What is the cheapest airline that flies from Great Falls to Chicago?

Delta is the most popular carrier operating from Great Falls to Chicago

When did momondo last update prices for flights from Great Falls Airport to Chicago?

Prices for flights from Great Falls Airport to Chicago were last updated today.

How many operators does momondo search for flights from Great Falls Airport to Chicago?

As of January 2026, there is 1 operator available to choose from for flights from Great Falls Airport to Chicago.

How old do you have to be to fly from Great Falls Airport to Chicago?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Great Falls Airport to Chicago.

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

The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$122 Cheap Flights from Great Falls to Chicago in 2026

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Find the cheapest flights from Great Falls to Chicago

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:05 pm - 9:34 pm

GTF

ORD

7h 29m

1 stop

6:15 am - 5:42 pm

ORD

GTF

12h 27m

2 stops

$250Delta

Thu, Mar 19 - Wed, Mar 25

2:30 pm - 11:52 pm

GTF

ORD

8h 22m

1 stop

7:00 am - 1:33 pm

ORD

GTF

7h 33m

1 stop

$258United Airlines

Fri, Mar 20 - Tue, Mar 24

2:30 pm - 9:29 pm

GTF

ORD

5h 59m

1 stop

7:00 am - 1:33 pm

ORD

GTF

7h 33m

1 stop

$280United Airlines

Thu, Mar 19 - Wed, Mar 25

2:29 pm - 10:44 pm

GTF

ORD

7h 15m

1 stop

7:00 am - 1:33 pm

ORD

GTF

7h 33m

1 stop

$324United Airlines

Tue, Jun 2 - Tue, Jun 16

1:15 pm - 9:52 pm

GTF

ORD

7h 37m

1 stop

7:15 am - 12:30 pm

ORD

GTF

6h 15m

1 stop

$373Delta

Fri, Feb 20 - Fri, Feb 27

1:15 pm - 9:52 pm

GTF

ORD

7h 37m

1 stop

7:15 am - 12:30 pm

ORD

GTF

6h 15m

1 stop

$396Delta

Fri, Feb 27 - Mon, Mar 2

6:20 pm - 7:26 am

GTF

ORD

12h 06m

2 stops

7:15 am - 12:23 pm

ORD

GTF

6h 08m

1 stop

$402Delta

Fri, Jul 24 - Mon, Jul 27

4:57 pm - 1:11 pm

GTF

ORD

19h 14m

2 stops

5:29 pm - 4:17 pm

ORD

GTF

23h 48m

1 stop

$412Alaska Airlines

Fri, Feb 27 - Mon, Mar 2

2:29 pm - 9:15 pm

GTF

ORD

5h 46m

1 stop

7:10 am - 1:43 pm

ORD

GTF

7h 33m

1 stop

$413United Airlines

Wed, Feb 11 - Sun, Feb 15

4:57 pm - 11:56 pm

GTF

ORD

29h 59m

1 stop

7:00 am - 4:17 pm

ORD

GTF

10h 17m

1 stop

$415Alaska Airlines

Tue, Feb 17 - Mon, Feb 23

Alaska Airlines flights from Great Falls to Chicago

Our best Alaska Airlines deals on Great Falls to Chicago flight tickets

Alaska Airlines

Feb 27

GTF4:57 pmGreat Falls

19h 14m

2 stops

ORD1:11 pmChicago O'Hare Intl

Mar 2

ORD5:29 pmChicago O'Hare Intl

23h 48m

1 stop

GTF4:17 pmGreat Falls

$412

Alaska Airlines

Feb 17

GTF4:57 pmGreat Falls

29h 59m

1 stop

ORD11:56 pmChicago O'Hare Intl

Feb 23

ORD7:00 amChicago O'Hare Intl

10h 17m

1 stop

GTF4:17 pmGreat Falls

$415

Alaska Airlines

Feb 20

GTF4:57 pmGreat Falls

19h 14m

2 stops

ORD1:11 pmChicago O'Hare Intl

Feb 27

ORD3:54 pmChicago O'Hare Intl

26h 54m

1 stop

GTF5:48 pmGreat Falls

$432

Delta flights from Great Falls to Chicago

Our best Delta deals on Great Falls to Chicago flight tickets

Delta

Mar 19

GTF1:05 pmGreat Falls

7h 29m

1 stop

ORD9:34 pmChicago O'Hare Intl

Mar 25

ORD6:15 amChicago O'Hare Intl

12h 27m

2 stops

GTF5:42 pmGreat Falls

$250

Delta

Feb 20

GTF1:15 pmGreat Falls

7h 37m

1 stop

ORD9:52 pmChicago O'Hare Intl

Feb 27

ORD7:15 amChicago O'Hare Intl

6h 15m

1 stop

GTF12:30 pmGreat Falls

$373

Delta

Feb 27

GTF1:15 pmGreat Falls

7h 37m

1 stop

ORD9:52 pmChicago O'Hare Intl

Mar 2

ORD7:15 amChicago O'Hare Intl

6h 15m

1 stop

GTF12:30 pmGreat Falls

$396

Fly from

Fly to

Route

Depart

Return

Price

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 3/19

1:05 pm-9:34 pm

1 stop7h 29m

Chicago O'Hare Intl

Wed 3/25

6:15 am-5:42 pm

2 stops12h 27m

$250

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 3/20

2:30 pm-11:52 pm

1 stop8h 22m

Chicago O'Hare Intl

Tue 3/24

7:00 am-1:33 pm

1 stop7h 33m

$258

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 3/19

2:30 pm-9:29 pm

1 stop5h 59m

Chicago O'Hare Intl

Wed 3/25

7:00 am-1:33 pm

1 stop7h 33m

$280

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 6/2

2:29 pm-10:44 pm

1 stop7h 15m

Chicago O'Hare Intl

Tue 6/16

7:00 am-1:33 pm

1 stop7h 33m

$324

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 2/20

1:15 pm-9:52 pm

1 stop7h 37m

Chicago O'Hare Intl

Fri 2/27

7:15 am-12:30 pm

1 stop6h 15m

$373

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 2/27

1:15 pm-9:52 pm

1 stop7h 37m

Chicago O'Hare Intl

Mon 3/2

7:15 am-12:30 pm

1 stop6h 15m

$396

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 7/24

6:20 pm-7:26 am

2 stops12h 06m

Chicago O'Hare Intl

Mon 7/27

7:15 am-12:23 pm

1 stop6h 08m

$402

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 2/27

4:57 pm-1:11 pm

2 stops19h 14m

Chicago O'Hare Intl

Mon 3/2

5:29 pm-4:17 pm

1 stop23h 48m

$412

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 2/11

2:29 pm-9:15 pm

1 stop5h 46m

Chicago O'Hare Intl

Sun 2/15

7:10 am-1:43 pm

1 stop7h 33m

$413

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 2/17

4:57 pm-11:56 pm

1 stop29h 59m

Chicago O'Hare Intl

Mon 2/23

7:00 am-4:17 pm

1 stop10h 17m

$415

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from Great Falls to Chicago

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 Great Falls to Chicago flight route?

Fly from Great Falls to Chicago O'Hare Intl for the best Great Falls - Chicago flight prices

What cabin class options are available on Great Falls to Chicago flights?

There are 3 cabin classes available to choose from on Great Falls to Chicago 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 Great Falls to Chicago flights?

You could potentially save up to 36% on your flight if you consider stops on a Great Falls to Chicago flight.

When to book flights from Great Falls to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Great Falls to Chicago according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Great Falls to Chicago (GTF to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Great Falls to Chicago

Best Price Found	$593
Fastest flight time	5h 48m
Direct flights	None

The best flight deal from Great Falls to Chicago found on momondo in the last 72 hours is $593

The fastest flight from Great Falls to Chicago takes 5h 48m

There are no direct flights from Great Falls to Chicago. There are no popular flight routes from Great Falls to Chicago.

Search flight deals

How far is Great Falls to Chicago by plane?
A flight from Great Falls to Chicago will travel around 1219.6 mi. In terms of flight time, this usually takes a little over 5h 48m.
When did momondo last update prices for flights from Great Falls Airport to Chicago?
Prices for flights from Great Falls Airport to Chicago were last updated today.
How many operators does momondo search for flights from Great Falls Airport to Chicago?
As of January 2026, there is 1 operator available to choose from for flights from Great Falls Airport to Chicago.
How old do you have to be to fly from Great Falls Airport to Chicago?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Great Falls Airport to Chicago.
What documentation or ID do you need to fly to Chicago?
The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Great Falls to Chicago?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Great Falls to Chicago is Embraer 175 (Enhanced Winglets) (100.00% of total bookings).
What is the most popular airline from Great Falls to Chicago?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Great Falls to Chicago is Delta (61% of total bookings). The next most popular airline is United Airlines (39%).

Best airlines flying from Great Falls to Chicago

Compare and see reviews for airlines that fly from Great Falls to Chicago with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $277	Free Cancellation	Rating 7.4 9,215 reviews		Search United Airlines flights

Merrillville

New Buffalo

Hammond

Benton Harbor

Saint Joseph

Portage

Lansing

Schererville

Valparaiso

Munster

Crown Point

Chesterton

Monticello

Porter

Griffith

Saint John

Why use momondo?

Why should I use momondo to find a flight deal from Great Falls to Chicago?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Great Falls to Chicago. momondo saves you time and could save you money on your trip.

Can I find flights from Great Falls to Chicago with flexible booking policies on momondo?

Flights from Great Falls to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Great Falls to Chicago?

Once you have performed a search for Great Falls to Chicago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Chicago from Great Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.