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Cheap flights from Chicago O'Hare Intl Airport to Great Falls from $282

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 8/8. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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.
Delta Logo
7:48 am - 12:28 pm
ORD
-
GTF
5h 40m
1 stop
Delta Logo
1:08 pm - 9:33 pm
GTF
-
ORD
7h 25m
1 stop
$328Delta
Tue, Aug 18 - Fri, Aug 28
Delta Logo
7:35 am - 12:38 pm
ORD
-
GTF
6h 03m
1 stop
Delta Logo
5:40 am - 11:55 am
GTF
-
ORD
5h 15m
1 stop
$328Delta
Sat, Oct 24 - Sat, Oct 31
United Airlines Logo
7:00 am - 1:29 pm
ORD
-
GTF
7h 29m
1 stop
United Airlines Logo
2:25 pm - 9:30 pm
GTF
-
ORD
6h 05m
1 stop
$328United Airlines
Wed, Sep 2 - Wed, Sep 9
Delta Logo
7:48 am - 12:28 pm
ORD
-
GTF
5h 40m
1 stop
Delta Logo
5:40 am - 11:59 am
GTF
-
ORD
5h 19m
1 stop
$328Delta
Fri, Aug 21 - Sat, Aug 29
Delta Logo
7:48 am - 12:28 pm
ORD
-
GTF
5h 40m
1 stop
Delta Logo
5:40 am - 11:59 am
GTF
-
ORD
5h 19m
1 stop
$328Delta
Tue, Aug 18 - Sat, Aug 22
Delta Logo
7:45 am - 12:35 pm
ORD
-
GTF
5h 50m
1 stop
Delta Logo
5:40 am - 11:55 am
GTF
-
ORD
5h 15m
1 stop
$328Delta
Sun, Sep 13 - Mon, Sep 21
Delta Logo
7:45 am - 12:35 pm
ORD
-
GTF
5h 50m
1 stop
Delta Logo
1:15 pm - 10:00 pm
GTF
-
ORD
7h 45m
1 stop
$328Delta
Sat, Sep 19 - Sat, Sep 26
Delta Logo
7:48 am - 12:28 pm
ORD
-
GTF
5h 40m
1 stop
Delta Logo
5:40 am - 11:59 am
GTF
-
ORD
5h 19m
1 stop
$328Delta
Tue, Aug 18 - Tue, Aug 25
Delta Logo
7:48 am - 12:28 pm
ORD
-
GTF
5h 40m
1 stop
Delta Logo
1:08 pm - 9:33 pm
GTF
-
ORD
7h 25m
1 stop
$328Delta
Tue, Aug 18 - Sat, Aug 29
United Airlines Logo
3:56 pm - 9:12 pm
ORD
-
GTF
6h 16m
1 stop
United Airlines Logo
2:25 pm - 9:29 pm
GTF
-
ORD
6h 04m
1 stop
$357United Airlines
Mon, Aug 24 - Mon, Aug 31

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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
Aug 18
ORD7:48 amChicago O'Hare Intl
5h 40m
1 stop
GTF12:28 pmGreat Falls
Aug 28
GTF1:08 pmGreat Falls
7h 25m
1 stop
ORD9:33 pmChicago O'Hare Intl
$328
Delta
Aug 18
ORD7:48 amChicago O'Hare Intl
5h 40m
1 stop
GTF12:28 pmGreat Falls
Aug 29
GTF5:40 amGreat Falls
8h 50m
2 stops
ORD3:30 pmChicago O'Hare Intl
$334
Delta
Oct 24
ORD9:59 amChicago O'Hare Intl
8h 48m
2 stops
GTF5:47 pmGreat Falls
Oct 31
GTF5:40 amGreat Falls
9h 46m
2 stops
ORD4:26 pmChicago O'Hare Intl
$339

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
Aug 24
ORD3:56 pmChicago O'Hare Intl
6h 16m
1 stop
GTF9:12 pmGreat Falls
Aug 31
GTF2:25 pmGreat Falls
6h 04m
1 stop
ORD9:29 pmChicago O'Hare Intl
$357
United Airlines
Aug 20
ORD5:55 amChicago O'Hare Intl
8h 34m
1 stop
GTF1:29 pmGreat Falls
Aug 26
GTF2:25 pmGreat Falls
6h 04m
1 stop
ORD9:29 pmChicago O'Hare Intl
$368
United Airlines
Aug 21
ORD3:56 pmChicago O'Hare Intl
6h 16m
1 stop
GTF9:12 pmGreat Falls
Aug 22
GTF2:25 pmGreat Falls
6h 27m
1 stop
ORD9:52 pmChicago O'Hare Intl
$370

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 July 30, 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

Cheapest round-trip

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 8/18

7:48 am-12:28 pm

1 stop5h 40m

Great Falls

Fri 8/28

1:08 pm-9:33 pm

1 stop7h 25m

$328

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 10/24

7:35 am-12:38 pm

1 stop6h 03m

Great Falls

Sat 10/31

5:40 am-11:55 am

1 stop5h 15m

$328

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 9/2

7:00 am-1:29 pm

1 stop7h 29m

Great Falls

Wed 9/9

2:25 pm-9:30 pm

1 stop6h 05m

$328
Quickest round-trip

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 8/21

7:48 am-12:28 pm

1 stop5h 40m

Great Falls

Sat 8/29

5:40 am-11:59 am

1 stop5h 19m

$328

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 8/18

7:48 am-12:28 pm

1 stop5h 40m

Great Falls

Sat 8/22

5:40 am-11:59 am

1 stop5h 19m

$328

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sun 9/13

7:45 am-12:35 pm

1 stop5h 50m

Great Falls

Mon 9/21

5:40 am-11:55 am

1 stop5h 15m

$328

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 9/19

7:45 am-12:35 pm

1 stop5h 50m

Great Falls

Sat 9/26

1:15 pm-10:00 pm

1 stop7h 45m

$328

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 8/18

7:48 am-12:28 pm

1 stop5h 40m

Great Falls

Tue 8/25

5:40 am-11:59 am

1 stop5h 19m

$328

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 8/18

7:48 am-12:28 pm

1 stop5h 40m

Great Falls

Sat 8/29

1:08 pm-9:33 pm

1 stop7h 25m

$328

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Mon 8/24

3:56 pm-9:12 pm

1 stop6h 16m

Great Falls

Mon 8/31

2:25 pm-9:29 pm

1 stop6h 04m

$357

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 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 February is another great option to travel to Great Falls, with average flight prices from Chicago O'Hare Intl Airport averaging around $0.

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 Airport to Great Falls flights?

There is only 1 cabin class available to choose from on Chicago O'Hare Intl Airport 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 61% 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

Best Price Found

$558

Fastest flight time

3h 46m

Direct flights

Sun

Airports in Great Falls

1 airport
The best flight deal from Chicago O'Hare Intl Airport to Great Falls found on momondo in the last 72 hours is $558
The fastest flight from Chicago O'Hare Intl Airport to Great Falls takes 3h 46m
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

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Great Falls

  • 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 46m 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
DeltaPriceFrom $318Free CancellationRating
7.8
8,487 reviews
Search Delta 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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