What is the cheapest airline that flies from Great Falls to Chicago?

Delta is the most popular carrier operating from Great Falls to Chicago

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?

As of January 2026, there is 1 operator available to choose from 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.

$254 Cheap Flights from Great Falls to Chicago in 2026

1 adult

0 bags

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Find the cheapest flights from Great Falls to Chicago

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:59 pm - 11:50 pm

GTF

ORD

28h 51m1 stop

8:00 am - 5:19 pm

ORD

GTF

10h 19m1 stop

$323Alaska Airlines

ven., janv. 30 - lun., févr. 2

1:15 pm - 9:52 pm

GTF

ORD

7h 37m1 stop

1:58 pm - 10:30 pm

ORD

GTF

9h 32m2 stops

$392Delta

jeu., janv. 15 - lun., janv. 19

2:29 pm - 11:48 am

GTF

ORD

20h 19m2 stops

2:36 pm - 9:53 pm

ORD

GTF

8h 17m1 stop

$561United Airlines

ven., janv. 30 - lun., févr. 2

5:59 pm - 2:38 pm

GTF

ORD

19h 39m1 stop

6:06 pm - 5:19 pm

ORD

GTF

24h 13m1 stop

$663Alaska Airlines

jeu., janv. 15 - lun., janv. 19

6:10 am - 4:33 pm

GTF

ORD

9h 23m2 stops

12:50 pm - 9:53 pm

ORD

GTF

10h 03m2 stops

$978United Airlines

jeu., janv. 15 - lun., janv. 19

5:30 am - 6:32 pm

GTF

MDW

12h 02m2 stops

1:26 pm - 10:30 pm

MDW

GTF

10h 04m2 stops

$999Delta

jeu., janv. 15 - lun., janv. 19

Alaska Airlines flights from Great Falls to Chicago

Our best Alaska Airlines deals on Great Falls to Chicago flight tickets

Alaska Airlines

Jan 30

GTF5:59 pmGreat Falls

28h 51m

1 stop

ORD11:50 pmChicago O'Hare Intl

Feb 2

ORD8:00 amChicago O'Hare Intl

10h 19m

1 stop

GTF5:19 pmGreat Falls

$323

Find similar

Alaska Airlines

Jan 15

GTF5:59 pmGreat Falls

19h 39m

1 stop

ORD2:38 pmChicago O'Hare Intl

Jan 19

ORD6:06 pmChicago O'Hare Intl

24h 13m

1 stop

GTF5:19 pmGreat Falls

$663

Find similar

United Airlines flights from Great Falls to Chicago

Our best United Airlines deals on Great Falls to Chicago flight tickets

United Airlines

Jan 30

GTF2:29 pmGreat Falls

21h 46m

2 stops

ORD1:15 pmChicago O'Hare Intl

Feb 2

ORD2:36 pmChicago O'Hare Intl

8h 17m

1 stop

GTF9:53 pmGreat Falls

$561

Find similar

United Airlines

Jan 15

GTF6:10 amGreat Falls

9h 23m

2 stops

ORD4:33 pmChicago O'Hare Intl

Jan 19

ORD12:50 pmChicago O'Hare Intl

10h 03m

2 stops

GTF9:53 pmGreat Falls

$978

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

ven. 1/30

5:59 pm-11:50 pm

1 stop28h 51m

Chicago O'Hare Intl

lun. 2/2

8:00 am-5:19 pm

1 stop10h 19m

$323

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

jeu. 1/15

1:15 pm-9:52 pm

1 stop7h 37m

Chicago O'Hare Intl

lun. 1/19

1:58 pm-10:30 pm

2 stops9h 32m

$392

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

ven. 1/30

2:29 pm-11:48 am

2 stops20h 19m

Chicago O'Hare Intl

lun. 2/2

2:36 pm-9:53 pm

1 stop8h 17m

$561

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

jeu. 1/15

5:59 pm-2:38 pm

1 stop19h 39m

Chicago O'Hare Intl

lun. 1/19

6:06 pm-5:19 pm

1 stop24h 13m

$663

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

jeu. 1/15

6:10 am-4:33 pm

2 stops9h 23m

Chicago O'Hare Intl

lun. 1/19

12:50 pm-9:53 pm

2 stops10h 03m

$978

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

jeu. 1/15

5:30 am-6:32 pm

2 stops12h 02m

Chicago Midway

lun. 1/19

1:26 pm-10:30 pm

2 stops10h 04m

$999

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

mer. 2/25

1:15 pm-9:52 pm

1 stop7h 37m

$127

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Prices

Airlines

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

Fastest flight time	5h 46m
Direct flights	None

The fastest flight from Great Falls to Chicago takes 5h 46m

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 5h 46m.
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?
As of January 2026, there is 1 operator available to choose from 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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Great Falls to Chicago is Delta (62% of total bookings). The next most popular airline is United Airlines (38%).

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 Airlines	PriceFrom $277	Free Cancellation	Rating 7.4 9,132 reviews		Search United Airlines flights

Merrillville

New Buffalo

Hammond

Benton Harbor

Saint Joseph

Portage

Lansing

Schererville

Valparaiso

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.