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Cheap flights from Great Falls to Chicago 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 Great Falls to Chicago departing on 6/8. 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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Find the cheapest flights from Great Falls to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:40 am - 12:00 pm
GTF
-
ORD
5h 20m
1 stop
Delta Logo
7:45 am - 12:37 pm
ORD
-
GTF
5h 52m
1 stop
$318Delta
Sat, Jul 4 - Sat, Jul 11
Delta Logo
5:40 am - 11:59 am
GTF
-
ORD
5h 19m
1 stop
Delta Logo
8:27 am - 5:42 pm
ORD
-
GTF
10h 15m
2 stops
$324Delta
Sun, Jul 12 - Mon, Jul 20
Delta Logo
5:40 am - 6:33 pm
GTF
-
MDW
11h 53m
2 stops
Delta Logo
1:27 pm - 10:48 pm
MDW
-
GTF
10h 21m
2 stops
$329Delta
Wed, Aug 19 - Sun, Aug 23
Delta Logo
6:25 pm - 7:59 am
GTF
-
ORD
12h 34m
2 stops
Delta Logo
8:28 am - 5:42 pm
ORD
-
GTF
10h 14m
2 stops
$329Delta
Wed, Jul 29 - Fri, Aug 7
United Airlines Logo
2:37 pm - 10:49 pm
GTF
-
ORD
7h 12m
1 stop
United Airlines Logo
9:00 am - 11:46 am
ORD
-
GTF
3h 46mnonstop
$343United Airlines
Sat, Jun 27 - Sat, Jul 4
Delta Logo
6:25 pm - 7:59 am
GTF
-
ORD
12h 34m
2 stops
Delta Logo
7:45 am - 12:28 pm
ORD
-
GTF
5h 43m
1 stop
$349Delta
Wed, Jul 29 - Fri, Aug 7
Delta Logo
6:25 pm - 7:59 am
GTF
-
ORD
12h 34m
2 stops
Delta Logo
8:28 am - 5:42 pm
ORD
-
GTF
10h 14m
2 stops
$354Delta
Wed, Jul 29 - Wed, Aug 5
Alaska Airlines Logo
5:25 pm - 6:22 am
GTF
-
ORD
11h 57m
1 stop
Alaska Airlines Logo
3:52 pm - 4:39 pm
ORD
-
GTF
25h 47m
1 stop
$363Alaska Airlines
Mon, Sep 7 - Fri, Sep 11
United Airlines Logo
2:37 pm - 10:49 pm
GTF
-
ORD
7h 12m
1 stop
United Airlines Logo
8:40 am - 11:26 am
ORD
-
GTF
3h 46mnonstop
$368United Airlines
Sat, Jun 6 - Sat, Jun 13
Multiple Airlines Logo
10:19 am - 5:28 am
GTF
-
ORD
18h 09m
1 stop
Multiple Airlines Logo
7:15 am - 9:34 am
ORD
-
GTF
27h 19m
1 stop
$371Multiple Airlines
Mon, Jul 27 - Thu, Jul 30

Alaska Airlines flights from Great Falls to Chicago

Our best Alaska Airlines deals on Great Falls to Chicago flight tickets
Alaska Airlines
Sep 7
GTF5:25 pmGreat Falls
11h 57m
1 stop
ORD6:22 amChicago O'Hare Intl
Sep 11
ORD3:52 pmChicago O'Hare Intl
25h 47m
1 stop
GTF4:39 pmGreat Falls
$363
Alaska Airlines
Sep 11
GTF5:19 pmGreat Falls
25h 26m
2 stops
ORD7:45 pmChicago O'Hare Intl
Sep 14
ORD3:52 pmChicago O'Hare Intl
25h 47m
1 stop
GTF4:39 pmGreat Falls
$385
Alaska Airlines
Sep 22
GTF5:19 pmGreat Falls
29h 40m
1 stop
ORD11:59 pmChicago O'Hare Intl
Sep 26
ORD8:00 amChicago O'Hare Intl
9h 39m
1 stop
GTF4:39 pmGreat Falls
$429

Delta flights from Great Falls to Chicago

Our best Delta deals on Great Falls to Chicago flight tickets
Delta
Jul 4
GTF5:40 amGreat Falls
5h 20m
1 stop
ORD12:00 pmChicago O'Hare Intl
Jul 11
ORD7:45 amChicago O'Hare Intl
5h 52m
1 stop
GTF12:37 pmGreat Falls
$318
Delta
Jul 12
GTF5:40 amGreat Falls
5h 19m
1 stop
ORD11:59 amChicago O'Hare Intl
Jul 20
ORD8:27 amChicago O'Hare Intl
10h 15m
2 stops
GTF5:42 pmGreat Falls
$324
Delta
Jul 29
GTF6:25 pmGreat Falls
12h 34m
2 stops
ORD7:59 amChicago O'Hare Intl
Aug 7
ORD8:28 amChicago O'Hare Intl
10h 14m
2 stops
GTF5:42 pmGreat Falls
$329

momondo Fare Finder

 
Customize your flight search to find flights from Great Falls to Chicago 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 May 21, 2026.
Use the filters below to find and compare flights from Great Falls to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 7/4

5:40 am-12:00 pm

1 stop5h 20m

Chicago O'Hare Intl

Sat 7/11

7:45 am-12:37 pm

1 stop5h 52m

$318

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sun 7/12

5:40 am-11:59 am

1 stop5h 19m

Chicago O'Hare Intl

Mon 7/20

8:27 am-5:42 pm

2 stops10h 15m

$324

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

Wed 8/19

5:40 am-6:33 pm

2 stops11h 53m

Chicago Midway

Sun 8/23

1:27 pm-10:48 pm

2 stops10h 21m

$329

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 7/29

6:25 pm-7:59 am

2 stops12h 34m

Chicago O'Hare Intl

Fri 8/7

8:28 am-5:42 pm

2 stops10h 14m

$329
Quickest round-trip

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 6/27

2:37 pm-10:49 pm

1 stop7h 12m

Chicago O'Hare Intl

Sat 7/4

9:00 am-11:46 am

Nonstop3h 46m

$343

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 7/29

6:25 pm-7:59 am

2 stops12h 34m

Chicago O'Hare Intl

Fri 8/7

7:45 am-12:28 pm

1 stop5h 43m

$349

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 7/29

6:25 pm-7:59 am

2 stops12h 34m

Chicago O'Hare Intl

Wed 8/5

8:28 am-5:42 pm

2 stops10h 14m

$354

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Mon 9/7

5:25 pm-6:22 am

1 stop11h 57m

Chicago O'Hare Intl

Fri 9/11

3:52 pm-4:39 pm

1 stop25h 47m

$363

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 6/6

2:37 pm-10:49 pm

1 stop7h 12m

Chicago O'Hare Intl

Sat 6/13

8:40 am-11:26 am

Nonstop3h 46m

$368

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Mon 7/27

10:19 am-5:28 am

1 stop18h 09m

Chicago O'Hare Intl

Thu 7/30

7:15 am-9:34 am

1 stop27h 19m

$371

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 Chicago from

How to get the cheapest flight ticket from Great Falls to Chicago

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 Chicago?

The month of November is, on average, the cheapest month to fly to Chicago from Great Falls, with most prices found around $0. If you’re not able to fly to Chicago in November, then January is your next best option. Flight prices from Great Falls to Chicago during January average around $0.

What is the cheapest Great Falls to Chicago flight route?

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

What cabin class options are available on Great Falls to Chicago flights?

There are 2 cabin classes available to choose from on Great Falls to Chicago 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 flights?

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

When to book flights from Great Falls to Chicago

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

Cheap Great Falls to Chicago (GTF to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Great Falls to Chicago

Best Price Found

$576

Fastest flight time

3h 18m

Direct flights

Wed, Thu, Fri and Sun

Airports in Chicago

3 airports
The best flight deal from Great Falls to Chicago found on momondo in the last 72 hours is $576
The fastest flight from Great Falls to Chicago takes 3h 18m
Direct flights go from Great Falls to Chicago on Wednesday, Thursday, Friday and Sunday. There are no airlines offering direct flights.
There are 3 airports in Chicago. From Great Falls there are direct flights to Chicago O'Hare Intl (ORD).
Search flight deals

Frequently asked questions about flying from Great Falls to Chicago

  • How far is Great Falls to Chicago by plane?

    A flight from Great Falls to Chicago will travel around 1219.6 mi. In terms of flight time, this usually takes a little over 3h 18m.

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

    Prices for flights from Great Falls Airport to Chicago were last updated today.

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

  • How old do you have to be to fly from Great Falls Airport to Chicago?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Great Falls Airport to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The travel and health documents you'll need for your trip to Chicago 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. 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?

  • What is the most popular airline from Great Falls to Chicago?

Best airlines flying from Great Falls to Chicago

Compare and see reviews for airlines that fly from Great Falls to Chicago with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $129Free CancellationRating
7.9
8,451 reviews
Search Delta flights
United AirlinesPriceFrom $277Free CancellationRating
7.4
9,748 reviews
Search United Airlines flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Saint Joseph
Benton Harbor
Portage
Lansing
Valparaiso
Munster
Schererville
Crown Point
Chesterton
Monticello
Porter
Griffith
Saint John

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Great Falls to Chicago. momondo saves you time and could save you money on your trip.

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

Flights from Great Falls to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Great Falls to Chicago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport