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Cheap flights from Chicago to Great Falls from $163

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 1/15. 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
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.
Delta Logo
6:50 am - 5:30 pm
ORD
-
GTF
11h 40m2 stops
Delta Logo
5:30 am - 12:41 pm
GTF
-
ORD
6h 11m1 stop
$280Delta
Wed, Jan 14 - Sun, Jan 18
Alaska Airlines Logo
8:00 am - 5:19 pm
ORD
-
GTF
10h 19m1 stop
Alaska Airlines Logo
5:59 pm - 2:38 pm
GTF
-
ORD
19h 39m1 stop
$313Alaska Airlines
Sat, Jan 17 - Wed, Jan 21
United Airlines Logo
7:00 am - 1:48 pm
ORD
-
GTF
7h 48m1 stop
United Airlines Logo
2:29 pm - 11:59 pm
GTF
-
ORD
8h 30m1 stop
$344United Airlines
Wed, Jan 14 - Sun, Jan 18
Delta Logo
7:15 am - 12:23 pm
ORD
-
GTF
6h 08m1 stop
Delta Logo
6:20 pm - 7:26 am
GTF
-
ORD
12h 06m2 stops
$363Delta
Sat, Jun 6 - Thu, Jun 11
Alaska Airlines Logo
8:00 am - 5:19 pm
ORD
-
GTF
10h 19m1 stop
Alaska Airlines Logo
5:59 pm - 1:10 pm
GTF
-
ORD
18h 11m2 stops
$394Alaska Airlines
Sat, Jan 17 - Wed, Jan 21
Alaska Airlines Logo
9:00 am - 5:19 pm
ORD
-
GTF
33h 19m2 stops
Alaska Airlines Logo
5:59 pm - 1:10 pm
GTF
-
ORD
18h 11m2 stops
$498Alaska Airlines
Wed, Jan 14 - Sun, Jan 18
United Airlines Logo
7:58 pm - 9:53 pm
ORD
-
GTF
26h 55m2 stops
United Airlines Logo
2:29 pm - 5:02 pm
GTF
-
ORD
25h 33m2 stops
$578United Airlines
Sat, Jan 17 - Wed, Jan 21
United Airlines Logo
2:31 pm - 10:46 pm
ORD
-
GTF
9h 15m1 stop
United Airlines Logo
2:35 pm - 11:00 pm
GTF
-
ORD
7h 25m1 stop
$586United Airlines
Wed, Dec 31 - Mon, Jan 5
Delta Logo
3:50 pm - 10:44 pm
ORD
-
GTF
7h 54m2 stops
Delta Logo
6:20 pm - 7:26 am
GTF
-
ORD
12h 06m2 stops
$598Delta
Sat, Jun 6 - Thu, Jun 11
United Airlines Logo
7:20 am - 10:46 pm
ORD
-
GTF
16h 26m2 stops
United Airlines Logo
2:35 pm - 11:00 pm
GTF
-
ORD
7h 25m1 stop
$631United Airlines
Wed, Dec 31 - Mon, Jan 5

Delta flights from Chicago to Great Falls

Our best Delta deals on Chicago to Great Falls flight tickets
Delta
Jan 14
ORD6:50 amChicago O'Hare Intl
11h 40m
2 stops
GTF5:30 pmGreat Falls
Jan 18
GTF5:30 amGreat Falls
6h 11m
1 stop
ORD12:41 pmChicago O'Hare Intl
$280
Find similar
Delta
Jun 6
ORD7:15 amChicago O'Hare Intl
6h 08m
1 stop
GTF12:23 pmGreat Falls
Jun 11
GTF6:20 pmGreat Falls
12h 06m
2 stops
ORD7:26 amChicago O'Hare Intl
$363
Find similar
Delta
Jun 6
ORD3:50 pmChicago O'Hare Intl
7h 54m
2 stops
GTF10:44 pmGreat Falls
Jun 11
GTF6:20 pmGreat Falls
12h 06m
2 stops
ORD7:26 amChicago O'Hare Intl
$598
Find similar

Alaska Airlines flights from Chicago to Great Falls

Our best Alaska Airlines deals on Chicago to Great Falls flight tickets
Alaska Airlines
Jan 17
ORD8:00 amChicago O'Hare Intl
10h 19m
1 stop
GTF5:19 pmGreat Falls
Jan 21
GTF5:59 pmGreat Falls
19h 39m
1 stop
ORD2:38 pmChicago O'Hare Intl
$313
Find similar
Alaska Airlines
Jan 17
ORD8:00 amChicago O'Hare Intl
10h 19m
1 stop
GTF5:19 pmGreat Falls
Jan 21
GTF5:59 pmGreat Falls
18h 11m
2 stops
ORD1:10 pmChicago O'Hare Intl
$394
Find similar
Alaska Airlines
Jan 14
ORD9:00 amChicago O'Hare Intl
33h 19m
2 stops
GTF5:19 pmGreat Falls
Jan 18
GTF5:59 pmGreat Falls
18h 11m
2 stops
ORD1:10 pmChicago O'Hare Intl
$498
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 December 11, 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

Wed 1/14

6:50 am-5:30 pm

2 stops11h 40m

Great Falls

Sun 1/18

5:30 am-12:41 pm

1 stop6h 11m

$280

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 1/17

8:00 am-5:19 pm

1 stop10h 19m

Great Falls

Wed 1/21

5:59 pm-2:38 pm

1 stop19h 39m

$313

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 1/14

7:00 am-1:48 pm

1 stop7h 48m

Great Falls

Sun 1/18

2:29 pm-11:59 pm

1 stop8h 30m

$344

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 6/6

7:15 am-12:23 pm

1 stop6h 08m

Great Falls

Thu 6/11

6:20 pm-7:26 am

2 stops12h 06m

$363

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 1/17

8:00 am-5:19 pm

1 stop10h 19m

Great Falls

Wed 1/21

5:59 pm-1:10 pm

2 stops18h 11m

$394

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 1/14

9:00 am-5:19 pm

2 stops33h 19m

Great Falls

Sun 1/18

5:59 pm-1:10 pm

2 stops18h 11m

$498

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 1/17

7:58 pm-9:53 pm

2 stops26h 55m

Great Falls

Wed 1/21

2:29 pm-5:02 pm

2 stops25h 33m

$578

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 12/31

2:31 pm-10:46 pm

1 stop9h 15m

Great Falls

Mon 1/5

2:35 pm-11:00 pm

1 stop7h 25m

$586

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 6/6

3:50 pm-10:44 pm

2 stops7h 54m

Great Falls

Thu 6/11

6:20 pm-7:26 am

2 stops12h 06m

$598

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 12/31

7:20 am-10:46 pm

2 stops16h 26m

Great Falls

Mon 1/5

2:35 pm-11:00 pm

1 stop7h 25m

$631

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

Fastest flight time

6h 44m

Direct flights

None
The fastest flight from Chicago to Great Falls takes 6h 44m
There are no direct flights from Chicago to Great Falls. There are no popular flight routes from Chicago to Great Falls.
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 6h 44m.

  • 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
9,095 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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