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Cheap flights from Chicago to Great Falls from $185

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 12/7. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:45 am - 5:28 pmORD-GTF
11h 43m2 stops
Delta Logo
5:30 am - 1:16 pmGTF-ORD
6h 46m1 stop
$324Delta
Find Deal
Sat, Dec 13 - Sat, Jan 10
Delta Logo
7:20 am - 12:31 pmORD-GTF
6h 11m1 stop
Delta Logo
5:30 am - 12:40 pmGTF-ORD
6h 10m1 stop
$333Delta
Find Deal
Fri, Dec 5 - Thu, Dec 11
Delta Logo
5:30 am - 5:28 pmORD-GTF
12h 58m2 stops
Delta Logo
5:30 am - 12:40 pmGTF-ORD
6h 10m1 stop
$339Delta
Find Deal
Fri, Dec 5 - Thu, Dec 11
Delta Logo
5:29 pm - 11:22 pmORD-GTF
6h 53m1 stop
Delta Logo
5:30 am - 1:16 pmGTF-ORD
6h 46m1 stop
$353Delta
Find Deal
Sat, Dec 13 - Sat, Jan 10
Hawaiian Airlines Logo
7:00 am - 3:20 pmORD-GTF
9h 20m1 stop
Hawaiian Airlines Logo
4:00 pm - 11:58 pmGTF-ORD
6h 58m1 stop
$354Hawaiian Airlines
Find Deal
Fri, Apr 17 - Mon, Apr 20
Delta Logo
1:35 pm - 10:44 pmORD-GTF
10h 09m2 stops
Delta Logo
1:10 pm - 9:58 pmGTF-ORD
7h 48m1 stop
$433Delta
Find Deal
Fri, Apr 17 - Mon, Apr 20
United Airlines Logo
9:10 pm - 1:27 pmORD-GTF
17h 17m2 stops
United Airlines Logo
2:30 pm - 9:13 pmGTF-ORD
5h 43m1 stop
$451United Airlines
Find Deal
Fri, Apr 17 - Mon, Apr 20
United Airlines Logo
6:15 pm - 9:32 pmORD-GTF
28h 17m1 stop
United Airlines Logo
2:29 pm - 11:59 pmGTF-ORD
8h 30m1 stop
$477United Airlines
Find Deal
Sat, Dec 13 - Sat, Jan 10
Delta Logo
7:00 am - 5:39 pmORD-GTF
11h 39m2 stops
Delta Logo
6:20 pm - 8:34 amGTF-ORD
13h 14m2 stops
$499Delta
Find Deal
Fri, Apr 17 - Mon, Apr 20
United Airlines Logo
8:08 pm - 1:39 pmORD-GTF
18h 31m1 stop
United Airlines Logo
2:35 pm - 11:00 pmGTF-ORD
7h 25m1 stop
$504United Airlines
Find Deal
Wed, Dec 24 - Fri, Dec 26

Delta flights from Chicago to Great Falls

Our best Delta deals on Chicago to Great Falls flight tickets
Delta
Dec 5
ORD7:20 amChicago O'Hare Intl
6h 11m
1 stop
GTF12:31 pmGreat Falls
Dec 9
GTF1:12 pmGreat Falls
7h 09m
1 stop
ORD9:21 pmChicago O'Hare Intl
$277
Find similar
Delta
Dec 5
ORD5:30 amChicago O'Hare Intl
12h 58m
2 stops
GTF5:28 pmGreat Falls
Dec 9
GTF1:12 pmGreat Falls
7h 09m
1 stop
ORD9:21 pmChicago O'Hare Intl
$283
Find similar
Delta
Dec 5
ORD5:30 amChicago O'Hare Intl
12h 58m
2 stops
GTF5:28 pmGreat Falls
Dec 9
GTF1:12 pmGreat Falls
8h 31m
2 stops
ORD10:43 pmChicago O'Hare Intl
$288
Find similar

United Airlines flights from Chicago to Great Falls

Our best United Airlines deals on Chicago to Great Falls flight tickets
United Airlines
Apr 17
ORD5:50 pmChicago O'Hare Intl
20h 37m
2 stops
GTF1:27 pmGreat Falls
Apr 20
GTF2:30 pmGreat Falls
8h 27m
1 stop
ORD11:57 pmChicago O'Hare Intl
$451
Find similar
United Airlines
Dec 13
ORD6:15 pmChicago O'Hare Intl
28h 17m
1 stop
GTF9:32 pmGreat Falls
Jan 10
GTF2:29 pmGreat Falls
8h 30m
1 stop
ORD11:59 pmChicago O'Hare Intl
$477
Find similar
United Airlines
Dec 24
ORD8:08 pmChicago O'Hare Intl
18h 31m
1 stop
GTF1:39 pmGreat Falls
Dec 26
GTF2:35 pmGreat Falls
7h 25m
1 stop
ORD11:00 pmChicago O'Hare Intl
$504
Find similar

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 November 13, 2025.
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

Sat 12/13

6:45 am-5:28 pm

2 stops11h 43m

Great Falls

Sat 1/10

5:30 am-1:16 pm

1 stop6h 46m

$324

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 12/5

7:20 am-12:31 pm

1 stop6h 11m

Great Falls

Thu 12/11

5:30 am-12:40 pm

1 stop6h 10m

$333

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 12/5

5:30 am-5:28 pm

2 stops12h 58m

Great Falls

Thu 12/11

5:30 am-12:40 pm

1 stop6h 10m

$339

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 12/13

5:29 pm-11:22 pm

1 stop6h 53m

Great Falls

Sat 1/10

5:30 am-1:16 pm

1 stop6h 46m

$353

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 4/17

7:00 am-3:20 pm

1 stop9h 20m

Great Falls

Mon 4/20

4:00 pm-11:58 pm

1 stop6h 58m

$354

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 4/17

1:35 pm-10:44 pm

2 stops10h 09m

Great Falls

Mon 4/20

1:10 pm-9:58 pm

1 stop7h 48m

$433

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 4/17

9:10 pm-1:27 pm

2 stops17h 17m

Great Falls

Mon 4/20

2:30 pm-9:13 pm

1 stop5h 43m

$451

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 12/13

6:15 pm-9:32 pm

1 stop28h 17m

Great Falls

Sat 1/10

2:29 pm-11:59 pm

1 stop8h 30m

$477

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 4/17

7:00 am-5:39 pm

2 stops11h 39m

Great Falls

Mon 4/20

6:20 pm-8:34 am

2 stops13h 14m

$499

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 12/24

8:08 pm-1:39 pm

1 stop18h 31m

Great Falls

Fri 12/26

2:35 pm-11:00 pm

1 stop7h 25m

$504

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

What is the cheapest day to depart on your flight to Great Falls?

The cheapest day to depart on your flight to Great Falls is on a Friday when prices can be found for as low as $397. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $676.

What is the cheapest time of day to depart on your flight to Great Falls?

According to our data, the cheapest time of day to fly to Great Falls is in the afternoon. momondo users have found flights departing from Chicago to Great Falls in the afternoon for as low as $398. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $658 on average. Flights to Great Falls from Chicago in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Direct flights

None
There are no direct flights from Chicago to Great Falls. There are no popular flight routes from Chicago to Great Falls.
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  • 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 5h 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 $328Free CancellationRating
7.4
9,017 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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