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Cheap flights from Great Falls to Chicago from $127

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 4/21. 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
1:12 pm - 9:52 pmGTF-ORD
7h 40m1 stop
Delta Logo
2:20 pm - 12:32 pmORD-GTF
23h 12m2 stops
$294Delta
Find Deal
Fri, Jan 23 - Mon, Jan 26
Delta Logo
1:12 pm - 11:53 pmGTF-ORD
9h 41m2 stops
Delta Logo
2:20 pm - 12:32 pmORD-GTF
23h 12m2 stops
$323Delta
Find Deal
Fri, Jan 23 - Mon, Jan 26
Alaska Airlines Logo
4:00 pm - 11:58 pmGTF-ORD
6h 58m1 stop
Alaska Airlines Logo
10:00 am - 5:20 pmORD-GTF
8h 20m1 stop
$361Alaska Airlines
Find Deal
Tue, Apr 21 - Fri, May 1
Alaska Airlines Logo
4:00 pm - 11:58 pmGTF-ORD
6h 58m1 stop
Alaska Airlines Logo
10:00 am - 5:20 pmORD-GTF
8h 20m1 stop
$371Alaska Airlines
Find Deal
Sat, Apr 18 - Fri, May 1
Delta Logo
1:10 pm - 9:58 pmGTF-ORD
7h 48m1 stop
Delta Logo
7:15 am - 12:23 pmORD-GTF
6h 08m1 stop
$400Delta
Find Deal
Fri, Apr 17 - Fri, May 1
Delta Logo
5:30 am - 4:48 pmGTF-ORD
10h 18m2 stops
Delta Logo
7:15 am - 12:23 pmORD-GTF
6h 08m1 stop
$428Delta
Find Deal
Sat, Apr 18 - Fri, May 1
Delta Logo
1:10 pm - 9:58 pmGTF-ORD
7h 48m1 stop
Delta Logo
9:30 am - 10:44 pmORD-GTF
14h 14m2 stops
$501Delta
Find Deal
Tue, Apr 21 - Fri, May 1
Delta Logo
1:10 pm - 9:58 pmGTF-ORD
7h 48m1 stop
Delta Logo
9:30 am - 10:44 pmORD-GTF
14h 14m2 stops
$511Delta
Find Deal
Fri, Apr 17 - Fri, May 1
Delta Logo
5:30 am - 2:58 pmGTF-ORD
8h 28m2 stops
Delta Logo
9:30 am - 10:44 pmORD-GTF
14h 14m2 stops
$538Delta
Find Deal
Sat, Apr 18 - Fri, May 1
United Airlines Logo
2:35 pm - 11:59 pmGTF-ORD
8h 24m1 stop
United Airlines Logo
7:10 am - 1:39 pmORD-GTF
7h 29m1 stop
$572United Airlines
Find Deal
Fri, Dec 12 - Tue, Dec 16

Delta flights from Great Falls to Chicago

Our best Delta deals on Great Falls to Chicago flight tickets
Delta
Jan 23
GTF1:12 pmGreat Falls
7h 40m
1 stop
ORD9:52 pmChicago O'Hare Intl
Jan 26
ORD2:20 pmChicago O'Hare Intl
23h 12m
2 stops
GTF12:32 pmGreat Falls
$294
Find similar
Delta
Apr 17
GTF1:10 pmGreat Falls
7h 48m
1 stop
ORD9:58 pmChicago O'Hare Intl
May 1
ORD7:15 amChicago O'Hare Intl
6h 08m
1 stop
GTF12:23 pmGreat Falls
$400
Find similar
Delta
Apr 18
GTF5:30 amGreat Falls
10h 18m
2 stops
ORD4:48 pmChicago O'Hare Intl
May 1
ORD7:15 amChicago O'Hare Intl
6h 08m
1 stop
GTF12:23 pmGreat Falls
$428
Find similar

Alaska Airlines flights from Great Falls to Chicago

Our best Alaska Airlines deals on Great Falls to Chicago flight tickets
Alaska Airlines
Jan 23
GTF5:59 pmGreat Falls
28h 51m
1 stop
ORD11:50 pmChicago O'Hare Intl
Jan 26
ORD8:00 amChicago O'Hare Intl
10h 19m
1 stop
GTF5:19 pmGreat Falls
$323
Find similar
Alaska Airlines
Apr 21
GTF4:00 pmGreat Falls
6h 58m
1 stop
ORD11:58 pmChicago O'Hare Intl
May 1
ORD10:00 amChicago O'Hare Intl
8h 20m
1 stop
GTF5:20 pmGreat Falls
$361
Find similar
Alaska Airlines
Apr 18
GTF4:00 pmGreat Falls
6h 58m
1 stop
ORD11:58 pmChicago O'Hare Intl
May 1
ORD10:00 amChicago O'Hare Intl
8h 20m
1 stop
GTF5:20 pmGreat Falls
$371
Find similar

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 November 29, 2025.
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

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 1/23

1:12 pm-9:52 pm

1 stop7h 40m

Chicago O'Hare Intl

Mon 1/26

2:20 pm-12:32 pm

2 stops23h 12m

$294

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 1/23

1:12 pm-11:53 pm

2 stops9h 41m

Chicago O'Hare Intl

Mon 1/26

2:20 pm-12:32 pm

2 stops23h 12m

$323

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 4/21

4:00 pm-11:58 pm

1 stop6h 58m

Chicago O'Hare Intl

Fri 5/1

10:00 am-5:20 pm

1 stop8h 20m

$361

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 4/18

4:00 pm-11:58 pm

1 stop6h 58m

Chicago O'Hare Intl

Fri 5/1

10:00 am-5:20 pm

1 stop8h 20m

$371

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 4/17

1:10 pm-9:58 pm

1 stop7h 48m

Chicago O'Hare Intl

Fri 5/1

7:15 am-12:23 pm

1 stop6h 08m

$400

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 4/18

5:30 am-4:48 pm

2 stops10h 18m

Chicago O'Hare Intl

Fri 5/1

7:15 am-12:23 pm

1 stop6h 08m

$428

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 4/21

1:10 pm-9:58 pm

1 stop7h 48m

Chicago O'Hare Intl

Fri 5/1

9:30 am-10:44 pm

2 stops14h 14m

$501

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 4/17

1:10 pm-9:58 pm

1 stop7h 48m

Chicago O'Hare Intl

Fri 5/1

9:30 am-10:44 pm

2 stops14h 14m

$511

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 4/18

5:30 am-2:58 pm

2 stops8h 28m

Chicago O'Hare Intl

Fri 5/1

9:30 am-10:44 pm

2 stops14h 14m

$538

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 12/12

2:35 pm-11:59 pm

1 stop8h 24m

Chicago O'Hare Intl

Tue 12/16

7:10 am-1:39 pm

1 stop7h 29m

$572

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 day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Tuesday when prices can be found for as low as $299. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Great Falls to Chicago for around $661.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the afternoon. Flights from Great Falls to Chicago during this time can be as low as $349. In contrast, the most expensive time of day to depart to Chicago is in the morning when prices are around $660.

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 42% 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

Fastest flight time

5h 51m

Direct flights

None
The fastest flight from Great Falls to Chicago takes 5h 51m
There are no direct flights from Great Falls to Chicago. There are no popular flight routes from Great Falls to Chicago.
Search flight deals

  • 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 6h 58m.

  • 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 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
United AirlinesPriceFrom $277Free CancellationRating
7.4
9,058 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
Benton Harbor
Saint Joseph
Portage
Lansing
Schererville
Valparaiso
Crown Point
Munster
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