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Cheap flights from Great Falls to Chicago from $108

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 3/19. 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
5:40 am - 11:52 am
GTF
-
ORD
5h 12m
1 stop
Delta Logo
7:45 am - 12:27 pm
ORD
-
GTF
5h 42m
1 stop
$242Delta
Sat, May 23 - Sun, May 24
United Airlines Logo
2:30 pm - 11:52 pm
GTF
-
ORD
8h 22m
1 stop
United Airlines Logo
2:01 pm - 9:11 pm
ORD
-
GTF
8h 10m
1 stop
$258United Airlines
Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
12:30 pm - 4:46 pm
GTF
-
ORD
3h 16mnonstop
United Airlines Logo
6:00 am - 1:33 pm
ORD
-
GTF
8h 33m
1 stop
$328United Airlines
Sat, May 23 - Sun, May 24
Delta Logo
1:05 pm - 9:34 pm
GTF
-
ORD
7h 29m
1 stop
Delta Logo
9:50 am - 10:30 pm
ORD
-
GTF
13h 40m
2 stops
$353Delta
Tue, Mar 10 - Tue, Mar 17
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
$367Delta
Fri, May 22 - Mon, May 25
Multiple Airlines Logo
11:42 am - 5:50 am
GTF
-
ORD
17h 08m
1 stop
Multiple Airlines Logo
7:21 pm - 8:41 pm
ORD
-
GTF
50h 20m
2 stops
$371Multiple Airlines
Fri, Apr 17 - Fri, Apr 24
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
$393Delta
Fri, May 22 - Sun, May 24
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
$397Delta
Sat, May 23 - Tue, May 26
Delta Logo
6:20 pm - 8:25 am
GTF
-
ORD
13h 05m
2 stops
Delta Logo
7:45 am - 12:27 pm
ORD
-
GTF
5h 42m
1 stop
$399Delta
Thu, May 21 - Mon, May 25
United Airlines Logo
2:25 pm - 9:29 pm
GTF
-
ORD
6h 04m
1 stop
United Airlines Logo
4:05 pm - 9:33 pm
ORD
-
GTF
6h 28m
1 stop
$400United Airlines
Tue, Feb 24 - Sat, Feb 28

United Airlines flights from Great Falls to Chicago

Our best United Airlines deals on Great Falls to Chicago flight tickets
United Airlines
Mar 10
GTF2:30 pmGreat Falls
8h 22m
1 stop
ORD11:52 pmChicago O'Hare Intl
Mar 17
ORD2:01 pmChicago O'Hare Intl
8h 10m
1 stop
GTF9:11 pmGreat Falls
$258
United Airlines
May 23
GTF12:30 pmGreat Falls
3h 16m
ORD4:46 pmChicago O'Hare Intl
May 24
ORD6:00 amChicago O'Hare Intl
8h 33m
1 stop
GTF1:33 pmGreat Falls
$328
United Airlines
Feb 24
GTF2:25 pmGreat Falls
6h 04m
1 stop
ORD9:29 pmChicago O'Hare Intl
Feb 28
ORD4:05 pmChicago O'Hare Intl
6h 28m
1 stop
GTF9:33 pmGreat Falls
$400

Delta flights from Great Falls to Chicago

Our best Delta deals on Great Falls to Chicago flight tickets
Delta
May 23
GTF5:40 amGreat Falls
5h 12m
1 stop
ORD11:52 amChicago O'Hare Intl
May 24
ORD7:45 amChicago O'Hare Intl
5h 42m
1 stop
GTF12:27 pmGreat Falls
$242
Delta
Mar 10
GTF1:05 pmGreat Falls
7h 29m
1 stop
ORD9:34 pmChicago O'Hare Intl
Mar 17
ORD9:50 amChicago O'Hare Intl
13h 40m
2 stops
GTF10:30 pmGreat Falls
$353
Delta
May 22
GTF1:07 pmGreat Falls
7h 43m
1 stop
ORD9:50 pmChicago O'Hare Intl
May 25
ORD7:45 amChicago O'Hare Intl
5h 42m
1 stop
GTF12:27 pmGreat Falls
$367

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 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 5/23

5:40 am-11:52 am

1 stop5h 12m

Chicago O'Hare Intl

Sun 5/24

7:45 am-12:27 pm

1 stop5h 42m

$242

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 3/10

2:30 pm-11:52 pm

1 stop8h 22m

Chicago O'Hare Intl

Tue 3/17

2:01 pm-9:11 pm

1 stop8h 10m

$258

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 5/23

12:30 pm-4:46 pm

Nonstop3h 16m

Chicago O'Hare Intl

Sun 5/24

6:00 am-1:33 pm

1 stop8h 33m

$328

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 3/10

1:05 pm-9:34 pm

1 stop7h 29m

Chicago O'Hare Intl

Tue 3/17

9:50 am-10:30 pm

2 stops13h 40m

$353

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 5/22

1:07 pm-9:50 pm

1 stop7h 43m

Chicago O'Hare Intl

Mon 5/25

7:45 am-12:27 pm

1 stop5h 42m

$367

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 4/17

11:42 am-5:50 am

1 stop17h 08m

Chicago O'Hare Intl

Fri 4/24

7:21 pm-8:41 pm

2 stops50h 20m

$371

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 5/22

1:07 pm-9:50 pm

1 stop7h 43m

Chicago O'Hare Intl

Sun 5/24

7:45 am-12:27 pm

1 stop5h 42m

$393

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 5/23

1:07 pm-9:50 pm

1 stop7h 43m

Chicago O'Hare Intl

Tue 5/26

7:45 am-12:27 pm

1 stop5h 42m

$397

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 5/21

6:20 pm-8:25 am

2 stops13h 05m

Chicago O'Hare Intl

Mon 5/25

7:45 am-12:27 pm

1 stop5h 42m

$399

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 2/24

2:25 pm-9:29 pm

1 stop6h 04m

Chicago O'Hare Intl

Sat 2/28

4:05 pm-9:33 pm

1 stop6h 28m

$400

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

$551

Fastest flight time

3h 16m

Direct flights

None
The best flight deal from Great Falls to Chicago found on momondo in the last 72 hours is $551
The fastest flight from Great Falls to Chicago takes 3h 16m
There are no direct flights from Great Falls to Chicago. Popular non-direct route for this connection is Great Falls Airport - Chicago O'Hare Intl Airport.
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
9,276 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