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Cheap flights from Chicago to Great Falls from $139

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 8/26. 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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Cheap round-trip flights

United Airlines Logo
2:53 pm - 9:28 pmORD-GTF
7h 35m1 stop
United Airlines Logo
2:35 pm - 11:59 pmGTF-ORD
8h 24m1 stop
$296United Airlines
Find Deal
Fri, Sep 12 - Fri, Sep 19
Alaska Airlines Logo
8:00 am - 3:49 pmORD-GTF
8h 49m1 stop
Alaska Airlines Logo
4:29 pm - 7:03 amGTF-ORD
13h 34m1 stop
$302Alaska Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27
Delta Logo
1:43 pm - 8:34 pmMDW-GTF
7h 51m1 stop
Delta Logo
6:00 am - 11:34 amGTF-MDW
4h 34m1 stop
$319Delta
Find Deal
Wed, Aug 27 - Sat, Aug 30
Logo
9:00 am - 9:31 pmORD-GTF
13h 31m1 stop
Logo
10:21 pm - 10:18 amGTF-ORD
34h 57m2 stops
$321
Find Deal
Fri, Sep 12 - Fri, Sep 19
Delta Logo
1:43 pm - 8:34 pmMDW-GTF
7h 51m1 stop
Delta Logo
6:00 am - 6:37 pmGTF-MDW
11h 37m2 stops
$329Delta
Find Deal
Wed, Aug 27 - Sat, Aug 30
Alaska Airlines Logo
3:50 pm - 5:35 pmORD-GTF
26h 45m2 stops
Alaska Airlines Logo
6:15 pm - 6:24 amGTF-ORD
11h 09m1 stop
$329Alaska Airlines
Find Deal
Tue, Oct 14 - Sun, Oct 19
Logo
9:45 pm - 5:17 pmORD-GTF
20h 32m1 stop
Logo
6:07 pm - 4:50 amGTF-ORD
9h 43m1 stop
$331
Find Deal
Thu, Aug 28 - Mon, Sep 1
United Airlines Logo
2:53 pm - 9:28 pmORD-GTF
7h 35m1 stop
United Airlines Logo
2:35 pm - 11:59 pmGTF-ORD
8h 24m1 stop
$358United Airlines
Find Deal
Tue, Aug 26 - Fri, Aug 29
United Airlines Logo
2:53 pm - 9:28 pmORD-GTF
7h 35m1 stop
United Airlines Logo
2:35 pm - 10:42 pmGTF-ORD
7h 07m1 stop
$392United Airlines
Find Deal
Fri, Aug 29 - Tue, Sep 2
United Airlines Logo
8:58 am - 9:28 pmORD-GTF
13h 30m2 stops
United Airlines Logo
2:31 pm - 11:59 pmGTF-ORD
8h 28m1 stop
$422United Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27

United Airlines flights from Chicago to Great Falls

Our best United Airlines deals on Chicago to Great Falls flight tickets
United Airlines
Sep 12
ORD2:53 pmChicago O'Hare Intl
7h 35m
1 stop
GTF9:28 pmGreat Falls
Sep 19
GTF2:35 pmGreat Falls
8h 24m
1 stop
ORD11:59 pmChicago O'Hare Intl
$296
Find similar
United Airlines
Aug 26
ORD2:53 pmChicago O'Hare Intl
7h 35m
1 stop
GTF9:28 pmGreat Falls
Aug 29
GTF2:35 pmGreat Falls
8h 24m
1 stop
ORD11:59 pmChicago O'Hare Intl
$358
Find similar
United Airlines
Aug 29
ORD2:53 pmChicago O'Hare Intl
7h 35m
1 stop
GTF9:28 pmGreat Falls
Sep 2
GTF2:35 pmGreat Falls
7h 07m
1 stop
ORD10:42 pmChicago O'Hare Intl
$392
Find similar

Delta flights from Chicago to Great Falls

Our best Delta deals on Chicago to Great Falls flight tickets
Delta
Aug 27
MDW1:43 pmChicago Midway
7h 51m
1 stop
GTF8:34 pmGreat Falls
Aug 30
GTF6:00 amGreat Falls
4h 34m
1 stop
MDW11:34 amChicago Midway
$319
Find similar
Delta
Aug 23
MDW9:15 amChicago Midway
9h 11m
2 stops
GTF5:26 pmGreat Falls
Aug 30
GTF6:00 amGreat Falls
4h 34m
1 stop
MDW11:34 amChicago Midway
$329
Find similar
Delta
Aug 23
MDW9:15 amChicago Midway
9h 11m
2 stops
GTF5:26 pmGreat Falls
Aug 30
GTF6:00 amGreat Falls
11h 37m
2 stops
MDW6:37 pmChicago Midway
$394
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 August 14, 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

Fri 9/12

2:53 pm-9:28 pm

1 stop7h 35m

Great Falls

Fri 9/19

2:35 pm-11:59 pm

1 stop8h 24m

$296

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 9/20

8:00 am-3:49 pm

1 stop8h 49m

Great Falls

Sat 9/27

4:29 pm-7:03 am

1 stop13h 34m

$302

ChicagoGreat Falls

MDW - GTF

MDWGTF

Chicago Midway

Wed 8/27

1:43 pm-8:34 pm

1 stop7h 51m

Great Falls

Sat 8/30

6:00 am-11:34 am

1 stop4h 34m

$319

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 9/12

9:00 am-9:31 pm

1 stop13h 31m

Great Falls

Fri 9/19

10:21 pm-10:18 am

2 stops34h 57m

$321

ChicagoGreat Falls

MDW - GTF

MDWGTF

Chicago Midway

Wed 8/27

1:43 pm-8:34 pm

1 stop7h 51m

Great Falls

Sat 8/30

6:00 am-6:37 pm

2 stops11h 37m

$329

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 10/14

3:50 pm-5:35 pm

2 stops26h 45m

Great Falls

Sun 10/19

6:15 pm-6:24 am

1 stop11h 09m

$329

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 8/28

9:45 pm-5:17 pm

1 stop20h 32m

Great Falls

Mon 9/1

6:07 pm-4:50 am

1 stop9h 43m

$331

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 8/26

2:53 pm-9:28 pm

1 stop7h 35m

Great Falls

Fri 8/29

2:35 pm-11:59 pm

1 stop8h 24m

$358

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 8/29

2:53 pm-9:28 pm

1 stop7h 35m

Great Falls

Tue 9/2

2:35 pm-10:42 pm

1 stop7h 07m

$392

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 9/20

8:58 am-9:28 pm

2 stops13h 30m

Great Falls

Sat 9/27

2:31 pm-11:59 pm

1 stop8h 28m

$422

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 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 59% 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

$139

Fastest flight time

5h 44m

Direct flights

None

Airports in Great Falls

1 airport
The best one-way flight to Great Falls from Chicago in the past 72 hours is $139. The best round-trip flight deal from Chicago to Great Falls found on momondo in the last 72 hours is $296.
The fastest flight from Chicago to Great Falls takes 5h 44m
There are no direct flights from Chicago to Great Falls. Popular non-direct routes for this connection are Chicago Midway Airport - Great Falls Airport and Chicago O'Hare Intl Airport - Great Falls Airport.
There is 1 airport near Great Falls: Great Falls (GTF)
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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 6h 14m.

  • 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
Alaska AirlinesPriceFrom $225Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
8,916 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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