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$109+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
FCA — ORD
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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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 junio 12, 2025.

Round-trip from

$225
(American Airlines)

One-way from

$109
(Mytrip)

Popular in

February

Cheapest in

January

Average price

$482

Good round-trip deal

$400 or less

Good one-way deal

$231 or less
From Kalispell Glacier Park to Illinois
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One-way flight from Kalispell Glacier Park to Illinois
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Highest demand for flights based on searches. 14% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($20 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 Kalispell Glacier Park to Illinois.
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Price to beat on a one-way flight from Kalispell Glacier Park to Illinois.
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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 junio 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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. 10/241:16 pmFCA - ORD
Nonstop3h 26mAmerican Airlines
sáb. 11/19:56 amORD - FCA
Nonstop3h 39mAmerican Airlines
Deal found 6/11$237
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/176:35 pmFCA - ORD
1 stop10h 46mAlaska Airlines
mar. 10/216:00 amORD - FCA
1 stop7h 22mAlaska Airlines
Deal found 6/10$256
This Delta deal was found by Cheapflights users on 6/11. 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. 10/245:25 amFCA - ORD
1 stop5h 59mDelta
sáb. 11/15:00 pmORD - FCA
1 stop7h 07mDelta
Deal found 6/11$257
This Hawaiian Airlines deal was found by Cheapflights users on 6/12. 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.
vie. 10/242:37 pmFCA - ORD
1 stop8h 22mHawaiian Airlines
dom. 11/25:00 amORD - FCA
1 stop7h 21mHawaiian Airlines
Deal found 6/12$269
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.
jue. 6/265:14 pmFCA - STL
1 stop5h 45mUnited Airlines
lun. 6/305:00 amSTL - FCA
1 stop7h 36mUnited Airlines
Deal found 6/10$270
This United Airlines deal was found by Cheapflights users on 6/11. 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. 6/2612:42 pmFCA - ORD
Nonstop3h 28mUnited Airlines
lun. 6/308:45 amORD - FCA
Nonstop3h 51mUnited Airlines
Deal found 6/11$307
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/11:15 pmFCA - ORD
1 stop15h 57mMultiple Airlines
vie. 7/411:50 amORD - FCA
2 stops28h 01mMultiple Airlines
Deal found 6/10$313
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.
jue. 8/76:11 pmFCA - STL
1 stop5h 27mDelta
dom. 8/107:15 pmSTL - FCA
1 stop6h 10mDelta
Deal found 6/10$318
This Sun Country Air deal was found by Cheapflights users on 6/12. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/2810:53 amFCA - ORD
1 stop8h 46mSun Country Air
dom. 7/66:15 pmORD - FCA
1 stop17h 14mSun Country Air
Deal found 6/12$338
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.
vie. 9/123:49 pmFCA - STL
1 stop6h 01mAmerican Airlines
dom. 9/145:55 amSTL - FCA
1 stop7h 43mAmerican Airlines
Deal found 6/10$365
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/121:07 pmFCA - STL
2 stops9h 52mAlaska Airlines
dom. 9/146:30 pmSTL - FCA
1 stop6h 29mAlaska Airlines
Deal found 6/10$396
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/2610:40 amFCA - STL
2 stops22h 53mMultiple Airlines
lun. 6/3011:28 amSTL - FCA
2 stops25h 57mMultiple Airlines
Deal found 6/10$484

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 junio 12, 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

vie. 10/24

1:16 pm-5:42 pm

Nonstop3h 26m

Chicago O'Hare Intl

sáb. 11/1

9:56 am-12:35 pm

Nonstop3h 39m

$237

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

vie. 10/17

6:35 pm-6:21 am

1 stop10h 46m

Chicago O'Hare Intl

mar. 10/21

6:00 am-12:22 pm

1 stop7h 22m

$256

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

vie. 10/24

5:25 am-12:24 pm

1 stop5h 59m

Chicago O'Hare Intl

sáb. 11/1

5:00 pm-11:07 pm

1 stop7h 07m

$257

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

vie. 10/24

2:37 pm-11:59 pm

1 stop8h 22m

Chicago O'Hare Intl

dom. 11/2

5:00 am-11:21 am

1 stop7h 21m

$269

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

jue. 6/26

5:14 pm-11:59 pm

1 stop5h 45m

Lambert-St Louis

lun. 6/30

5:00 am-11:36 am

1 stop7h 36m

$270

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

jue. 6/26

12:42 pm-5:10 pm

Nonstop3h 28m

Chicago O'Hare Intl

lun. 6/30

8:45 am-11:36 am

Nonstop3h 51m

$307

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

mar. 7/1

1:15 pm-6:12 am

1 stop15h 57m

Chicago O'Hare Intl

vie. 7/4

11:50 am-2:51 pm

2 stops28h 01m

$313

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

jue. 8/7

6:11 pm-12:38 am

1 stop5h 27m

Lambert-St Louis

dom. 8/10

7:15 pm-12:25 am

1 stop6h 10m

$318

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

sáb. 6/28

10:53 am-8:39 pm

1 stop8h 46m

Chicago O'Hare Intl

dom. 7/6

6:15 pm-10:29 am

1 stop17h 14m

$338

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

vie. 9/12

3:49 pm-10:50 pm

1 stop6h 01m

Lambert-St Louis

dom. 9/14

5:55 am-12:38 pm

1 stop7h 43m

$365

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 29 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 $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 junio 12, 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 junio 12, 2025.

The most flights from FCA to USIL are scheduled on a Monday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 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 junio 12, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and Hawaiian Airlines from Kalispell to Illinois to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
725 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    $114 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $119 and $129, 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 cheapest flights from Kalispell to Illinois?

    Looking at all options, your cheapest flight can be booked for $151. While the most popular route (Kalispell Glacier Park - Chicago O'Hare Intl) can be booked for $305 on average our data indicates $392 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.

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Alternative routes for Kalispell to Illinois

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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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$257Average$316FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$309Average$496FlexibilityNo cancel feeOn-time69%
DeltaCheapest$328Average$433FlexibilityNo cancel feeOn-timeN/A

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