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Cheap flights from Chicago O'Hare Intl Airport to Great Falls from $123

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 O'Hare Intl Airport to Great Falls departing on 4/15. 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 O'Hare Intl Airport to Great Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
6:00 am - 5:35 pm
ORD
-
GTF
12h 35m
1 stop
Alaska Airlines Logo
6:15 pm - 6:40 am
GTF
-
ORD
11h 25m
1 stop
$252Alaska Airlines
Wed, Apr 22 - Fri, Apr 24
United Airlines Logo
2:35 pm - 9:17 pm
ORD
-
GTF
7h 42m
1 stop
United Airlines Logo
2:30 pm - 11:28 pm
GTF
-
ORD
7h 58m
1 stop
$286United Airlines
Fri, Apr 3 - Mon, Apr 6
Delta Logo
5:00 pm - 10:26 pm
ORD
-
GTF
6h 26m
1 stop
Delta Logo
1:07 pm - 9:50 pm
GTF
-
ORD
7h 43m
1 stop
$288Delta
Sat, May 23 - Wed, May 27
Delta Logo
8:42 am - 5:39 pm
ORD
-
GTF
9h 57m
2 stops
Delta Logo
5:40 am - 11:52 am
GTF
-
ORD
5h 12m
1 stop
$294Delta
Tue, May 26 - Sun, May 31
Delta Logo
8:42 am - 5:39 pm
ORD
-
GTF
9h 57m
2 stops
Delta Logo
5:40 am - 11:52 am
GTF
-
ORD
5h 12m
1 stop
$314Delta
Tue, May 26 - Sun, May 31
United Airlines Logo
2:35 pm - 9:17 pm
ORD
-
GTF
7h 42m
1 stop
United Airlines Logo
2:30 pm - 11:28 pm
GTF
-
ORD
7h 58m
1 stop
$316United Airlines
Thu, Apr 2 - Sun, Apr 5
United Airlines Logo
8:40 am - 11:23 am
ORD
-
GTF
3h 43mnonstop
United Airlines Logo
2:37 pm - 9:39 pm
GTF
-
ORD
6h 02m
1 stop
$328United Airlines
Sat, May 23 - Wed, May 27
United Airlines Logo
2:35 pm - 9:17 pm
ORD
-
GTF
7h 42m
1 stop
United Airlines Logo
2:30 pm - 10:54 pm
GTF
-
ORD
7h 24m
1 stop
$336United Airlines
Thu, Apr 2 - Mon, Apr 6
Delta Logo
9:50 am - 10:29 pm
ORD
-
GTF
13h 39m
2 stops
Delta Logo
1:09 pm - 9:18 pm
GTF
-
ORD
7h 09m
1 stop
$343Delta
Tue, Apr 14 - Tue, Apr 21
Alaska Airlines Logo
8:50 am - 5:35 pm
ORD
-
GTF
33h 45m
2 stops
Alaska Airlines Logo
6:15 pm - 6:40 am
GTF
-
ORD
11h 25m
1 stop
$345Alaska Airlines
Wed, Apr 22 - Fri, Apr 24

Delta flights from Chicago O'Hare Intl Airport to Great Falls

Our best Delta deals on Chicago O'Hare Intl Airport to Great Falls flight tickets
Delta
May 23
ORD5:00 pmChicago O'Hare Intl
6h 26m
1 stop
GTF10:26 pmGreat Falls
May 27
GTF1:07 pmGreat Falls
7h 43m
1 stop
ORD9:50 pmChicago O'Hare Intl
$288
Delta
May 26
ORD8:42 amChicago O'Hare Intl
9h 57m
2 stops
GTF5:39 pmGreat Falls
May 31
GTF5:40 amGreat Falls
5h 12m
1 stop
ORD11:52 amChicago O'Hare Intl
$294
Delta
May 26
ORD8:42 amChicago O'Hare Intl
9h 57m
2 stops
GTF5:39 pmGreat Falls
May 31
GTF5:40 amGreat Falls
5h 12m
1 stop
ORD11:52 amChicago O'Hare Intl
$314

United Airlines flights from Chicago O'Hare Intl Airport to Great Falls

Our best United Airlines deals on Chicago O'Hare Intl Airport to Great Falls flight tickets
United Airlines
Apr 3
ORD2:35 pmChicago O'Hare Intl
7h 42m
1 stop
GTF9:17 pmGreat Falls
Apr 6
GTF2:30 pmGreat Falls
7h 58m
1 stop
ORD11:28 pmChicago O'Hare Intl
$286
United Airlines
Apr 2
ORD2:35 pmChicago O'Hare Intl
7h 42m
1 stop
GTF9:17 pmGreat Falls
Apr 5
GTF2:30 pmGreat Falls
7h 58m
1 stop
ORD11:28 pmChicago O'Hare Intl
$316
United Airlines
May 23
ORD8:40 amChicago O'Hare Intl
3h 43m
GTF11:23 amGreat Falls
May 27
GTF2:37 pmGreat Falls
6h 02m
1 stop
ORD9:39 pmChicago O'Hare Intl
$328

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 March 4, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport 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 4/22

6:00 am-5:35 pm

1 stop12h 35m

Great Falls

Fri 4/24

6:15 pm-6:40 am

1 stop11h 25m

$252

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 4/3

2:35 pm-9:17 pm

1 stop7h 42m

Great Falls

Mon 4/6

2:30 pm-11:28 pm

1 stop7h 58m

$286

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 5/23

5:00 pm-10:26 pm

1 stop6h 26m

Great Falls

Wed 5/27

1:07 pm-9:50 pm

1 stop7h 43m

$288

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 5/26

8:42 am-5:39 pm

2 stops9h 57m

Great Falls

Sun 5/31

5:40 am-11:52 am

1 stop5h 12m

$294

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 5/26

8:42 am-5:39 pm

2 stops9h 57m

Great Falls

Sun 5/31

5:40 am-11:52 am

1 stop5h 12m

$314

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 4/2

2:35 pm-9:17 pm

1 stop7h 42m

Great Falls

Sun 4/5

2:30 pm-11:28 pm

1 stop7h 58m

$316

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 5/23

8:40 am-11:23 am

Nonstop3h 43m

Great Falls

Wed 5/27

2:37 pm-9:39 pm

1 stop6h 02m

$328

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 4/2

2:35 pm-9:17 pm

1 stop7h 42m

Great Falls

Mon 4/6

2:30 pm-10:54 pm

1 stop7h 24m

$336

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 4/14

9:50 am-10:29 pm

2 stops13h 39m

Great Falls

Tue 4/21

1:09 pm-9:18 pm

1 stop7h 09m

$343

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 4/22

8:50 am-5:35 pm

2 stops33h 45m

Great Falls

Fri 4/24

6:15 pm-6:40 am

1 stop11h 25m

$345

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Great Falls from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 cheapest month to fly to Great Falls?

The month of September is another great option to travel to Great Falls, with average flight prices from Chicago O'Hare Intl Airport averaging around $362.

What is the cheapest Chicago O'Hare Intl to Great Falls flight route?

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

What cabin class options are available on Chicago O'Hare Intl to Great Falls flights?

There are 2 cabin classes available to choose from on Chicago O'Hare Intl 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 O'Hare Intl Airport to Great Falls flights?

You could potentially save up to 49% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Great Falls flight.

When to book flights from Chicago O'Hare Intl Airport to Great Falls

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

Cheap Chicago O'Hare Intl Airport to Great Falls (ORD to GTF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Great Falls

Fastest flight time

3h 43m

Direct flights

Sun

Airports in Great Falls

1 airport
The fastest flight from Chicago O'Hare Intl Airport to Great Falls takes 3h 43m
Direct flights go from Chicago O'Hare Intl Airport to Great Falls on Sunday. There are no airlines offering direct flights.
There is 1 airport in Great Falls. From Chicago O'Hare Intl Airport there are direct flights to Great Falls (GTF).
Search flight deals

  • How far is Chicago O'Hare Intl to Great Falls by plane?

    There are 1203.7 mi between Chicago O'Hare Intl and Great Falls. 3h 43m is a normal flight duration for this route.

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

    Prices for flights from Chicago O'Hare Intl Airport to Great Falls Airport were last updated today.

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

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Great Falls Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Great Falls Airport.

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

    The necessary travel and health documents for your Great Falls Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Chicago O'Hare Intl Airport to Great Falls?

  • What is the most popular airline from Chicago O'Hare Intl Airport to Great Falls?

Best airlines flying from Chicago O'Hare Intl Airport to Great Falls

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Great Falls with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $328Free CancellationRating
7.4
9,382 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?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Great Falls from Chicago.

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

Flights from Chicago to Great Falls 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 Chicago to Great Falls?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Great Falls from Chicago.

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

If you are not ready to book a flight from Chicago to Great Falls now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Great Falls and let you know when they change.

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