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Cheap flights from Great Falls to Chicago from $133

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to Chicago departing on 3/15. 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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Find the cheapest flights from Great Falls to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:30 am - 12:18 pm
GTF
-
ORD
5h 48m
1 stop
Delta Logo
5:00 pm - 10:30 pm
ORD
-
GTF
6h 30m
1 stop
$246Delta
Wed, Mar 18 - Sat, Mar 21
United Airlines Logo
2:30 pm - 9:29 pm
GTF
-
ORD
5h 59m
1 stop
United Airlines Logo
7:00 am - 1:31 pm
ORD
-
GTF
7h 31m
1 stop
$258United Airlines
Wed, Mar 25 - Wed, Apr 1
Delta Logo
5:30 am - 12:18 pm
GTF
-
ORD
5h 48m
1 stop
Delta Logo
6:15 am - 5:42 pm
ORD
-
GTF
12h 27m
2 stops
$264Delta
Thu, Mar 19 - Thu, Mar 26
Delta Logo
1:05 pm - 9:34 pm
GTF
-
ORD
7h 29m
1 stop
Delta Logo
7:20 am - 12:24 pm
ORD
-
GTF
6h 04m
1 stop
$282Delta
Sat, Mar 14 - Wed, Mar 18
Delta Logo
1:07 pm - 9:50 pm
GTF
-
ORD
7h 43m
1 stop
Delta Logo
7:45 am - 12:27 pm
ORD
-
GTF
5h 42m
1 stop
$288Delta
Tue, May 19 - Sat, May 23
United Airlines Logo
2:31 pm - 9:12 pm
GTF
-
ORD
5h 41m
1 stop
United Airlines Logo
6:00 am - 1:32 pm
ORD
-
GTF
8h 32m
1 stop
$315United Airlines
Sat, Aug 22 - Sun, Aug 30
Delta Logo
5:30 am - 12:18 pm
GTF
-
ORD
5h 48m
1 stop
Delta Logo
7:10 am - 5:42 pm
ORD
-
GTF
11h 32m
2 stops
$323Delta
Wed, Mar 18 - Sat, Mar 21
United Airlines Logo
12:30 pm - 4:48 pm
GTF
-
ORD
3h 18mnonstop
United Airlines Logo
2:33 pm - 9:34 pm
ORD
-
GTF
8h 01m
1 stop
$327United Airlines
Wed, Jul 22 - Wed, Jul 29
United Airlines Logo
2:35 pm - 11:57 pm
GTF
-
ORD
8h 22m
1 stop
United Airlines Logo
8:40 am - 11:23 am
ORD
-
GTF
3h 43mnonstop
$328United Airlines
Wed, May 20 - Sat, May 23
United Airlines Logo
2:35 pm - 11:57 pm
GTF
-
ORD
8h 22m
1 stop
United Airlines Logo
2:33 pm - 9:34 pm
ORD
-
GTF
8h 01m
1 stop
$338United Airlines
Wed, May 20 - Sat, May 23

Delta flights from Great Falls to Chicago

Our best Delta deals on Great Falls to Chicago flight tickets
Delta
Mar 18
GTF5:30 amGreat Falls
5h 48m
1 stop
ORD12:18 pmChicago O'Hare Intl
Mar 21
ORD5:00 pmChicago O'Hare Intl
6h 30m
1 stop
GTF10:30 pmGreat Falls
$246
Delta
Mar 19
GTF5:30 amGreat Falls
5h 48m
1 stop
ORD12:18 pmChicago O'Hare Intl
Mar 26
ORD6:15 amChicago O'Hare Intl
12h 27m
2 stops
GTF5:42 pmGreat Falls
$264
Delta
Mar 14
GTF1:05 pmGreat Falls
7h 29m
1 stop
ORD9:34 pmChicago O'Hare Intl
Mar 18
ORD7:20 amChicago O'Hare Intl
6h 04m
1 stop
GTF12:24 pmGreat Falls
$282

Alaska Airlines flights from Great Falls to Chicago

Our best Alaska Airlines deals on Great Falls to Chicago flight tickets
Alaska Airlines
Aug 22
GTF4:55 pmGreat Falls
19h 14m
2 stops
ORD1:09 pmChicago O'Hare Intl
Aug 30
ORD8:00 amChicago O'Hare Intl
9h 13m
1 stop
GTF4:13 pmGreat Falls
$555
Alaska Airlines
Jul 20
GTF5:03 pmGreat Falls
12h 17m
1 stop
ORD6:20 amChicago O'Hare Intl
Jul 31
ORD8:02 amChicago O'Hare Intl
9h 21m
1 stop
GTF4:23 pmGreat Falls
$565
Alaska Airlines
Jul 22
GTF5:03 pmGreat Falls
12h 17m
1 stop
ORD6:20 amChicago O'Hare Intl
Jul 30
ORD8:02 amChicago O'Hare Intl
9h 21m
1 stop
GTF4:23 pmGreat Falls
$586

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 February 28, 2026.
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

Wed 3/18

5:30 am-12:18 pm

1 stop5h 48m

Chicago O'Hare Intl

Sat 3/21

5:00 pm-10:30 pm

1 stop6h 30m

$246

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 3/25

2:30 pm-9:29 pm

1 stop5h 59m

Chicago O'Hare Intl

Wed 4/1

7:00 am-1:31 pm

1 stop7h 31m

$258

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 3/19

5:30 am-12:18 pm

1 stop5h 48m

Chicago O'Hare Intl

Thu 3/26

6:15 am-5:42 pm

2 stops12h 27m

$264

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 3/14

1:05 pm-9:34 pm

1 stop7h 29m

Chicago O'Hare Intl

Wed 3/18

7:20 am-12:24 pm

1 stop6h 04m

$282

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 5/19

1:07 pm-9:50 pm

1 stop7h 43m

Chicago O'Hare Intl

Sat 5/23

7:45 am-12:27 pm

1 stop5h 42m

$288

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 8/22

2:31 pm-9:12 pm

1 stop5h 41m

Chicago O'Hare Intl

Sun 8/30

6:00 am-1:32 pm

1 stop8h 32m

$315

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 3/18

5:30 am-12:18 pm

1 stop5h 48m

Chicago O'Hare Intl

Sat 3/21

7:10 am-5:42 pm

2 stops11h 32m

$323

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 7/22

12:30 pm-4:48 pm

Nonstop3h 18m

Chicago O'Hare Intl

Wed 7/29

2:33 pm-9:34 pm

1 stop8h 01m

$327

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 5/20

2:35 pm-11:57 pm

1 stop8h 22m

Chicago O'Hare Intl

Sat 5/23

8:40 am-11:23 am

Nonstop3h 43m

$328

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 5/20

2:35 pm-11:57 pm

1 stop8h 22m

Chicago O'Hare Intl

Sat 5/23

2:33 pm-9:34 pm

1 stop8h 01m

$338

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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

$318

Fastest flight time

3h 18m

Direct flights

Wed, Thu and Sun

Airports in Chicago

3 airports
The best flight deal from Great Falls to Chicago found on momondo in the last 72 hours is $318
The fastest flight from Great Falls to Chicago takes 3h 18m
Direct flights go from Great Falls to Chicago on Wednesday, Thursday and Sunday. There are no airlines offering direct flights.
There are 3 airports in Chicago. From Great Falls there are direct flights to Chicago O'Hare Intl (ORD).
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 3h 18m.

  • 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 plane model from Great Falls to Chicago?

  • 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
9,370 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
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.

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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