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Cheap flights from Great Falls to Chicago from $332

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to Chicago departing on 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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Multiple Airlines Logo
10:45 am - 10:43 am
GTF
-
ORD
22h 58m1 stop
Multiple Airlines Logo
10:41 pm - 4:28 pm
ORD
-
GTF
18h 47m1 stop
$332Multiple Airlines
Thu, Jan 15 - Sun, Jan 18
Alaska Airlines Logo
6:28 pm - 2:05 pm
GTF
-
ORD
18h 37m1 stop
Alaska Airlines Logo
7:00 am - 5:48 pm
ORD
-
GTF
11h 48m1 stop
$352Alaska Airlines
Sat, Feb 14 - Wed, Feb 18
Multiple Airlines Logo
10:45 am - 9:24 pm
GTF
-
ORD
33h 39m2 stops
Multiple Airlines Logo
10:41 pm - 4:28 pm
ORD
-
GTF
18h 47m1 stop
$369Multiple Airlines
Thu, Jan 15 - Sun, Jan 18
Alaska Airlines Logo
6:28 pm - 1:11 pm
GTF
-
ORD
17h 43m2 stops
Alaska Airlines Logo
7:00 am - 5:48 pm
ORD
-
GTF
11h 48m1 stop
$407Alaska Airlines
Sat, Feb 14 - Wed, Feb 18
Alaska Airlines Logo
6:28 pm - 1:11 pm
GTF
-
ORD
17h 43m2 stops
Alaska Airlines Logo
7:00 am - 5:48 pm
ORD
-
GTF
11h 48m1 stop
$417Alaska Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
6:15 am - 1:19 pm
GTF
-
ORD
6h 04m1 stop
United Airlines Logo
5:50 pm - 10:46 pm
ORD
-
GTF
5h 56m1 stop
$484United Airlines
Mon, Dec 29 - Fri, Jan 2
Alaska Airlines Logo
5:59 pm - 1:10 pm
GTF
-
ORD
18h 11m2 stops
Alaska Airlines Logo
2:06 pm - 5:19 pm
ORD
-
GTF
28h 13m2 stops
$524Alaska Airlines
Thu, Jan 15 - Sun, Jan 18
United Airlines Logo
6:15 am - 6:21 am
GTF
-
ORD
23h 06m2 stops
United Airlines Logo
5:50 pm - 10:46 pm
ORD
-
GTF
5h 56m1 stop
$666United Airlines
Mon, Dec 29 - Fri, Jan 2
United Airlines Logo
2:35 pm - 11:00 pm
GTF
-
ORD
7h 25m1 stop
United Airlines Logo
7:10 am - 1:39 pm
ORD
-
GTF
7h 29m1 stop
$748United Airlines
Tue, Dec 30 - Sat, Jan 3
Delta Logo
6:18 pm - 9:05 am
GTF
-
MDW
13h 47m2 stops
Delta Logo
9:29 am - 5:38 pm
MDW
-
GTF
9h 09m2 stops
$1,980Delta
Tue, Dec 30 - Sat, Jan 3

Alaska Airlines flights from Great Falls to Chicago

Our best Alaska Airlines deals on Great Falls to Chicago flight tickets
Alaska Airlines
Feb 14
GTF6:28 pmGreat Falls
18h 37m
1 stop
ORD2:05 pmChicago O'Hare Intl
Feb 18
ORD7:00 amChicago O'Hare Intl
11h 48m
1 stop
GTF5:48 pmGreat Falls
$352
Find similar
Alaska Airlines
Feb 14
GTF6:28 pmGreat Falls
17h 43m
2 stops
ORD1:11 pmChicago O'Hare Intl
Feb 18
ORD7:00 amChicago O'Hare Intl
11h 48m
1 stop
GTF5:48 pmGreat Falls
$407
Find similar
Alaska Airlines
Feb 14
GTF6:28 pmGreat Falls
17h 43m
2 stops
ORD1:11 pmChicago O'Hare Intl
Feb 18
ORD7:00 amChicago O'Hare Intl
11h 48m
1 stop
GTF5:48 pmGreat Falls
$417
Find similar

United Airlines flights from Great Falls to Chicago

Our best United Airlines deals on Great Falls to Chicago flight tickets
United Airlines
Dec 29
GTF6:15 amGreat Falls
6h 04m
1 stop
ORD1:19 pmChicago O'Hare Intl
Jan 2
ORD5:50 pmChicago O'Hare Intl
5h 56m
1 stop
GTF10:46 pmGreat Falls
$484
Find similar
United Airlines
Dec 29
GTF6:15 amGreat Falls
23h 06m
2 stops
ORD6:21 amChicago O'Hare Intl
Jan 2
ORD5:50 pmChicago O'Hare Intl
5h 56m
1 stop
GTF10:46 pmGreat Falls
$666
Find similar
United Airlines
Dec 30
GTF2:35 pmGreat Falls
7h 25m
1 stop
ORD11:00 pmChicago O'Hare Intl
Jan 3
ORD7:10 amChicago O'Hare Intl
7h 29m
1 stop
GTF1:39 pmGreat Falls
$748
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Great Falls to Chicago 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, momondo users made 832,500 searches. Data last updated December 16, 2025.
Use the filters below to find and compare flights from Great Falls to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 1/15

10:45 am-10:43 am

1 stop22h 58m

Chicago O'Hare Intl

Sun 1/18

10:41 pm-4:28 pm

1 stop18h 47m

$332

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 2/14

6:28 pm-2:05 pm

1 stop18h 37m

Chicago O'Hare Intl

Wed 2/18

7:00 am-5:48 pm

1 stop11h 48m

$352

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 1/15

10:45 am-9:24 pm

2 stops33h 39m

Chicago O'Hare Intl

Sun 1/18

10:41 pm-4:28 pm

1 stop18h 47m

$369

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 2/14

6:28 pm-1:11 pm

2 stops17h 43m

Chicago O'Hare Intl

Wed 2/18

7:00 am-5:48 pm

1 stop11h 48m

$407

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 2/14

6:28 pm-1:11 pm

2 stops17h 43m

Chicago O'Hare Intl

Wed 2/18

7:00 am-5:48 pm

1 stop11h 48m

$417

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Mon 12/29

6:15 am-1:19 pm

1 stop6h 04m

Chicago O'Hare Intl

Fri 1/2

5:50 pm-10:46 pm

1 stop5h 56m

$484

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 1/15

5:59 pm-1:10 pm

2 stops18h 11m

Chicago O'Hare Intl

Sun 1/18

2:06 pm-5:19 pm

2 stops28h 13m

$524

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Mon 12/29

6:15 am-6:21 am

2 stops23h 06m

Chicago O'Hare Intl

Fri 1/2

5:50 pm-10:46 pm

1 stop5h 56m

$666

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 12/30

2:35 pm-11:00 pm

1 stop7h 25m

Chicago O'Hare Intl

Sat 1/3

7:10 am-1:39 pm

1 stop7h 29m

$748

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

Tue 12/30

6:18 pm-9:05 am

2 stops13h 47m

Chicago Midway

Sat 1/3

9:29 am-5:38 pm

2 stops9h 09m

$1,980

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Chicago from

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

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

The cheapest day to depart on your flight to Chicago is on a Tuesday when prices can be found for as low as $299. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Great Falls to Chicago for around $661.

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

Our most recent data shows that the best time of day to fly to Chicago is in the afternoon. Flights from Great Falls to Chicago during this time can be as low as $349. In contrast, the most expensive time of day to depart to Chicago is in the morning when prices are around $660.

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

Fastest flight time

7h 25m

Direct flights

None
The fastest flight from Great Falls to Chicago takes 7h 25m
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 7h 25m.

  • 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?

  • 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 airline from Great Falls to Chicago?

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 AirlinesPriceFrom $277Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Saint Joseph
Portage
Lansing
Valparaiso
Schererville
Crown Point
Munster
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.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport