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Cheap flights from Great Falls to Chicago from $170

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 11/13. 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.
Delta Logo
1:13 pm - 10:00 pm
GTF
-
ORD
7h 47m
1 stop
Delta Logo
7:35 am - 12:33 pm
ORD
-
GTF
5h 58m
1 stop
$328Delta
Fri, Oct 30 - Wed, Nov 4
Delta Logo
1:13 pm - 10:00 pm
GTF
-
ORD
7h 47m
1 stop
Delta Logo
8:05 am - 5:42 pm
ORD
-
GTF
10h 37m
2 stops
$334Delta
Fri, Oct 30 - Wed, Nov 4
United Airlines Logo
2:25 pm - 10:00 pm
GTF
-
ORD
6h 35m
1 stop
United Airlines Logo
5:55 am - 1:29 pm
ORD
-
GTF
8h 34m
1 stop
$350United Airlines
Thu, Aug 20 - Sun, Aug 23
Delta Logo
5:40 am - 6:59 pm
GTF
-
ORD
12h 19m
2 stops
Delta Logo
6:00 am - 12:28 pm
ORD
-
GTF
7h 28m
2 stops
$369Delta
Sat, Aug 22 - Sat, Aug 29
Delta Logo
1:08 pm - 9:33 pm
GTF
-
ORD
7h 25m
1 stop
Delta Logo
6:00 am - 12:28 pm
ORD
-
GTF
7h 28m
2 stops
$474Delta
Fri, Sep 4 - Mon, Sep 7
Delta Logo
1:13 pm - 11:51 pm
GTF
-
ORD
9h 38m
2 stops
Delta Logo
7:10 am - 5:42 pm
ORD
-
GTF
11h 32m
2 stops
$479Delta
Fri, Oct 30 - Wed, Nov 4
Delta Logo
5:40 am - 11:59 am
GTF
-
ORD
5h 19m
1 stop
Delta Logo
6:00 am - 12:28 pm
ORD
-
GTF
7h 28m
2 stops
$509Delta
Thu, Aug 20 - Sun, Aug 23
Alaska Airlines Logo
5:15 pm - 8:07 pm
GTF
-
ORD
25h 52m
2 stops
Alaska Airlines Logo
2:25 pm - 4:17 pm
ORD
-
GTF
26h 52m
2 stops
$547Alaska Airlines
Fri, Oct 30 - Wed, Nov 4
Alaska Airlines Logo
5:18 pm - 1:22 pm
GTF
-
ORD
19h 04m
2 stops
Alaska Airlines Logo
8:17 pm - 4:38 pm
ORD
-
GTF
21h 21m
2 stops
$575Alaska Airlines
Thu, Aug 20 - Sun, Aug 23
Alaska Airlines Logo
5:15 pm - 8:07 pm
GTF
-
ORD
25h 52m
2 stops
Alaska Airlines Logo
11:15 am - 4:35 pm
ORD
-
GTF
30h 20m
2 stops
$589Alaska Airlines
Thu, Oct 15 - Fri, Oct 23

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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
Oct 30
GTF5:15 pmGreat Falls
25h 52m
2 stops
ORD8:07 pmChicago O'Hare Intl
Nov 4
ORD2:25 pmChicago O'Hare Intl
26h 52m
2 stops
GTF4:17 pmGreat Falls
$547
Alaska Airlines
Aug 20
GTF5:18 pmGreat Falls
19h 04m
2 stops
ORD1:22 pmChicago O'Hare Intl
Aug 23
ORD8:17 pmChicago O'Hare Intl
21h 21m
2 stops
GTF4:38 pmGreat Falls
$575
Alaska Airlines
Oct 15
GTF5:15 pmGreat Falls
25h 52m
2 stops
ORD8:07 pmChicago O'Hare Intl
Oct 23
ORD11:15 amChicago O'Hare Intl
30h 20m
2 stops
GTF4:35 pmGreat Falls
$589

Delta flights from Great Falls to Chicago

Our best Delta deals on Great Falls to Chicago flight tickets
Delta
Oct 30
GTF1:13 pmGreat Falls
7h 47m
1 stop
ORD10:00 pmChicago O'Hare Intl
Nov 4
ORD7:35 amChicago O'Hare Intl
5h 58m
1 stop
GTF12:33 pmGreat Falls
$328
Delta
Oct 30
GTF1:13 pmGreat Falls
7h 47m
1 stop
ORD10:00 pmChicago O'Hare Intl
Nov 4
ORD8:05 amChicago O'Hare Intl
10h 37m
2 stops
GTF5:42 pmGreat Falls
$334
Delta
Aug 22
GTF5:40 amGreat Falls
12h 19m
2 stops
ORD6:59 pmChicago O'Hare Intl
Aug 29
ORD6:00 amChicago O'Hare Intl
7h 28m
2 stops
GTF12:28 pmGreat Falls
$369

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 July 26, 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

Fri 10/30

1:13 pm-10:00 pm

1 stop7h 47m

Chicago O'Hare Intl

Wed 11/4

7:35 am-12:33 pm

1 stop5h 58m

$328

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 10/30

1:13 pm-10:00 pm

1 stop7h 47m

Chicago O'Hare Intl

Wed 11/4

8:05 am-5:42 pm

2 stops10h 37m

$334

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 8/20

2:25 pm-10:00 pm

1 stop6h 35m

Chicago O'Hare Intl

Sun 8/23

5:55 am-1:29 pm

1 stop8h 34m

$350

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 8/22

5:40 am-6:59 pm

2 stops12h 19m

Chicago O'Hare Intl

Sat 8/29

6:00 am-12:28 pm

2 stops7h 28m

$369

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 9/4

1:08 pm-9:33 pm

1 stop7h 25m

Chicago O'Hare Intl

Mon 9/7

6:00 am-12:28 pm

2 stops7h 28m

$474

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 10/30

1:13 pm-11:51 pm

2 stops9h 38m

Chicago O'Hare Intl

Wed 11/4

7:10 am-5:42 pm

2 stops11h 32m

$479
Quickest round-trip

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 8/20

5:40 am-11:59 am

1 stop5h 19m

Chicago O'Hare Intl

Sun 8/23

6:00 am-12:28 pm

2 stops7h 28m

$509

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 10/30

5:15 pm-8:07 pm

2 stops25h 52m

Chicago O'Hare Intl

Wed 11/4

2:25 pm-4:17 pm

2 stops26h 52m

$547

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 8/20

5:18 pm-1:22 pm

2 stops19h 04m

Chicago O'Hare Intl

Sun 8/23

8:17 pm-4:38 pm

2 stops21h 21m

$575

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Thu 10/15

5:15 pm-8:07 pm

2 stops25h 52m

Chicago O'Hare Intl

Fri 10/23

11:15 am-4:35 pm

2 stops30h 20m

$589

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 day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Saturday when prices can be found for as low as $576. This is often the case because there is less demand to fly during this day of the week. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Great Falls to Chicago for around $603.

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 3 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

$448

Fastest flight time

3h 18m

Direct flights

None
The best one-way flight to Chicago from Great Falls in the past 72 hours is $448. The best round-trip flight deal from Great Falls to Chicago found on momondo in the last 72 hours is $478.
The fastest flight from Great Falls to Chicago takes 3h 18m
There are no direct flights from Great Falls to Chicago. Popular non-direct route for this connection is Great Falls Airport - Chicago O'Hare Intl Airport.
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 $270Free CancellationRating
7.8
8,487 reviews
Search Delta flights
United AirlinesPriceFrom $277Free CancellationRating
7.4
10,038 reviews
Search United Airlines flights

  • United Airlines Flights From Great Falls to Chicago

    United Airlines flies from Great Falls to Chicago around 4 times per week, with 10,039 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Great Falls to Chicago in the last 72 hours was $277 (round-trip), much lower than the average airfare cost of $581 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
Lansing
Saint Joseph
Valparaiso
Schererville
Munster
Chesterton
Monticello
Crown Point
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