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Cheap flights from Great Falls to Chicago from $122

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 3/5. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:05 pm - 9:34 pm
GTF
-
ORD
7h 29m
1 stop
Delta Logo
6:15 am - 5:42 pm
ORD
-
GTF
12h 27m
2 stops
$250Delta
jue., mar. 19 - mié., mar. 25
United Airlines Logo
2:30 pm - 11:52 pm
GTF
-
ORD
8h 22m
1 stop
United Airlines Logo
7:00 am - 1:33 pm
ORD
-
GTF
7h 33m
1 stop
$258United Airlines
vie., mar. 20 - mar., mar. 24
United Airlines Logo
2:30 pm - 9:29 pm
GTF
-
ORD
5h 59m
1 stop
United Airlines Logo
7:00 am - 1:33 pm
ORD
-
GTF
7h 33m
1 stop
$280United Airlines
jue., mar. 19 - mié., mar. 25
United Airlines Logo
2:29 pm - 10:44 pm
GTF
-
ORD
7h 15m
1 stop
United Airlines Logo
7:00 am - 1:33 pm
ORD
-
GTF
7h 33m
1 stop
$324United Airlines
mar., jun. 2 - mar., jun. 16
Delta Logo
1:15 pm - 9:52 pm
GTF
-
ORD
7h 37m
1 stop
Delta Logo
7:15 am - 12:30 pm
ORD
-
GTF
6h 15m
1 stop
$373Delta
vie., feb. 20 - vie., feb. 27
Delta Logo
1:15 pm - 9:52 pm
GTF
-
ORD
7h 37m
1 stop
Delta Logo
7:15 am - 12:30 pm
ORD
-
GTF
6h 15m
1 stop
$396Delta
vie., feb. 27 - lun., mar. 2
Delta Logo
6:20 pm - 7:26 am
GTF
-
ORD
12h 06m
2 stops
Delta Logo
7:15 am - 12:23 pm
ORD
-
GTF
6h 08m
1 stop
$402Delta
vie., jul. 24 - lun., jul. 27
Alaska Airlines Logo
4:57 pm - 1:11 pm
GTF
-
ORD
19h 14m
2 stops
Alaska Airlines Logo
5:29 pm - 4:17 pm
ORD
-
GTF
23h 48m
1 stop
$412Alaska Airlines
vie., feb. 27 - lun., mar. 2
United Airlines Logo
2:29 pm - 9:15 pm
GTF
-
ORD
5h 46m
1 stop
United Airlines Logo
7:10 am - 1:43 pm
ORD
-
GTF
7h 33m
1 stop
$413United Airlines
mié., feb. 11 - dom., feb. 15
Alaska Airlines Logo
4:57 pm - 11:56 pm
GTF
-
ORD
29h 59m
1 stop
Alaska Airlines Logo
7:00 am - 4:17 pm
ORD
-
GTF
10h 17m
1 stop
$415Alaska Airlines
mar., feb. 17 - lun., feb. 23

Alaska Airlines flights from Great Falls to Chicago O'Hare Intl Airport

Our best Alaska Airlines deals on Great Falls to Chicago O'Hare Intl Airport flight tickets
Alaska Airlines
Feb 27
GTF4:57 pmGreat Falls
19h 14m
2 stops
ORD1:11 pmChicago O'Hare Intl
Mar 2
ORD5:29 pmChicago O'Hare Intl
23h 48m
1 stop
GTF4:17 pmGreat Falls
$412
Alaska Airlines
Feb 17
GTF4:57 pmGreat Falls
29h 59m
1 stop
ORD11:56 pmChicago O'Hare Intl
Feb 23
ORD7:00 amChicago O'Hare Intl
10h 17m
1 stop
GTF4:17 pmGreat Falls
$415
Alaska Airlines
Feb 20
GTF4:57 pmGreat Falls
19h 14m
2 stops
ORD1:11 pmChicago O'Hare Intl
Feb 27
ORD3:54 pmChicago O'Hare Intl
26h 54m
1 stop
GTF5:48 pmGreat Falls
$432

Delta flights from Great Falls to Chicago O'Hare Intl Airport

Our best Delta deals on Great Falls to Chicago O'Hare Intl Airport flight tickets
Delta
Mar 19
GTF1:05 pmGreat Falls
7h 29m
1 stop
ORD9:34 pmChicago O'Hare Intl
Mar 25
ORD6:15 amChicago O'Hare Intl
12h 27m
2 stops
GTF5:42 pmGreat Falls
$250
Delta
Feb 20
GTF1:15 pmGreat Falls
7h 37m
1 stop
ORD9:52 pmChicago O'Hare Intl
Feb 27
ORD7:15 amChicago O'Hare Intl
6h 15m
1 stop
GTF12:30 pmGreat Falls
$373
Delta
Feb 27
GTF1:15 pmGreat Falls
7h 37m
1 stop
ORD9:52 pmChicago O'Hare Intl
Mar 2
ORD7:15 amChicago O'Hare Intl
6h 15m
1 stop
GTF12:30 pmGreat Falls
$396

momondo Fare Finder

 
Customize your flight search to find flights from Great Falls to Chicago O'Hare Intl Airport 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 enero 29, 2026.
Use the filters below to find and compare flights from Great Falls to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

jue. 3/19

1:05 pm-9:34 pm

1 stop7h 29m

Chicago O'Hare Intl

mié. 3/25

6:15 am-5:42 pm

2 stops12h 27m

$250

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

vie. 3/20

2:30 pm-11:52 pm

1 stop8h 22m

Chicago O'Hare Intl

mar. 3/24

7:00 am-1:33 pm

1 stop7h 33m

$258

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

jue. 3/19

2:30 pm-9:29 pm

1 stop5h 59m

Chicago O'Hare Intl

mié. 3/25

7:00 am-1:33 pm

1 stop7h 33m

$280

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

mar. 6/2

2:29 pm-10:44 pm

1 stop7h 15m

Chicago O'Hare Intl

mar. 6/16

7:00 am-1:33 pm

1 stop7h 33m

$324

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

vie. 2/20

1:15 pm-9:52 pm

1 stop7h 37m

Chicago O'Hare Intl

vie. 2/27

7:15 am-12:30 pm

1 stop6h 15m

$373

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

vie. 2/27

1:15 pm-9:52 pm

1 stop7h 37m

Chicago O'Hare Intl

lun. 3/2

7:15 am-12:30 pm

1 stop6h 15m

$396

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

vie. 7/24

6:20 pm-7:26 am

2 stops12h 06m

Chicago O'Hare Intl

lun. 7/27

7:15 am-12:23 pm

1 stop6h 08m

$402

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

vie. 2/27

4:57 pm-1:11 pm

2 stops19h 14m

Chicago O'Hare Intl

lun. 3/2

5:29 pm-4:17 pm

1 stop23h 48m

$412

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

mié. 2/11

2:29 pm-9:15 pm

1 stop5h 46m

Chicago O'Hare Intl

dom. 2/15

7:10 am-1:43 pm

1 stop7h 33m

$413

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

mar. 2/17

4:57 pm-11:56 pm

1 stop29h 59m

Chicago O'Hare Intl

lun. 2/23

7:00 am-4:17 pm

1 stop10h 17m

$415

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Great Falls to Chicago O'Hare Intl Airport

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 Great Falls to Chicago O'Hare Intl flight route?

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

What cabin class options are available on Great Falls to Chicago O'Hare Intl flights?

There are 3 cabin classes available to choose from on Great Falls to Chicago O'Hare Intl 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 O'Hare Intl Airport flights?

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

When to book flights from Great Falls to Chicago O'Hare Intl Airport

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

Cheap Great Falls to Chicago O'Hare Intl Airport (GTF to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Great Falls to Chicago O'Hare Intl Airport

Best Price Found

$593

Fastest flight time

5h 48m

Direct flights

None
The best flight deal from Great Falls to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $593
The fastest flight from Great Falls to Chicago O'Hare Intl Airport takes 5h 48m
There are no direct flights from Great Falls to Chicago O'Hare Intl Airport. There are no popular flight routes from Great Falls to Chicago O'Hare Intl Airport.
Search flight deals

  • How far is Great Falls to Chicago O'Hare Intl by plane?

    There are 1203.7 mi between Great Falls and Chicago O'Hare Intl. Flights usually cover this in 5h 48m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Great Falls Airport to Chicago O'Hare Intl Airport are updated daily.

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

  • How old do you have to be to fly from Great Falls Airport to Chicago O'Hare Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Great Falls Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

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

  • What is the most popular airline from Great Falls to Chicago O'Hare Intl Airport?

Best airlines flying from Great Falls to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Great Falls to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $277Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Schaumburg
South Haven
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Merrillville
Gurnee
Naperville
Rosemont
New Buffalo
Kenosha
Joliet
Oak Brook
Orland Park
Racine
Hammond
Janesville
Tinley Park
Elgin
Aurora
South Holland

Why use momondo?

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

It is quick and easy to find Great Falls to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

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

momondo does allow users to show only those flights to Chicago from Great Falls which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Chicago from Great Falls. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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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