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Cheap flights from Great Falls to Chicago from $138

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 2/7. 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.
United Airlines Logo
2:29 pm - 11:59 pm
GTF
-
ORD
8h 30m
1 stop
United Airlines Logo
3:59 pm - 9:53 pm
ORD
-
GTF
6h 54m
1 stop
$318United Airlines
Sat, Jan 24 - Tue, Jan 27
Delta Logo
1:12 pm - 9:52 pm
GTF
-
ORD
7h 40m
1 stop
Delta Logo
9:55 am - 10:30 pm
ORD
-
GTF
13h 35m
2 stops
$324Delta
Sat, Jan 24 - Tue, Jan 27
Delta Logo
1:12 pm - 11:56 pm
GTF
-
ORD
9h 44m
2 stops
Delta Logo
11:15 am - 10:30 pm
ORD
-
GTF
12h 15m
2 stops
$329Delta
Sat, Jan 24 - Tue, Jan 27
Alaska Airlines Logo
4:57 pm - 4:33 pm
GTF
-
ORD
22h 36m
1 stop
Alaska Airlines Logo
5:29 pm - 4:17 pm
ORD
-
GTF
23h 48m
1 stop
$352Alaska Airlines
Tue, Feb 17 - Mon, Feb 23
Alaska Airlines Logo
5:59 pm - 11:50 pm
GTF
-
ORD
28h 51m
1 stop
Alaska Airlines Logo
8:00 am - 5:19 pm
ORD
-
GTF
10h 19m
1 stop
$354Alaska Airlines
Fri, Jan 30 - Mon, Feb 2
United Airlines Logo
2:29 pm - 11:59 pm
GTF
-
ORD
8h 30m
1 stop
United Airlines Logo
1:55 pm - 9:53 pm
ORD
-
GTF
8h 58m
1 stop
$363United Airlines
Sat, Feb 7 - Mon, Feb 9
Delta Logo
1:15 pm - 9:52 pm
GTF
-
ORD
7h 37m
1 stop
Delta Logo
6:30 am - 5:33 pm
ORD
-
GTF
12h 03m
2 stops
$379Delta
Tue, Feb 17 - Mon, Feb 23
United Airlines Logo
2:29 pm - 11:59 pm
GTF
-
ORD
8h 30m
1 stop
United Airlines Logo
1:55 pm - 9:53 pm
ORD
-
GTF
8h 58m
1 stop
$384United Airlines
Fri, Feb 6 - Mon, Feb 9
Alaska Airlines Logo
5:59 pm - 11:50 pm
GTF
-
ORD
28h 51m
1 stop
Alaska Airlines Logo
8:00 am - 5:19 pm
ORD
-
GTF
10h 19m
1 stop
$394Alaska Airlines
Fri, Jan 30 - Mon, Feb 2
Delta Logo
6:20 pm - 7:26 am
GTF
-
ORD
12h 06m
2 stops
Delta Logo
7:15 am - 12:23 pm
ORD
-
GTF
6h 08m
1 stop
$397Delta
Thu, Jun 25 - Wed, Jul 1

United Airlines flights from Great Falls to Chicago

Our best United Airlines deals on Great Falls to Chicago flight tickets
United Airlines
Jan 24
GTF2:29 pmGreat Falls
8h 30m
1 stop
ORD11:59 pmChicago O'Hare Intl
Jan 27
ORD3:59 pmChicago O'Hare Intl
6h 54m
1 stop
GTF9:53 pmGreat Falls
$318
United Airlines
Feb 7
GTF2:29 pmGreat Falls
8h 30m
1 stop
ORD11:59 pmChicago O'Hare Intl
Feb 9
ORD1:55 pmChicago O'Hare Intl
8h 58m
1 stop
GTF9:53 pmGreat Falls
$363
United Airlines
Feb 6
GTF2:29 pmGreat Falls
8h 30m
1 stop
ORD11:59 pmChicago O'Hare Intl
Feb 9
ORD1:55 pmChicago O'Hare Intl
8h 58m
1 stop
GTF9:53 pmGreat Falls
$384

Delta flights from Great Falls to Chicago

Our best Delta deals on Great Falls to Chicago flight tickets
Delta
Jan 24
GTF1:12 pmGreat Falls
7h 40m
1 stop
ORD9:52 pmChicago O'Hare Intl
Jan 27
ORD9:55 amChicago O'Hare Intl
13h 35m
2 stops
GTF10:30 pmGreat Falls
$324
Delta
Jan 24
GTF1:12 pmGreat Falls
9h 44m
2 stops
ORD11:56 pmChicago O'Hare Intl
Jan 27
ORD11:15 amChicago O'Hare Intl
12h 15m
2 stops
GTF10:30 pmGreat Falls
$329
Delta
Feb 17
GTF1:15 pmGreat Falls
7h 37m
1 stop
ORD9:52 pmChicago O'Hare Intl
Feb 23
ORD6:30 amChicago O'Hare Intl
12h 03m
2 stops
GTF5:33 pmGreat Falls
$379

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 January 12, 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

Sat 1/24

2:29 pm-11:59 pm

1 stop8h 30m

Chicago O'Hare Intl

Tue 1/27

3:59 pm-9:53 pm

1 stop6h 54m

$318

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 1/24

1:12 pm-9:52 pm

1 stop7h 40m

Chicago O'Hare Intl

Tue 1/27

9:55 am-10:30 pm

2 stops13h 35m

$324

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 1/24

1:12 pm-11:56 pm

2 stops9h 44m

Chicago O'Hare Intl

Tue 1/27

11:15 am-10:30 pm

2 stops12h 15m

$329

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 2/17

4:57 pm-4:33 pm

1 stop22h 36m

Chicago O'Hare Intl

Mon 2/23

5:29 pm-4:17 pm

1 stop23h 48m

$352

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 1/30

5:59 pm-11:50 pm

1 stop28h 51m

Chicago O'Hare Intl

Mon 2/2

8:00 am-5:19 pm

1 stop10h 19m

$354

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 2/7

2:29 pm-11:59 pm

1 stop8h 30m

Chicago O'Hare Intl

Mon 2/9

1:55 pm-9:53 pm

1 stop8h 58m

$363

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 2/17

1:15 pm-9:52 pm

1 stop7h 37m

Chicago O'Hare Intl

Mon 2/23

6:30 am-5:33 pm

2 stops12h 03m

$379

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 2/6

2:29 pm-11:59 pm

1 stop8h 30m

Chicago O'Hare Intl

Mon 2/9

1:55 pm-9:53 pm

1 stop8h 58m

$384

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 1/30

5:59 pm-11:50 pm

1 stop28h 51m

Chicago O'Hare Intl

Mon 2/2

8:00 am-5:19 pm

1 stop10h 19m

$394

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 6/25

6:20 pm-7:26 am

2 stops12h 06m

Chicago O'Hare Intl

Wed 7/1

7:15 am-12:23 pm

1 stop6h 08m

$397

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

Fastest flight time

3h 16m

Direct flights

Thu

Airports in Chicago

3 airports
The fastest flight from Great Falls to Chicago takes 3h 16m
Direct flights go from Great Falls to Chicago on Thursday. 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 16m.

  • 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
9,149 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
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.

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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