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Cheap flights from Chicago to Great Falls from $144

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 8/13. 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 Chicago to Great Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:45 am - 12:27 pm
ORD
-
GTF
5h 42m
1 stop
Delta Logo
1:07 pm - 9:50 pm
GTF
-
ORD
7h 43m
1 stop
$378Delta
Thu, May 21 - Sat, May 23
Delta Logo
5:00 pm - 10:26 pm
ORD
-
GTF
6h 26m
1 stop
Delta Logo
5:40 am - 4:51 pm
GTF
-
ORD
10h 11m
2 stops
$384Delta
Sat, May 23 - Mon, May 25
Delta Logo
1:44 pm - 10:26 pm
ORD
-
GTF
9h 42m
2 stops
Delta Logo
5:40 am - 2:57 pm
GTF
-
ORD
8h 17m
2 stops
$389Delta
Sat, May 23 - Mon, May 25
Delta Logo
7:45 am - 12:27 pm
ORD
-
GTF
5h 42m
1 stop
Delta Logo
1:07 pm - 9:50 pm
GTF
-
ORD
7h 43m
1 stop
$413Delta
Thu, May 21 - Sun, May 24
Delta Logo
7:45 am - 12:27 pm
ORD
-
GTF
5h 42m
1 stop
Delta Logo
5:40 am - 4:51 pm
GTF
-
ORD
10h 11m
2 stops
$419Delta
Thu, May 21 - Sun, May 24
Alaska Airlines Logo
7:49 pm - 6:12 pm
ORD
-
GTF
23h 23m
1 stop
Alaska Airlines Logo
6:52 pm - 6:20 am
GTF
-
ORD
10h 28m
1 stop
$433Alaska Airlines
Sat, May 16 - Sat, May 23
Delta Logo
11:09 am - 10:26 pm
ORD
-
GTF
12h 17m
2 stops
Delta Logo
1:07 pm - 9:50 pm
GTF
-
ORD
7h 43m
1 stop
$439Delta
Sat, May 16 - Sat, May 23
Alaska Airlines Logo
6:42 pm - 4:29 pm
ORD
-
GTF
22h 47m
1 stop
Alaska Airlines Logo
5:09 pm - 6:20 am
GTF
-
ORD
12h 11m
1 stop
$463Alaska Airlines
Fri, Jul 3 - Fri, Jul 10
Alaska Airlines Logo
5:42 pm - 4:29 pm
ORD
-
GTF
23h 47m
1 stop
Alaska Airlines Logo
5:09 pm - 8:02 pm
GTF
-
ORD
25h 53m
2 stops
$469Alaska Airlines
Fri, Jul 3 - Fri, Jul 10
Delta Logo
11:09 am - 10:26 pm
ORD
-
GTF
12h 17m
2 stops
Delta Logo
1:07 pm - 12:07 am
GTF
-
ORD
10h 00m
2 stops
$479Delta
Sat, May 16 - Sat, May 23

Alaska Airlines flights from Chicago to Great Falls

Our best Alaska Airlines deals on Chicago to Great Falls flight tickets
Alaska Airlines
May 16
ORD7:49 pmChicago O'Hare Intl
23h 23m
1 stop
GTF6:12 pmGreat Falls
May 23
GTF6:52 pmGreat Falls
10h 28m
1 stop
ORD6:20 amChicago O'Hare Intl
$433
Alaska Airlines
Jul 3
ORD6:42 pmChicago O'Hare Intl
22h 47m
1 stop
GTF4:29 pmGreat Falls
Jul 10
GTF5:09 pmGreat Falls
12h 11m
1 stop
ORD6:20 amChicago O'Hare Intl
$463
Alaska Airlines
Jul 3
ORD5:42 pmChicago O'Hare Intl
23h 47m
1 stop
GTF4:29 pmGreat Falls
Jul 10
GTF5:09 pmGreat Falls
25h 53m
2 stops
ORD8:02 pmChicago O'Hare Intl
$469

United Airlines flights from Chicago to Great Falls

Our best United Airlines deals on Chicago to Great Falls flight tickets
United Airlines
Jul 4
ORD9:00 amChicago O'Hare Intl
3h 46m
GTF11:46 amGreat Falls
Jul 11
GTF2:37 pmGreat Falls
6h 02m
1 stop
ORD9:39 pmChicago O'Hare Intl
$508
United Airlines
Jul 4
ORD7:05 amChicago O'Hare Intl
7h 36m
1 stop
GTF1:41 pmGreat Falls
Jul 11
GTF2:37 pmGreat Falls
6h 02m
1 stop
ORD9:39 pmChicago O'Hare Intl
$518
United Airlines
Jul 14
ORD9:00 amChicago O'Hare Intl
3h 46m
GTF11:46 amGreat Falls
Jul 29
GTF12:30 pmGreat Falls
3h 18m
ORD4:48 pmChicago O'Hare Intl
$547

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 May 10, 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

Cheapest round-trip
Quickest round-trip

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 5/21

7:45 am-12:27 pm

1 stop5h 42m

Great Falls

Sat 5/23

1:07 pm-9:50 pm

1 stop7h 43m

$378

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 5/23

5:00 pm-10:26 pm

1 stop6h 26m

Great Falls

Mon 5/25

5:40 am-4:51 pm

2 stops10h 11m

$384

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 5/23

1:44 pm-10:26 pm

2 stops9h 42m

Great Falls

Mon 5/25

5:40 am-2:57 pm

2 stops8h 17m

$389

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 5/21

7:45 am-12:27 pm

1 stop5h 42m

Great Falls

Sun 5/24

1:07 pm-9:50 pm

1 stop7h 43m

$413

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 5/21

7:45 am-12:27 pm

1 stop5h 42m

Great Falls

Sun 5/24

5:40 am-4:51 pm

2 stops10h 11m

$419

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 5/16

7:49 pm-6:12 pm

1 stop23h 23m

Great Falls

Sat 5/23

6:52 pm-6:20 am

1 stop10h 28m

$433

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 5/16

11:09 am-10:26 pm

2 stops12h 17m

Great Falls

Sat 5/23

1:07 pm-9:50 pm

1 stop7h 43m

$439

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 7/3

6:42 pm-4:29 pm

1 stop22h 47m

Great Falls

Fri 7/10

5:09 pm-6:20 am

1 stop12h 11m

$463

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 7/3

5:42 pm-4:29 pm

1 stop23h 47m

Great Falls

Fri 7/10

5:09 pm-8:02 pm

2 stops25h 53m

$469

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 5/16

11:09 am-10:26 pm

2 stops12h 17m

Great Falls

Sat 5/23

1:07 pm-12:07 am

2 stops10h 00m

$479

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 August is another great option to travel to Great Falls, with average flight prices from Chicago averaging around $169.

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

Can stopping save me money on Chicago to Great Falls flights?

You could potentially save up to 61% 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

3h 46m

Direct flights

Wed, Thu, Fri and Sun

Airports in Great Falls

1 airport
The fastest flight from Chicago to Great Falls takes 3h 46m
Direct flights go from Chicago to Great Falls on Wednesday, Thursday, Friday and Sunday. There are no airlines offering direct flights.
There is 1 airport in Great Falls. From Chicago there are direct flights to Great Falls (GTF).
Search flight deals

Frequently asked questions about flying from Chicago to Great Falls

  • 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 3h 46m.

  • 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 $275Free CancellationRating
7.4
9,694 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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