HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$126+ 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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — ORD
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kalispell to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Kalispell to Illinois

Keep the following information in mind while searching for Kalispell to Illinois flight deals. Data was last updated septiembre 17, 2025.

Round-trip from

$269
(American Airlines)

One-way from

$126
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$347

Good round-trip deal

$399 or less

Good one-way deal

$270 or less
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. 16% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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

Find flight deals from Kalispell to Illinois

Cheapest flights from Kalispell to Illinois
Explore the most affordable flight options available from Kalispell to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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. 10/171:14 pmFCA - ORD
Nonstop3h 36mAmerican Airlines
mar. 10/219:55 amORD - FCA
Nonstop3h 48mAmerican Airlines
Deal found 9/15$269
This United Airlines deal was found by Cheapflights users on 9/16. 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. 12/42:37 pmFCA - STL
1 stop5h 20mUnited Airlines
sáb. 12/69:00 amSTL - FCA
1 stop5h 35mUnited Airlines
Deal found 9/16$286
This Hawaiian Airlines deal was found by Cheapflights users on 9/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/252:32 pmFCA - ORD
1 stop8h 34mHawaiian Airlines
vie. 10/313:25 pmORD - FCA
1 stop9h 32mHawaiian Airlines
Deal found 9/15$288
This American Airlines deal was found by Cheapflights users on 9/16. 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.
sáb. 10/251:08 pmFCA - ORD
Nonstop3h 36mAmerican Airlines
vie. 10/319:55 amORD - FCA
Nonstop3h 48mAmerican Airlines
Deal found 9/16$289
This Delta deal was found by Cheapflights users on 9/16. 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. 12/26:06 pmFCA - STL
1 stop5h 43mDelta
sáb. 12/66:30 amSTL - FCA
1 stop6h 01mDelta
Deal found 9/16$291
This Delta deal was found by Cheapflights users on 9/15. 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. 10/255:20 amFCA - ORD
2 stops8h 40mDelta
vie. 10/315:15 pmORD - FCA
1 stop6h 54mDelta
Deal found 9/15$294
This Delta deal was found by Cheapflights users on 9/15. 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. 10/255:20 amFCA - MDW
2 stops11h 23mDelta
vie. 10/319:20 amMDW - FCA
1 stop6h 09mDelta
Deal found 9/15$294
This Delta deal was found by Cheapflights users on 9/16. 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. 12/26:06 pmFCA - STL
1 stop5h 43mDelta
dom. 12/76:30 amSTL - FCA
1 stop6h 01mDelta
Deal found 9/16$298
This Delta deal was found by Cheapflights users on 9/16. 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. 12/45:00 amFCA - STL
2 stops11h 09mDelta
sáb. 12/611:19 amSTL - FCA
2 stops13h 01mDelta
Deal found 9/16$301
This United Airlines deal was found by Cheapflights users on 9/17. 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. 10/212:41 pmFCA - ORD
Nonstop3h 29mUnited Airlines
lun. 10/68:45 amORD - FCA
Nonstop3h 50mUnited Airlines
Deal found 9/17$309
This Delta deal was found by Cheapflights users on 9/15. 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.
vie. 10/1712:00 pmFCA - ORD
1 stop5h 41mDelta
mar. 10/218:57 amORD - FCA
2 stops9h 31mDelta
Deal found 9/15$314
This United Airlines deal was found by Cheapflights users on 9/16. 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. 10/145:06 pmFCA - STL
1 stop5h 52mUnited Airlines
sáb. 10/185:15 amSTL - FCA
1 stop5h 54mUnited Airlines
Deal found 9/16$319

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 septiembre 17, 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

sáb. 10/25

1:08 pm-5:44 pm

Nonstop3h 36m

Chicago O'Hare Intl

vie. 10/31

9:55 am-12:43 pm

Nonstop3h 48m

$269

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

jue. 12/4

2:37 pm-8:57 pm

1 stop5h 20m

Lambert-St Louis

sáb. 12/6

9:00 am-1:35 pm

1 stop5h 35m

$286

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

mié. 10/22

6:31 am-2:19 pm

1 stop6h 48m

Chicago O'Hare Intl

lun. 10/27

6:00 am-12:24 pm

1 stop7h 24m

$288

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

sáb. 10/25

2:32 pm-12:06 am

1 stop8h 34m

Chicago O'Hare Intl

vie. 10/31

3:25 pm-11:57 pm

1 stop9h 32m

$288

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

mar. 12/2

6:06 pm-12:49 am

1 stop5h 43m

Lambert-St Louis

sáb. 12/6

6:30 am-11:31 am

1 stop6h 01m

$291

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

sáb. 10/25

5:20 am-3:00 pm

2 stops8h 40m

Chicago O'Hare Intl

vie. 10/31

5:15 pm-11:09 pm

1 stop6h 54m

$294

KalispellChicago

FCA - MDW

FCAMDW

Kalispell Glacier Park

sáb. 10/25

5:20 am-5:43 pm

2 stops11h 23m

Chicago Midway

vie. 10/31

9:20 am-2:29 pm

1 stop6h 09m

$294

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

jue. 12/4

5:00 am-5:09 pm

2 stops11h 09m

Lambert-St Louis

sáb. 12/6

5:00 pm-11:20 pm

1 stop7h 20m

$296

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

mar. 12/2

6:06 pm-12:49 am

1 stop5h 43m

Lambert-St Louis

dom. 12/7

6:30 am-11:31 am

1 stop6h 01m

$298

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

vie. 10/17

12:00 pm-6:41 pm

1 stop5h 41m

Chicago O'Hare Intl

mar. 10/21

8:57 am-2:29 pm

1 stop6h 32m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 48 results
1
2
3
...
5

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 $245). Flying from Kalispell 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 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 septiembre 17, 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 septiembre 17, 2025.

The most flights from FCA to USIL are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 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 septiembre 17, 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
8.0
Very good
7,961 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

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
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

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
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

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
7,961 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

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 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 American Airlines, United Airlines, and Hawaiian Airlines fly from Kalispell to Illinois in about 3h 36m. The time it takes to get you to your destination can typically vary by up to 3h 12m. 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?

    $144 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Hawaiian Airlines and Delta, with prices starting from $144 and $147, 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 - Chicago Midway and Kalispell Glacier Park - Lambert-St Louis.

  • 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: United Airlines (81%), SkyWest Airlines (74%), Qatar Airways (66%).

  • What are the cheapest flights from Kalispell to Illinois?

    Looking at all options, your cheapest flight can be booked for $175. While the most popular route (Kalispell Glacier Park - Chicago O'Hare Intl) can be booked for $279 on average, our data indicates $984 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 $245). Flying from Kalispell 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kalispell to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Seattle flights
Bozeman to Denver flights
Bozeman to O'Hare Intl flights
Bozeman to Atlanta flights
Bozeman to Minneapolis flights
Bozeman to Las Vegas flights
Kalispell to Dallas/Fort Worth flights
Missoula to Seattle flights
Kalispell to Seattle flights
Missoula to O'Hare Intl flights
Bozeman to San Francisco flights
Bozeman to Los Angeles flights
Missoula to Sky Harbor Intl flights
Bozeman to Dulles Intl flights
Billings to Seattle flights
Bozeman to Dallas/Fort Worth flights
Missoula to Denver flights
Bozeman to Newark flights
Bozeman to Detroit flights
Bozeman to Reagan-National flights
Bozeman to Ontario flights
Billings to Dallas/Fort Worth flights
Bozeman to Baltimore flights
Bozeman to Salt Lake City flights
Bozeman to Portland flights
Billings to Sky Harbor Intl flights
Bozeman to John F Kennedy Intl flights
Bozeman to Sky Harbor Intl flights
Kalispell to Denver flights
Great Falls to Las Vegas flights
Missoula to Portland flights
Bozeman to San Diego flights
Bozeman to Boston flights
Missoula to Minneapolis flights
Bozeman to Orlando flights
Kalispell to Los Angeles flights
Billings to Denver flights
Missoula to San Francisco flights
Bozeman to New Orleans flights
Missoula to Salt Lake City flights
Missoula to Los Angeles flights
Bozeman to LaGuardia flights
Bozeman to Hobby flights
Missoula to John F Kennedy Intl flights
Billings to San Antonio flights
Billings to O'Hare Intl flights
Billings to Las Vegas flights
Billings to Tampa flights
Missoula to Honolulu flights
Bozeman to Nashville flights

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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$191Average$346FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$309Average$478FlexibilityNo cancel feeOn-time69%
DeltaCheapest$328Average$433FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.