 2025.

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

Weekly flight availability from Kalispell to Illinois

Explore weekly flight availability from Kalispell 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 December 29, 2025.

The most flights from FCA to USIL are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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 December 29, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Kalispell to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,014 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,014 reviews
Delta
7.9
Good
8,014 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,120 reviews
Delta
7.9
Good
8,014 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,072 reviews
Delta
7.9
Good
8,014 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Kalispell 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 Kalispell to Illinois?

    Kalispell Glacier Park (FCA), located 8.4 mi from the city center, is the airport you fly out of when you book flights from Kalispell to Illinois.

  • How long is the flight from Kalispell to Illinois?

    Airlines like United Airlines, Alaska Airlines, and Delta fly from Kalispell to Illinois in about 3h 28m. The time it takes to get you to your destination can typically vary by up to 12h 57m. The distance between Kalispell and Illinois is about 1348 mi. This flight may include one or multiple stops.

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

    $108 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $151 and $175, respectively.

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

    The most popular flight routes from Kalispell to Illinois are Kalispell Glacier Park - Chicago O'Hare Intl, Kalispell Glacier Park - Lambert-St Louis and Kalispell Glacier Park - Chicago Midway.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Kalispell to Illinois on time: SkyWest Airlines (100%), United Airlines (100%), American Airlines (77%).

  • What are the cheapest flights from Kalispell to Illinois?

    Looking at all options, your cheapest flight can be booked for $149. While the most popular route (Kalispell Glacier Park - Chicago O'Hare Intl) can be booked for $276 on average, our data indicates $509 when flying from Kalispell to Illinois.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Kalispell to Illinois (average of $191). Flying from Kalispell to Illinois in February is currently the most expensive (average of $328). 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 3 airlines flying from Kalispell to Illinois

Discover the top 3 airlines that operate flights from Kalispell 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 December 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$191Average$346FlexibilityNo cancel feeOn-time71%
DeltaCheapest$308Average$389FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$309Average$494FlexibilityNo cancel feeOn-time69%

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