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Cheap flights from Chicago to Great Falls from $122

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Great Falls departing on 5/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Chicago to Great Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:20 am - 12:24 pm
ORD
-
GTF
6h 04m
1 stop
Delta Logo
1:05 pm - 9:34 pm
GTF
-
ORD
7h 29m
1 stop
$244Delta
Wed, Apr 1 - Wed, Apr 8
Delta Logo
1:57 pm - 10:30 pm
ORD
-
GTF
9h 33m
2 stops
Delta Logo
5:30 am - 12:18 pm
GTF
-
ORD
5h 48m
1 stop
$250Delta
Wed, Apr 1 - Wed, Apr 8
United Airlines Logo
2:20 pm - 9:18 pm
ORD
-
GTF
7h 58m
1 stop
United Airlines Logo
2:35 pm - 9:23 pm
GTF
-
ORD
5h 48m
1 stop
$258United Airlines
Fri, May 1 - Sat, May 9
Delta Logo
1:57 pm - 10:30 pm
ORD
-
GTF
9h 33m
2 stops
Delta Logo
6:22 pm - 8:30 am
GTF
-
ORD
13h 08m
2 stops
$317Delta
Wed, Apr 1 - Wed, Apr 8
Alaska Airlines Logo
7:00 am - 5:48 pm
ORD
-
GTF
11h 48m
1 stop
Alaska Airlines Logo
4:57 pm - 2:11 pm
GTF
-
ORD
20h 14m
1 stop
$335Alaska Airlines
Wed, Mar 4 - Fri, Mar 6
Delta Logo
7:15 am - 12:30 pm
ORD
-
GTF
6h 15m
1 stop
Delta Logo
1:15 pm - 9:52 pm
GTF
-
ORD
7h 37m
1 stop
$346Delta
Mon, Feb 23 - Sat, Feb 28
Delta Logo
2:05 pm - 10:29 pm
ORD
-
GTF
9h 24m
2 stops
Delta Logo
5:20 am - 12:19 pm
GTF
-
ORD
5h 59m
1 stop
$352Delta
Wed, Mar 4 - Fri, Mar 6
Delta Logo
7:15 am - 12:23 pm
ORD
-
GTF
6h 08m
1 stop
Delta Logo
1:10 pm - 9:58 pm
GTF
-
ORD
7h 48m
1 stop
$353Delta
Fri, May 29 - Tue, Jun 2
Alaska Airlines Logo
3:52 pm - 5:35 pm
ORD
-
GTF
26h 43m
2 stops
Alaska Airlines Logo
6:15 pm - 6:40 am
GTF
-
ORD
11h 25m
1 stop
$358Alaska Airlines
Fri, May 1 - Sat, May 9
United Airlines Logo
2:33 pm - 9:19 pm
ORD
-
GTF
7h 46m
1 stop
United Airlines Logo
2:29 pm - 9:39 pm
GTF
-
ORD
6h 10m
1 stop
$368United Airlines
Fri, May 29 - Tue, Jun 2

Delta flights from Chicago to Great Falls

Our best Delta deals on Chicago to Great Falls flight tickets
Delta
Apr 1
ORD7:20 amChicago O'Hare Intl
6h 04m
1 stop
GTF12:24 pmGreat Falls
Apr 8
GTF1:05 pmGreat Falls
7h 29m
1 stop
ORD9:34 pmChicago O'Hare Intl
$244
Delta
Apr 1
ORD1:57 pmChicago O'Hare Intl
9h 33m
2 stops
GTF10:30 pmGreat Falls
Apr 8
GTF5:30 amGreat Falls
5h 48m
1 stop
ORD12:18 pmChicago O'Hare Intl
$250
Delta
Apr 1
ORD1:57 pmChicago O'Hare Intl
9h 33m
2 stops
GTF10:30 pmGreat Falls
Apr 8
GTF6:22 pmGreat Falls
13h 08m
2 stops
ORD8:30 amChicago O'Hare Intl
$317

Alaska Airlines flights from Chicago to Great Falls

Our best Alaska Airlines deals on Chicago to Great Falls flight tickets
Alaska Airlines
Mar 4
ORD7:00 amChicago O'Hare Intl
11h 48m
1 stop
GTF5:48 pmGreat Falls
Mar 6
GTF4:57 pmGreat Falls
20h 14m
1 stop
ORD2:11 pmChicago O'Hare Intl
$335
Alaska Airlines
May 1
ORD3:52 pmChicago O'Hare Intl
26h 43m
2 stops
GTF5:35 pmGreat Falls
May 9
GTF6:15 pmGreat Falls
11h 25m
1 stop
ORD6:40 amChicago O'Hare Intl
$358
Alaska Airlines
Feb 11
ORD3:35 pmChicago O'Hare Intl
25h 42m
1 stop
GTF4:17 pmGreat Falls
Feb 15
GTF4:57 pmGreat Falls
18h 04m
1 stop
ORD12:01 pmChicago O'Hare Intl
$438

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Great Falls 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 29, 2026.
Use the filters below to find and compare flights from Chicago to Great Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 4/1

7:20 am-12:24 pm

1 stop6h 04m

Great Falls

Wed 4/8

1:05 pm-9:34 pm

1 stop7h 29m

$244

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 4/1

1:57 pm-10:30 pm

2 stops9h 33m

Great Falls

Wed 4/8

5:30 am-12:18 pm

1 stop5h 48m

$250

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 5/1

2:20 pm-9:18 pm

1 stop7h 58m

Great Falls

Sat 5/9

2:35 pm-9:23 pm

1 stop5h 48m

$258

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 4/1

1:57 pm-10:30 pm

2 stops9h 33m

Great Falls

Wed 4/8

6:22 pm-8:30 am

2 stops13h 08m

$317

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 3/4

7:00 am-5:48 pm

1 stop11h 48m

Great Falls

Fri 3/6

4:57 pm-2:11 pm

1 stop20h 14m

$335

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Mon 2/23

7:15 am-12:30 pm

1 stop6h 15m

Great Falls

Sat 2/28

1:15 pm-9:52 pm

1 stop7h 37m

$346

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 3/4

2:05 pm-10:29 pm

2 stops9h 24m

Great Falls

Fri 3/6

5:20 am-12:19 pm

1 stop5h 59m

$352

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 5/29

7:15 am-12:23 pm

1 stop6h 08m

Great Falls

Tue 6/2

1:10 pm-9:58 pm

1 stop7h 48m

$353

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 5/1

3:52 pm-5:35 pm

2 stops26h 43m

Great Falls

Sat 5/9

6:15 pm-6:40 am

1 stop11h 25m

$358

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 5/29

2:33 pm-9:19 pm

1 stop7h 46m

Great Falls

Tue 6/2

2:29 pm-9:39 pm

1 stop6h 10m

$368

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 Chicago to Great Falls

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 typical price of a round-trip flight between Chicago and Great Falls?

What is the cheapest month to fly to Great Falls?

The month of November is another great option to travel to Great Falls, with average flight prices from Chicago averaging around $274.

What is the cheapest Chicago to Great Falls flight route?

Fly from Chicago O'Hare Intl to Great Falls for the best Chicago - Great Falls flight prices

What cabin class options are available on Chicago to Great Falls flights?

There are 2 cabin classes available to choose from on Chicago to Great Falls 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 Chicago to Great Falls flights?

You could potentially save up to 41% on your flight if you consider stops on a Chicago to Great Falls flight.

When to book flights from Chicago to Great Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Great Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Great Falls (CHI to GTF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Great Falls

Fastest flight time

6h 03m

Direct flights

None
The fastest flight from Chicago to Great Falls takes 6h 03m
There are no direct flights from Chicago to Great Falls. There are no popular flight routes from Chicago to Great Falls.
Search flight deals

  • How far is Chicago to Great Falls by plane?

    There are 1219.6 mi between Chicago and Great Falls. In terms of flight time, this usually takes a little over 6h 03m.

  • When did momondo last update prices for flights from Chicago to Great Falls Airport?

    Prices for flights from Chicago to Great Falls Airport are updated daily.

  • How many operators does momondo search for flights from Chicago to Great Falls Airport?

  • How old do you have to be to fly from Chicago to Great Falls Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Great Falls Airport.

  • What documentation or ID do you need to fly to Great Falls Airport?

    The required travel and health documents for your Great Falls Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Great Falls Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Chicago to Great Falls?

  • What is the most popular airline from Chicago to Great Falls?

Best airlines flying from Chicago to Great Falls

Compare and see reviews for airlines that fly from Chicago to Great Falls with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $328Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights

Traveling to a place near Great Falls?

Book flights to Great Falls if you plan to visit one of these locations
Shelby

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Great Falls?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Great Falls for you.

Can I find flights from Chicago to Great Falls with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Great Falls from Chicago with this policy.

How can momondo help me find flights from Chicago to Great Falls?

momondo provides multiple filters to help you find the best flight to Great Falls from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Chicago to Great Falls right now. Can momondo alert me if prices change?

Price alerts on flights to Great Falls from Chicago 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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