What is the cheapest airline that flies from Kalispell Glacier Park to Illinois?

American Airlines, Delta, and Alaska Airlines are the most popular carriers operating from Kalispell Glacier Park to Illinois

What airlines fly to Illinois?

American Airlines, United Airlines and Alaska Airlines are the top three most popular airlines that fly to Illinois from Kalispell according to our data. American Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Kalispell Glacier Park Airport to Illinois?

Prices for flights from Kalispell Glacier Park Airport to Illinois are updated daily.

How many operators does momondo search for flights from Kalispell Glacier Park Airport to Illinois?

As of May 2026, there are 3 operators available to choose from for flights from Kalispell Glacier Park Airport to Illinois.

How old do you have to be to fly from Kalispell Glacier Park Airport to Illinois?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kalispell Glacier Park Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$149 Cheap Flights from Kalispell to Illinois in 2026

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Find the cheapest flights from Kalispell to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:14 pm - 4:37 pm

FCA

STL

23h 23m

1 stop

5:33 pm - 5:00 pm

STL

FCA

24h 27m

1 stop

$309Alaska Airlines

Tue, Jun 2 - Sat, Jun 6

10:42 am - 9:30 pm

FCA

STL

9h 48m

2 stops

5:10 am - 10:01 am

STL

FCA

5h 51m

1 stop

$314United Airlines

Tue, Jun 2 - Sat, Jun 6

12:35 pm - 5:05 pm

FCA

ORD

3h 30mnonstop

8:40 am - 11:29 am

ORD

FCA

3h 49mnonstop

$319United Airlines

Fri, Jun 5 - Mon, Jun 8

5:28 pm - 12:44 am

FCA

ORD

6h 16m

1 stop

8:40 am - 11:29 am

ORD

FCA

3h 49mnonstop

$329United Airlines

Fri, Jun 5 - Mon, Jun 8

5:28 pm - 11:57 pm

FCA

STL

5h 29m

1 stop

5:10 am - 10:01 am

STL

FCA

5h 51m

1 stop

$334United Airlines

Sun, May 31 - Thu, Jun 4

1:20 pm - 9:50 pm

FCA

ORD

7h 30m

1 stop

7:45 am - 12:47 pm

ORD

FCA

6h 02m

1 stop

$339Delta

Fri, Jun 5 - Tue, Jun 9

5:13 am - 11:52 am

FCA

ORD

5h 39m

1 stop

2:07 pm - 11:38 pm

ORD

FCA

10h 31m

2 stops

$344Delta

Fri, Jun 5 - Mon, Jun 8

6:07 pm - 8:38 am

FCA

ORD

13h 31m

2 stops

2:07 pm - 11:38 pm

ORD

FCA

10h 31m

2 stops

$349Delta

Sat, Jun 6 - Wed, Jun 10

1:35 pm - 6:10 pm

FCA

ORD

3h 35mnonstop

1:16 pm - 4:02 pm

ORD

FCA

3h 46mnonstop

$353American Airlines

Thu, Jun 11 - Mon, Jun 29

3:51 pm - 12:39 am

FCA

ORD

7h 48m

1 stop

10:05 am - 12:45 pm

ORD

FCA

3h 40mnonstop

$354American Airlines

Fri, Jun 5 - Mon, Jun 8

Delta flights from Kalispell to Illinois

Our best Delta deals on Kalispell to Illinois flight tickets

Delta

Jun 5

FCA1:20 pmKalispell Glacier Park

7h 30m

1 stop

ORD9:50 pmChicago O'Hare Intl

Jun 9

ORD7:45 amChicago O'Hare Intl

6h 02m

1 stop

FCA12:47 pmKalispell Glacier Park

$339

Delta

Jun 5

FCA5:13 amKalispell Glacier Park

5h 39m

1 stop

ORD11:52 amChicago O'Hare Intl

Jun 8

ORD2:07 pmChicago O'Hare Intl

10h 31m

2 stops

FCA11:38 pmKalispell Glacier Park

$344

Delta

Jun 6

FCA6:07 pmKalispell Glacier Park

12h 58m

2 stops

ORD8:05 amChicago O'Hare Intl

Jun 8

ORD2:07 pmChicago O'Hare Intl

10h 31m

2 stops

FCA11:38 pmKalispell Glacier Park

$349

United Airlines flights from Kalispell to Illinois

Our best United Airlines deals on Kalispell to Illinois flight tickets

United Airlines

Jun 2

FCA10:42 amKalispell Glacier Park

9h 48m

2 stops

STL9:30 pmLambert-St Louis

Jun 6

STL5:10 amLambert-St Louis

5h 51m

1 stop

FCA10:01 amKalispell Glacier Park

$314

United Airlines

Jun 5

FCA12:35 pmKalispell Glacier Park

3h 30m

ORD5:05 pmChicago O'Hare Intl

Jun 8

ORD8:40 amChicago O'Hare Intl

3h 49m

FCA11:29 amKalispell Glacier Park

$319

United Airlines

Jun 5

FCA5:28 pmKalispell Glacier Park

6h 16m

1 stop

ORD12:44 amChicago O'Hare Intl

Jun 8

ORD8:40 amChicago O'Hare Intl

3h 49m

FCA11:29 amKalispell Glacier Park

$329

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Tue 6/2

4:14 pm-4:37 pm

1 stop23h 23m

Lambert-St Louis

Sat 6/6

5:33 pm-5:00 pm

1 stop24h 27m

$309

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Tue 6/2

10:42 am-9:30 pm

2 stops9h 48m

Lambert-St Louis

Sat 6/6

5:10 am-10:01 am

1 stop5h 51m

$314

Quickest round-trip

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Fri 6/5

12:35 pm-5:05 pm

Nonstop3h 30m

Chicago O'Hare Intl

Mon 6/8

8:40 am-11:29 am

Nonstop3h 49m

$319

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Fri 6/5

5:28 pm-12:44 am

1 stop6h 16m

Chicago O'Hare Intl

Mon 6/8

8:40 am-11:29 am

Nonstop3h 49m

$329

KalispellSt. Louis

FCA - STL

FCASTL

Kalispell Glacier Park

Sun 5/31

5:28 pm-11:57 pm

1 stop5h 29m

Lambert-St Louis

Thu 6/4

5:10 am-10:01 am

1 stop5h 51m

$334

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Fri 6/5

1:20 pm-9:50 pm

1 stop7h 30m

Chicago O'Hare Intl

Tue 6/9

7:45 am-12:47 pm

1 stop6h 02m

$339

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Fri 6/5

5:13 am-11:52 am

1 stop5h 39m

Chicago O'Hare Intl

Mon 6/8

2:07 pm-11:38 pm

2 stops10h 31m

$344

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Sat 6/6

6:07 pm-8:38 am

2 stops13h 31m

Chicago O'Hare Intl

Wed 6/10

2:07 pm-11:38 pm

2 stops10h 31m

$349

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Thu 6/11

1:35 pm-6:10 pm

Nonstop3h 35m

Chicago O'Hare Intl

Mon 6/29

1:16 pm-4:02 pm

Nonstop3h 46m

$353

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Fri 6/5

3:51 pm-12:39 am

1 stop7h 48m

Chicago O'Hare Intl

Mon 6/8

10:05 am-12:45 pm

Nonstop3h 40m

$354

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Kalispell to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Kalispell is in September. Flight prices, which tend to average around $191, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $199.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Kalispell to Illinois is on a Friday when prices can be found for as low as $486. Flights from Kalispell to Illinois on a Sunday will generally be more expensive and average around $896. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is at noon. Flights from Kalispell to Illinois during this time can be as low as $454. Flights in the morning are often more expensive with an average ticket price of $593.

What is the cheapest Kalispell Glacier Park to Illinois flight route?

Fly from Kalispell Glacier Park to Chicago O'Hare Intl for the best Kalispell Glacier Park - Illinois flight prices

What cabin class options are available on Kalispell to Illinois flights?

There are 4 cabin classes available to choose from on Kalispell to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Kalispell to Illinois flights?

You could potentially save up to 33% on your flight if you consider stops on a Kalispell to Illinois flight.

Cheap Kalispell to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kalispell to Illinois

Best Price Found	$245
Fastest flight time	3h 30m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Kalispell in the past 72 hours is $245. The best round-trip flight deal from Kalispell to Illinois found on momondo in the last 72 hours is $389.

The fastest flight from Kalispell to Illinois takes 3h 30m

Direct flights go from Kalispell to Illinois every day.

There are 98 airports in Illinois. From Kalispell there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

Frequently asked questions about flying from Kalispell to Illinois

When did momondo last update prices for flights from Kalispell Glacier Park Airport to Illinois?
Prices for flights from Kalispell Glacier Park Airport to Illinois are updated daily.
How many operators does momondo search for flights from Kalispell Glacier Park Airport to Illinois?
As of May 2026, there are 3 operators available to choose from for flights from Kalispell Glacier Park Airport to Illinois.
How old do you have to be to fly from Kalispell Glacier Park Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kalispell Glacier Park Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Kalispell to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Kalispell to Illinois is Boeing 737-800 (36.84% of total bookings). The next most popular plane models are Airbus A319 (30.53%), Boeing 737-900 (11.58%), and Embraer 175 (Enhanced Winglets) (7.37%).

Best airlines flying from Kalispell to Illinois

Compare and see reviews for airlines that fly from Kalispell to Illinois with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $191	Free Cancellation	Rating 7.1 11,642 reviews		Search American Airlines flights
United Airlines	PriceFrom $289	Free Cancellation	Rating 7.4 9,736 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Kalispell to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Kalispell to Illinois for you.

Can I find flights from Kalispell to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Kalispell which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Kalispell to Illinois?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Kalispell to Illinois.

I’m not ready to book a flight from Kalispell to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Kalispell to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.