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Cheap flights from Great Falls to Chicago from $220

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 8/7. 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 Great Falls to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
5:19 pm - 6:20 am
GTF
-
ORD
12h 01m
1 stop
Alaska Airlines Logo
3:52 pm - 4:39 pm
ORD
-
GTF
25h 47m
1 stop
$318Alaska Airlines
Thu, Sep 17 - Wed, Sep 23
Alaska Airlines Logo
5:09 pm - 6:20 am
GTF
-
ORD
12h 11m
1 stop
Alaska Airlines Logo
6:00 am - 4:29 pm
ORD
-
GTF
11h 29m
1 stop
$373Alaska Airlines
Sat, Aug 8 - Sat, Aug 15
Alaska Airlines Logo
5:19 pm - 6:20 am
GTF
-
ORD
12h 01m
1 stop
Alaska Airlines Logo
8:00 am - 4:39 pm
ORD
-
GTF
9h 39m
1 stop
$378Alaska Airlines
Thu, Sep 17 - Thu, Sep 24
Alaska Airlines Logo
5:19 pm - 8:15 pm
GTF
-
ORD
25h 56m
2 stops
Alaska Airlines Logo
1:03 pm - 4:39 pm
ORD
-
GTF
28h 36m
1 stop
$385Alaska Airlines
Thu, Sep 17 - Wed, Sep 23
Alaska Airlines Logo
5:19 pm - 6:20 am
GTF
-
ORD
12h 01m
1 stop
Alaska Airlines Logo
9:00 am - 4:35 pm
ORD
-
GTF
8h 35m
1 stop
$389Alaska Airlines
Tue, Sep 29 - Sat, Oct 3
Delta Logo
1:20 pm - 9:23 pm
GTF
-
ORD
7h 03m
1 stop
Delta Logo
7:45 am - 12:37 pm
ORD
-
GTF
5h 52m
1 stop
$403Delta
Sat, Jul 4 - Fri, Jul 10
United Airlines Logo
2:25 pm - 10:46 pm
GTF
-
ORD
7h 21m
1 stop
United Airlines Logo
2:42 pm - 9:12 pm
ORD
-
GTF
7h 30m
1 stop
$408United Airlines
Sat, Aug 29 - Tue, Sep 1
Delta Logo
5:40 am - 5:54 pm
GTF
-
MDW
11h 14m
2 stops
Delta Logo
1:49 pm - 10:40 pm
MDW
-
GTF
9h 51m
2 stops
$819Delta
Sat, Jun 27 - Sat, Jul 4
Delta Logo
5:40 am - 5:54 pm
GTF
-
MDW
11h 14m
2 stops
Delta Logo
9:54 am - 5:44 pm
MDW
-
GTF
8h 50m
2 stops
$999Delta
Sat, Jun 27 - Thu, Jul 2
Delta Logo
5:40 am - 6:33 pm
GTF
-
MDW
11h 53m
2 stops
Delta Logo
1:51 pm - 10:38 pm
MDW
-
GTF
9h 47m
2 stops
$1,009Delta
Mon, Aug 3 - Sat, Aug 8

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Alaska Airlines flights from Great Falls to Chicago

Our best Alaska Airlines deals on Great Falls to Chicago flight tickets
Alaska Airlines
Sep 17
GTF5:19 pmGreat Falls
12h 01m
1 stop
ORD6:20 amChicago O'Hare Intl
Sep 23
ORD3:52 pmChicago O'Hare Intl
25h 47m
1 stop
GTF4:39 pmGreat Falls
$318
Alaska Airlines
Aug 8
GTF5:09 pmGreat Falls
12h 11m
1 stop
ORD6:20 amChicago O'Hare Intl
Aug 15
ORD6:00 amChicago O'Hare Intl
11h 29m
1 stop
GTF4:29 pmGreat Falls
$373
Alaska Airlines
Sep 17
GTF5:19 pmGreat Falls
12h 01m
1 stop
ORD6:20 amChicago O'Hare Intl
Sep 24
ORD8:00 amChicago O'Hare Intl
9h 39m
1 stop
GTF4:39 pmGreat Falls
$378

United Airlines flights from Great Falls to Chicago

Our best United Airlines deals on Great Falls to Chicago flight tickets
United Airlines
Aug 29
GTF2:25 pmGreat Falls
7h 21m
1 stop
ORD10:46 pmChicago O'Hare Intl
Sep 1
ORD2:42 pmChicago O'Hare Intl
7h 30m
1 stop
GTF9:12 pmGreat Falls
$408
United Airlines
Jun 27
GTF2:37 pmGreat Falls
7h 12m
1 stop
ORD10:49 pmChicago O'Hare Intl
Jul 4
ORD9:00 amChicago O'Hare Intl
3h 46m
GTF11:46 amGreat Falls
$428
United Airlines
Jul 4
GTF12:30 pmGreat Falls
3h 18m
ORD4:48 pmChicago O'Hare Intl
Jul 9
ORD8:59 amChicago O'Hare Intl
3h 46m
GTF11:45 amGreat Falls
$444

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 June 14, 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

Thu 9/17

5:19 pm-6:20 am

1 stop12h 01m

Chicago O'Hare Intl

Wed 9/23

3:52 pm-4:39 pm

1 stop25h 47m

$318

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 8/8

5:09 pm-6:20 am

1 stop12h 11m

Chicago O'Hare Intl

Sat 8/15

6:00 am-4:29 pm

1 stop11h 29m

$373

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 9/17

5:19 pm-6:20 am

1 stop12h 01m

Chicago O'Hare Intl

Thu 9/24

8:00 am-4:39 pm

1 stop9h 39m

$378

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 9/17

5:19 pm-8:15 pm

2 stops25h 56m

Chicago O'Hare Intl

Wed 9/23

1:03 pm-4:39 pm

1 stop28h 36m

$385

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 9/29

5:19 pm-6:20 am

1 stop12h 01m

Chicago O'Hare Intl

Sat 10/3

9:00 am-4:35 pm

1 stop8h 35m

$389
Quickest round-trip

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 7/4

1:20 pm-9:23 pm

1 stop7h 03m

Chicago O'Hare Intl

Fri 7/10

7:45 am-12:37 pm

1 stop5h 52m

$403

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 8/29

2:25 pm-10:46 pm

1 stop7h 21m

Chicago O'Hare Intl

Tue 9/1

2:42 pm-9:12 pm

1 stop7h 30m

$408

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

Sat 6/27

5:40 am-5:54 pm

2 stops11h 14m

Chicago Midway

Sat 7/4

1:49 pm-10:40 pm

2 stops9h 51m

$819

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

Sat 6/27

5:40 am-5:54 pm

2 stops11h 14m

Chicago Midway

Thu 7/2

9:54 am-5:44 pm

2 stops8h 50m

$999

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

Mon 8/3

5:40 am-6:33 pm

2 stops11h 53m

Chicago Midway

Sat 8/8

1:51 pm-10:38 pm

2 stops9h 47m

$1,009

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 is only 1 cabin class 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
8,403 reviews
Search Delta flights
United AirlinesPriceFrom $300Free CancellationRating
7.4
9,818 reviews
Search United Airlines flights

  • United Airlines Flights From Great Falls to Chicago

    United Airlines flies from Great Falls to Chicago around 1 time per week, with 9,820 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Great Falls to Chicago in the last 72 hours was $300 (round-trip), much lower than the average airfare cost of $591 for United Airlines flights on this route.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Portage
Benton Harbor
Saint Joseph
Lansing
Valparaiso
Schererville
Munster
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