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Cheap flights from Chicago to Great Falls from $145

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 5/4. 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

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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.
Alaska Airlines Logo
8:48 pm - 5:35 pm
ORD
-
GTF
21h 47m
1 stop
Alaska Airlines Logo
6:15 pm - 6:40 am
GTF
-
ORD
11h 25m
1 stop
$278Alaska Airlines
Fri, May 8 - Sun, May 10
United Airlines Logo
7:05 am - 1:41 pm
ORD
-
GTF
7h 36m
1 stop
United Airlines Logo
12:30 pm - 4:46 pm
GTF
-
ORD
3h 16mnonstop
$288United Airlines
Sun, May 24 - Sat, May 30
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
$298Alaska Airlines
Thu, May 7 - Sun, May 10
Delta Logo
2:00 pm - 10:26 pm
ORD
-
GTF
9h 26m
2 stops
Delta Logo
1:07 pm - 9:50 pm
GTF
-
ORD
7h 43m
1 stop
$304Delta
Wed, May 20 - Tue, May 26
Delta Logo
2:00 pm - 10:26 pm
ORD
-
GTF
9h 26m
2 stops
Delta Logo
5:40 am - 6:05 pm
GTF
-
ORD
11h 25m
2 stops
$309Delta
Wed, May 20 - Tue, May 26
Delta Logo
1:22 pm - 10:26 pm
MDW
-
GTF
10h 04m
2 stops
Delta Logo
5:40 am - 6:33 pm
GTF
-
MDW
11h 53m
2 stops
$309Delta
Wed, May 20 - Tue, May 26
Delta Logo
7:15 am - 12:23 pm
ORD
-
GTF
6h 08m
1 stop
Delta Logo
5:30 am - 12:21 pm
GTF
-
ORD
5h 51m
1 stop
$323Delta
Sat, Sep 5 - Mon, Sep 7
Delta Logo
9:30 am - 5:39 pm
ORD
-
GTF
9h 09m
2 stops
Delta Logo
5:30 am - 12:21 pm
GTF
-
ORD
5h 51m
1 stop
$329Delta
Sat, Sep 5 - Mon, Sep 7
Alaska Airlines Logo
7:59 pm - 5:35 pm
ORD
-
GTF
22h 36m
2 stops
Alaska Airlines Logo
6:15 pm - 6:40 am
GTF
-
ORD
11h 25m
1 stop
$341Alaska Airlines
Fri, May 8 - Sun, May 10
United Airlines Logo
2:33 pm - 9:34 pm
ORD
-
GTF
8h 01m
1 stop
United Airlines Logo
2:31 pm - 9:42 pm
GTF
-
ORD
6h 11m
1 stop
$357United Airlines
Fri, Aug 7 - Fri, Aug 14

Alaska Airlines flights from Chicago to Great Falls

Our best Alaska Airlines deals on Chicago to Great Falls flight tickets
Alaska Airlines
May 8
ORD8:48 pmChicago O'Hare Intl
21h 47m
1 stop
GTF5:35 pmGreat Falls
May 10
GTF6:15 pmGreat Falls
11h 25m
1 stop
ORD6:40 amChicago O'Hare Intl
$278
Alaska Airlines
May 7
ORD6:00 amChicago O'Hare Intl
12h 35m
1 stop
GTF5:35 pmGreat Falls
May 10
GTF6:15 pmGreat Falls
11h 25m
1 stop
ORD6:40 amChicago O'Hare Intl
$298
Alaska Airlines
May 8
ORD7:59 pmChicago O'Hare Intl
22h 36m
2 stops
GTF5:35 pmGreat Falls
May 10
GTF6:15 pmGreat Falls
11h 25m
1 stop
ORD6:40 amChicago O'Hare Intl
$341

United Airlines flights from Chicago to Great Falls

Our best United Airlines deals on Chicago to Great Falls flight tickets
United Airlines
May 24
ORD7:05 amChicago O'Hare Intl
7h 36m
1 stop
GTF1:41 pmGreat Falls
May 30
GTF12:30 pmGreat Falls
3h 16m
ORD4:46 pmChicago O'Hare Intl
$288
United Airlines
Jun 3
ORD7:05 amChicago O'Hare Intl
7h 36m
1 stop
GTF1:41 pmGreat Falls
Jun 6
GTF12:30 pmGreat Falls
3h 16m
ORD4:46 pmChicago O'Hare Intl
$344
United Airlines
Aug 7
ORD2:33 pmChicago O'Hare Intl
8h 01m
1 stop
GTF9:34 pmGreat Falls
Aug 14
GTF2:31 pmGreat Falls
6h 11m
1 stop
ORD9:42 pmChicago O'Hare Intl
$357

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 March 11, 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

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 5/8

8:48 pm-5:35 pm

1 stop21h 47m

Great Falls

Sun 5/10

6:15 pm-6:40 am

1 stop11h 25m

$278
Quickest round-trip

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sun 5/24

7:05 am-1:41 pm

1 stop7h 36m

Great Falls

Sat 5/30

12:30 pm-4:46 pm

Nonstop3h 16m

$288

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 5/7

6:00 am-5:35 pm

1 stop12h 35m

Great Falls

Sun 5/10

6:15 pm-6:40 am

1 stop11h 25m

$298

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 5/20

2:00 pm-10:26 pm

2 stops9h 26m

Great Falls

Tue 5/26

1:07 pm-9:50 pm

1 stop7h 43m

$304

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 5/20

2:00 pm-10:26 pm

2 stops9h 26m

Great Falls

Tue 5/26

5:40 am-6:05 pm

2 stops11h 25m

$309

ChicagoGreat Falls

MDW - GTF

MDWGTF

Chicago Midway

Wed 5/20

1:22 pm-10:26 pm

2 stops10h 04m

Great Falls

Tue 5/26

5:40 am-6:33 pm

2 stops11h 53m

$309

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 9/5

7:15 am-12:23 pm

1 stop6h 08m

Great Falls

Mon 9/7

5:30 am-12:21 pm

1 stop5h 51m

$323

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 9/5

9:30 am-5:39 pm

2 stops9h 09m

Great Falls

Mon 9/7

5:30 am-12:21 pm

1 stop5h 51m

$329

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 5/8

7:59 pm-5:35 pm

2 stops22h 36m

Great Falls

Sun 5/10

6:15 pm-6:40 am

1 stop11h 25m

$341

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 8/7

2:33 pm-9:34 pm

1 stop8h 01m

Great Falls

Fri 8/14

2:31 pm-9:42 pm

1 stop6h 11m

$357

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 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 49% 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 43m

Direct flights

Wed and Sun

Airports in Great Falls

1 airport
The fastest flight from Chicago to Great Falls takes 3h 43m
Direct flights go from Chicago to Great Falls on Wednesday 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

  • 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 43m.

  • 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
9,414 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

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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?

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