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Cheap flights from Great Falls to Chicago from $127

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 4/14. 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

Enter your travel dates to find the best prices.
Delta Logo
6:15 pm - 8:42 am
GTF
-
ORD
13h 27m2 stops
Delta Logo
7:15 am - 12:30 pm
ORD
-
GTF
6h 15m1 stop
$270Delta
Tue, Feb 10 - Fri, Feb 13
Alaska Airlines Logo
6:28 pm - 11:56 pm
GTF
-
ORD
28h 28m1 stop
Alaska Airlines Logo
7:00 am - 5:48 pm
ORD
-
GTF
11h 48m1 stop
$352Alaska Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
2:35 pm - 9:19 pm
GTF
-
ORD
5h 44m1 stop
United Airlines Logo
2:15 pm - 9:43 pm
ORD
-
GTF
8h 28m1 stop
$373United Airlines
Fri, Dec 26 - Sat, Jan 10
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
$452Alaska Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
2:35 pm - 11:59 pm
GTF
-
ORD
8h 24m1 stop
United Airlines Logo
2:15 pm - 9:43 pm
ORD
-
GTF
8h 28m1 stop
$467United Airlines
Sat, Dec 27 - Sat, Jan 10
United Airlines Logo
6:15 am - 1:19 pm
GTF
-
ORD
6h 04m1 stop
United Airlines Logo
2:31 pm - 10:46 pm
ORD
-
GTF
9h 15m1 stop
$473United Airlines
Thu, Dec 25 - Thu, Jan 1
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
$524United Airlines
Fri, Dec 26 - Fri, Jan 2
United Airlines Logo
2:35 pm - 11:00 pm
GTF
-
ORD
7h 25m1 stop
United Airlines Logo
9:17 am - 9:43 pm
ORD
-
GTF
13h 26m2 stops
$568United Airlines
Fri, Dec 26 - Sat, Jan 10
Delta Logo
5:30 am - 5:19 pm
GTF
-
MDW
10h 49m2 stops
Delta Logo
9:29 am - 5:38 pm
MDW
-
GTF
9h 09m2 stops
$1,680Delta
Fri, Dec 26 - Mon, Dec 29
Delta Logo
5:30 am - 5:19 pm
GTF
-
MDW
10h 49m2 stops
Delta Logo
9:29 am - 5:38 pm
MDW
-
GTF
9h 09m2 stops
$1,970Delta
Mon, Dec 22 - Fri, Dec 26

United Airlines flights from Great Falls to Chicago

Our best United Airlines deals on Great Falls to Chicago flight tickets
United Airlines
Dec 26
GTF2:35 pmGreat Falls
5h 44m
1 stop
ORD9:19 pmChicago O'Hare Intl
Jan 10
ORD2:15 pmChicago O'Hare Intl
8h 28m
1 stop
GTF9:43 pmGreat Falls
$373
Find similar
United Airlines
Dec 27
GTF2:35 pmGreat Falls
8h 24m
1 stop
ORD11:59 pmChicago O'Hare Intl
Jan 10
ORD2:15 pmChicago O'Hare Intl
8h 28m
1 stop
GTF9:43 pmGreat Falls
$467
Find similar
United Airlines
Dec 25
GTF6:15 amGreat Falls
6h 04m
1 stop
ORD1:19 pmChicago O'Hare Intl
Jan 1
ORD2:31 pmChicago O'Hare Intl
9h 15m
1 stop
GTF10:46 pmGreat Falls
$473
Find similar

Delta flights from Great Falls to Chicago

Our best Delta deals on Great Falls to Chicago flight tickets
Delta
Dec 26
GTF5:30 amGreat Falls
8h 51m
2 stops
ORD3:21 pmChicago O'Hare Intl
Jan 10
ORD11:15 amChicago O'Hare Intl
12h 15m
2 stops
GTF10:30 pmGreat Falls
$959
Find similar
Delta
Dec 26
GTF5:30 amGreat Falls
8h 51m
2 stops
ORD3:21 pmChicago O'Hare Intl
Dec 29
ORD6:35 amChicago O'Hare Intl
12h 03m
2 stops
GTF5:38 pmGreat Falls
$1,249
Find similar
Delta
Dec 15
GTF1:12 pmGreat Falls
9h 35m
2 stops
MDW11:47 pmChicago Midway
Jan 5
MDW1:28 pmChicago Midway
10h 02m
2 stops
GTF10:30 pmGreat Falls
$1,470
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 9, 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

Tue 2/10

6:15 pm-8:42 am

2 stops13h 27m

Chicago O'Hare Intl

Fri 2/13

7:15 am-12:30 pm

1 stop6h 15m

$270

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 2/14

6:28 pm-11:56 pm

1 stop28h 28m

Chicago O'Hare Intl

Wed 2/18

7:00 am-5:48 pm

1 stop11h 48m

$352

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 12/26

2:35 pm-9:19 pm

1 stop5h 44m

Chicago O'Hare Intl

Sat 1/10

2:15 pm-9:43 pm

1 stop8h 28m

$373

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

$452

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 12/27

2:35 pm-11:59 pm

1 stop8h 24m

Chicago O'Hare Intl

Sat 1/10

2:15 pm-9:43 pm

1 stop8h 28m

$467

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 12/25

6:15 am-1:19 pm

1 stop6h 04m

Chicago O'Hare Intl

Thu 1/1

2:31 pm-10:46 pm

1 stop9h 15m

$473

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 12/26

2:35 pm-11:00 pm

1 stop7h 25m

Chicago O'Hare Intl

Fri 1/2

7:10 am-1:39 pm

1 stop7h 29m

$524

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 12/26

2:35 pm-11:00 pm

1 stop7h 25m

Chicago O'Hare Intl

Sat 1/10

9:17 am-9:43 pm

2 stops13h 26m

$568

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

Fri 12/26

5:30 am-5:19 pm

2 stops10h 49m

Chicago Midway

Mon 12/29

9:29 am-5:38 pm

2 stops9h 09m

$1,680

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

Mon 12/22

5:30 am-5:19 pm

2 stops10h 49m

Chicago Midway

Fri 12/26

9:29 am-5:38 pm

2 stops9h 09m

$1,970

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 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 42% 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 5h 44m.

  • 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
9,089 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
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