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Cheap flights from Chicago to Great Falls from $165

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 9/5. 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 to Great Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 1:29 pm
ORD
-
GTF
8h 29m
1 stop
United Airlines Logo
2:25 pm - 9:52 pm
GTF
-
ORD
6h 27m
1 stop
$318United Airlines
Tue, Aug 18 - Tue, Aug 25
Delta Logo
6:00 am - 12:28 pm
ORD
-
GTF
7h 28m
2 stops
Delta Logo
5:40 am - 11:59 am
GTF
-
ORD
5h 19m
1 stop
$324Delta
Thu, Aug 20 - Sat, Aug 22
Delta Logo
7:45 am - 12:35 pm
ORD
-
GTF
5h 50m
1 stop
Delta Logo
1:15 pm - 9:55 pm
GTF
-
ORD
7h 40m
1 stop
$328Delta
Sat, Sep 19 - Sat, Sep 26
Delta Logo
5:30 am - 5:38 pm
ORD
-
GTF
13h 08m
2 stops
Delta Logo
1:08 pm - 11:57 pm
GTF
-
ORD
9h 49m
2 stops
$329Delta
Fri, Aug 21 - Sat, Aug 29
Delta Logo
6:00 am - 12:28 pm
ORD
-
GTF
7h 28m
2 stops
Delta Logo
1:08 pm - 9:33 pm
GTF
-
ORD
7h 25m
1 stop
$334Delta
Thu, Aug 20 - Tue, Aug 25
Delta Logo
6:00 am - 12:28 pm
ORD
-
GTF
7h 28m
2 stops
Delta Logo
6:18 pm - 8:44 am
GTF
-
ORD
13h 26m
2 stops
$339Delta
Thu, Aug 20 - Sun, Aug 23
Alaska Airlines Logo
8:00 am - 4:39 pm
ORD
-
GTF
9h 39m
1 stop
Alaska Airlines Logo
5:19 pm - 6:20 am
GTF
-
ORD
12h 01m
1 stop
$348Alaska Airlines
Sat, Sep 19 - Sat, Sep 26
Delta Logo
8:55 am - 5:41 pm
ORD
-
GTF
9h 46m
2 stops
Delta Logo
5:40 am - 11:55 am
GTF
-
ORD
5h 15m
1 stop
$354Delta
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
$358Delta
Tue, Aug 18 - Sat, Aug 22
Delta Logo
6:00 am - 12:28 pm
ORD
-
GTF
7h 28m
2 stops
Delta Logo
5:40 am - 4:51 pm
GTF
-
ORD
10h 11m
2 stops
$359Delta
Tue, Aug 18 - Sat, Aug 22

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United Airlines flights from Chicago to Great Falls

Our best United Airlines deals on Chicago to Great Falls flight tickets
United Airlines
Aug 18
ORD6:00 amChicago O'Hare Intl
8h 29m
1 stop
GTF1:29 pmGreat Falls
Aug 25
GTF2:25 pmGreat Falls
6h 27m
1 stop
ORD9:52 pmChicago O'Hare Intl
$318
United Airlines
Aug 20
ORD5:55 amChicago O'Hare Intl
8h 34m
1 stop
GTF1:29 pmGreat Falls
Aug 22
GTF2:25 pmGreat Falls
6h 05m
1 stop
ORD9:30 pmChicago O'Hare Intl
$366
United Airlines
Aug 21
ORD5:55 amChicago O'Hare Intl
8h 34m
1 stop
GTF1:29 pmGreat Falls
Aug 29
GTF6:15 amGreat Falls
7h 45m
1 stop
ORD3:00 pmChicago O'Hare Intl
$408

Delta flights from Chicago to Great Falls

Our best Delta deals on Chicago to Great Falls flight tickets
Delta
Aug 21
ORD8:05 amChicago O'Hare Intl
10h 33m
2 stops
GTF5:38 pmGreat Falls
Aug 29
GTF5:40 amGreat Falls
5h 19m
1 stop
ORD11:59 amChicago O'Hare Intl
$324
Delta
Sep 13
ORD7:45 amChicago O'Hare Intl
5h 50m
1 stop
GTF12:35 pmGreat Falls
Sep 21
GTF5:40 amGreat Falls
5h 15m
1 stop
ORD11:55 amChicago O'Hare Intl
$328
Delta
Aug 21
ORD5:30 amChicago O'Hare Intl
13h 08m
2 stops
GTF5:38 pmGreat Falls
Aug 29
GTF1:08 pmGreat Falls
9h 49m
2 stops
ORD11:57 pmChicago O'Hare Intl
$329

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 July 24, 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

Tue 8/18

6:00 am-1:29 pm

1 stop8h 29m

Great Falls

Tue 8/25

2:25 pm-9:52 pm

1 stop6h 27m

$318

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 8/20

6:00 am-12:28 pm

2 stops7h 28m

Great Falls

Sat 8/22

5:40 am-11:59 am

1 stop5h 19m

$324

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-9:55 pm

1 stop7h 40m

$328

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 8/21

5:30 am-5:38 pm

2 stops13h 08m

Great Falls

Sat 8/29

1:08 pm-11:57 pm

2 stops9h 49m

$329

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 8/20

6:00 am-12:28 pm

2 stops7h 28m

Great Falls

Tue 8/25

1:08 pm-9:33 pm

1 stop7h 25m

$334

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 8/20

6:00 am-12:28 pm

2 stops7h 28m

Great Falls

Sun 8/23

6:18 pm-8:44 am

2 stops13h 26m

$339

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 9/19

8:00 am-4:39 pm

1 stop9h 39m

Great Falls

Sat 9/26

5:19 pm-6:20 am

1 stop12h 01m

$348

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 9/19

8:55 am-5:41 pm

2 stops9h 46m

Great Falls

Sat 9/26

5:40 am-11:55 am

1 stop5h 15m

$354
Quickest 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

Sat 8/22

5:40 am-11:59 am

1 stop5h 19m

$358

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 8/18

6:00 am-12:28 pm

2 stops7h 28m

Great Falls

Sat 8/22

5:40 am-4:51 pm

2 stops10h 11m

$359

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 typical price of a round-trip flight between Chicago and Great Falls?

Prices are currently low for flights on this route.

Typical prices usually range from $355 to $544.
The lowest price recently found on this route was $318.

What is the cheapest month to fly to Great Falls?

The month of May is another great option to travel to Great Falls, with average flight prices from Chicago averaging around $296.

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 is only 1 cabin class 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 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

Best Price Found

$558

Fastest flight time

3h 46m

Direct flights

Sun

Airports in Great Falls

1 airport
The best flight deal from Chicago to Great Falls found on momondo in the last 72 hours is $558
The fastest flight from Chicago to Great Falls takes 3h 46m
Direct flights go from Chicago to Great Falls on 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
10,026 reviews
Search United Airlines flights
DeltaPriceFrom $318Free CancellationRating
7.8
8,482 reviews
Search Delta flights

  • United Airlines Flights From Chicago to Great Falls

    United Airlines operates around 4 flights from Chicago to Great Falls every week. The average price of these flights found in the last 72 hours has been $470, but momondo users have found United Airlines deals from Chicago to Great Falls from as low as $275 round-trip. United Airlines has been scored 7.4/10 in 10,026 reviews.

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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