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Cheap flights from Great Falls to Chicago from $200

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to Chicago departing on 6/12. 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 Great Falls to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:07 pm - 9:50 pm
GTF
-
ORD
7h 43m
1 stop
Delta Logo
2:00 pm - 10:26 pm
ORD
-
GTF
9h 26m
2 stops
$304Delta
Thu, May 7 - Sun, May 10
Delta Logo
5:40 am - 8:14 pm
GTF
-
ORD
13h 34m
2 stops
Delta Logo
9:10 am - 5:39 pm
ORD
-
GTF
9h 29m
2 stops
$309Delta
Wed, May 27 - Tue, Jun 2
United Airlines Logo
2:31 pm - 9:42 pm
GTF
-
ORD
6h 11m
1 stop
United Airlines Logo
4:35 pm - 9:28 pm
ORD
-
GTF
5h 53m
1 stop
$318United Airlines
Thu, Aug 13 - Mon, Aug 17
Delta Logo
1:07 pm - 9:50 pm
GTF
-
ORD
7h 43m
1 stop
Delta Logo
7:45 am - 12:27 pm
ORD
-
GTF
5h 42m
1 stop
$323Delta
Wed, May 27 - Tue, Jun 2
Delta Logo
5:40 am - 6:05 pm
GTF
-
ORD
11h 25m
2 stops
Delta Logo
2:00 pm - 10:26 pm
ORD
-
GTF
9h 26m
2 stops
$334Delta
Thu, May 7 - Sun, May 10
United Airlines Logo
2:37 pm - 11:19 pm
GTF
-
ORD
7h 42m
1 stop
United Airlines Logo
2:33 pm - 9:34 pm
ORD
-
GTF
8h 01m
1 stop
$356United Airlines
Fri, Jun 26 - Tue, Jul 7
United Airlines Logo
2:30 pm - 10:55 pm
GTF
-
ORD
7h 25m
1 stop
United Airlines Logo
2:05 pm - 9:17 pm
ORD
-
GTF
8h 12m
1 stop
$358United Airlines
Fri, Mar 27 - Tue, Mar 31
Delta Logo
5:40 am - 11:52 am
GTF
-
ORD
5h 12m
1 stop
Delta Logo
7:45 am - 12:27 pm
ORD
-
GTF
5h 42m
1 stop
$363Delta
Wed, May 27 - Mon, Jun 1
Delta Logo
5:40 am - 11:52 am
GTF
-
ORD
5h 12m
1 stop
Delta Logo
9:10 am - 5:39 pm
ORD
-
GTF
9h 29m
2 stops
$369Delta
Thu, May 28 - Tue, Jun 2
United Airlines Logo
2:30 pm - 10:58 pm
GTF
-
ORD
7h 28m
1 stop
United Airlines Logo
2:05 pm - 9:17 pm
ORD
-
GTF
8h 12m
1 stop
$378United Airlines
Sat, Apr 25 - Wed, Apr 29

Delta flights from Great Falls to Chicago O'Hare Intl Airport

Our best Delta deals on Great Falls to Chicago O'Hare Intl Airport flight tickets
Delta
Apr 29
GTF6:20 pmGreat Falls
13h 17m
2 stops
ORD8:37 amChicago O'Hare Intl
May 3
ORD7:35 amChicago O'Hare Intl
5h 52m
1 stop
GTF12:27 pmGreat Falls
$414
Delta
Apr 29
GTF6:20 pmGreat Falls
13h 17m
2 stops
ORD8:37 amChicago O'Hare Intl
May 3
ORD1:36 pmChicago O'Hare Intl
9h 53m
2 stops
GTF10:29 pmGreat Falls
$419
Delta
Apr 29
GTF1:09 pmGreat Falls
7h 09m
1 stop
ORD9:18 pmChicago O'Hare Intl
May 3
ORD7:35 amChicago O'Hare Intl
5h 52m
1 stop
GTF12:27 pmGreat Falls
$428

Alaska Airlines flights from Great Falls to Chicago O'Hare Intl Airport

Our best Alaska Airlines deals on Great Falls to Chicago O'Hare Intl Airport flight tickets
Alaska Airlines
Apr 14
GTF5:06 pmGreat Falls
29h 53m
1 stop
ORD11:59 pmChicago O'Hare Intl
Apr 17
ORD6:00 amChicago O'Hare Intl
11h 26m
1 stop
GTF4:26 pmGreat Falls
$402
Alaska Airlines
Apr 14
GTF5:06 pmGreat Falls
29h 53m
1 stop
ORD11:59 pmChicago O'Hare Intl
Apr 17
ORD6:00 amChicago O'Hare Intl
11h 26m
1 stop
GTF4:26 pmGreat Falls
$431
Alaska Airlines
Apr 25
GTF6:15 pmGreat Falls
11h 25m
1 stop
ORD6:40 amChicago O'Hare Intl
Apr 29
ORD8:48 pmChicago O'Hare Intl
21h 47m
1 stop
GTF5:35 pmGreat Falls
$432

momondo Fare Finder

 
Customize your flight search to find flights from Great Falls to Chicago O'Hare Intl Airport 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 16, 2026.
Use the filters below to find and compare flights from Great Falls to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 5/7

1:07 pm-9:50 pm

1 stop7h 43m

Chicago O'Hare Intl

Sun 5/10

2:00 pm-10:26 pm

2 stops9h 26m

$304

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 5/27

5:40 am-8:14 pm

2 stops13h 34m

Chicago O'Hare Intl

Tue 6/2

9:10 am-5:39 pm

2 stops9h 29m

$309

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 8/13

2:31 pm-9:42 pm

1 stop6h 11m

Chicago O'Hare Intl

Mon 8/17

4:35 pm-9:28 pm

1 stop5h 53m

$318

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 5/27

1:07 pm-9:50 pm

1 stop7h 43m

Chicago O'Hare Intl

Tue 6/2

7:45 am-12:27 pm

1 stop5h 42m

$323

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 5/7

5:40 am-6:05 pm

2 stops11h 25m

Chicago O'Hare Intl

Sun 5/10

2:00 pm-10:26 pm

2 stops9h 26m

$334

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 6/26

2:37 pm-11:19 pm

1 stop7h 42m

Chicago O'Hare Intl

Tue 7/7

2:33 pm-9:34 pm

1 stop8h 01m

$356

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 3/27

2:30 pm-10:55 pm

1 stop7h 25m

Chicago O'Hare Intl

Tue 3/31

2:05 pm-9:17 pm

1 stop8h 12m

$358
Quickest round-trip

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 5/27

5:40 am-11:52 am

1 stop5h 12m

Chicago O'Hare Intl

Mon 6/1

7:45 am-12:27 pm

1 stop5h 42m

$363

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 5/28

5:40 am-11:52 am

1 stop5h 12m

Chicago O'Hare Intl

Tue 6/2

9:10 am-5:39 pm

2 stops9h 29m

$369

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 4/25

2:30 pm-10:58 pm

1 stop7h 28m

Chicago O'Hare Intl

Wed 4/29

2:05 pm-9:17 pm

1 stop8h 12m

$378

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

See travel insights to Chicago from

How to get the cheapest flight ticket from Great Falls to Chicago O'Hare Intl Airport

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 Great Falls to Chicago O'Hare Intl flight route?

Fly from Great Falls to Chicago O'Hare Intl for the best Great Falls - Chicago O'Hare Intl flight prices

What cabin class options are available on Great Falls to Chicago O'Hare Intl flights?

There are 3 cabin classes available to choose from on Great Falls to Chicago O'Hare Intl 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 Great Falls to Chicago O'Hare Intl Airport flights?

You could potentially save up to 36% on your flight if you consider stops on a Great Falls to Chicago O'Hare Intl Airport flight.

When to book flights from Great Falls to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Great Falls to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Great Falls to Chicago O'Hare Intl Airport (GTF to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Great Falls to Chicago O'Hare Intl Airport

Fastest flight time

5h 47m

Direct flights

Thu
The fastest flight from Great Falls to Chicago O'Hare Intl Airport takes 5h 47m
Direct flights go from Great Falls to Chicago O'Hare Intl Airport on Thursday. There are no airlines offering direct flights.
Search flight deals

  • How far is Great Falls to Chicago O'Hare Intl by plane?

    There are 1203.7 mi between Great Falls and Chicago O'Hare Intl. Flights usually cover this in 5h 47m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Great Falls Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Great Falls Airport to Chicago O'Hare Intl Airport are updated daily.

  • How many operators does momondo search for flights from Great Falls Airport to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Great Falls Airport to Chicago O'Hare Intl 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 Great Falls Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Great Falls to Chicago O'Hare Intl Airport?

  • What is the most popular airline from Great Falls to Chicago O'Hare Intl Airport?

Best airlines flying from Great Falls to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Great Falls to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $277Free CancellationRating
7.4
9,428 reviews
Search United Airlines flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Schaumburg
South Haven
Rockford
Merrillville
Gurnee
Rosemont
Naperville
New Buffalo
Orland Park
Kenosha
Oak Brook
Joliet
Racine
Janesville
Hammond
Aurora
Tinley Park
Elgin
South Holland

Why use momondo?

Why should I use momondo to find a flight deal from Great Falls to Chicago?

It is quick and easy to find Great Falls to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

Can I find flights from Great Falls to Chicago with flexible booking policies on momondo?

momondo does allow users to show only those flights to Chicago from Great Falls which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Great Falls to Chicago?

momondo provides multiple filters to help you find the best flight to Chicago from Great Falls. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Great Falls to Chicago right now. Can momondo alert me if prices change?

Price alerts on flights to Chicago from Great Falls 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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