HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Great Falls

$159+ Cheap flights from Chicago (CHI) to Great Falls (GTF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — GTF
Dec 31 — Jan 71
Wed 12/31
Wed 1/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Great Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Chicago to Great Falls

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Great Falls (GTF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$260
(Delta)

One-way from

$159
(Delta)

Popular in

August

Cheapest in

December

Average price

$248
Provider with most accurate pricing for Chicago (CHI)-Great Falls flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Great Falls flights.
Search Deals
From Chicago (CHI) to Great Falls
Search Deals
One-way flight from Chicago (CHI) to Great Falls
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Find flight deals from Chicago to Great Falls

Cheapest flights from Chicago to Great Falls
Explore the most affordable flight options available from Chicago to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 1, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1512:59 pmORD - GTF
1 stop9h 36mMultiple Airlines
Fri 12/1910:25 pmGTF - ORD
2 stops17h 57mMultiple Airlines
Deal found 11/30$452
This Delta deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:20 amORD - GTF
1 stop6h 11mDelta
Tue 12/26:10 pmGTF - ORD
2 stops13h 29mDelta
Deal found 12/1$536
This United Airlines deal was found by Cheapflights users on 11/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/157:10 amORD - GTF
1 stop7h 29mUnited Airlines
Fri 12/192:35 pmGTF - ORD
1 stop8h 24mUnited Airlines
Deal found 11/30$586
This Alaska Airlines deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:06 pmORD - GTF
2 stops29h 35mAlaska Airlines
Mon 1/57:21 pmGTF - ORD
1 stop10h 08mAlaska Airlines
Deal found 11/29$593
This United Airlines deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:08 pmORD - GTF
1 stop27h 38mUnited Airlines
Mon 1/52:35 pmGTF - ORD
1 stop8h 24mUnited Airlines
Deal found 11/29$626
This Alaska Airlines deal was found by Cheapflights users on 11/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/153:05 pmORD - GTF
2 stops28h 50mAlaska Airlines
Fri 12/197:21 pmGTF - ORD
2 stops32h 42mAlaska Airlines
Deal found 11/30$863
This Delta deal was found by Cheapflights users on 11/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/159:59 amMDW - GTF
2 stops8h 29mDelta
Fri 12/195:30 amGTF - MDW
2 stops11h 30mDelta
Deal found 11/30$1,159
This Delta deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:20 amORD - GTF
1 stop6h 12mDelta
Mon 12/16:10 pmGTF - ORD
2 stops13h 29mDelta
Deal found 11/29$1,196

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Great Falls 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, Cheapflights users made 2,558,603 searches. Data last updated December 1, 2025.
Use the filters below to find and compare flights from Chicago to Great Falls that are best for you.

Fly from

Chicago

Fly to

Great Falls

Route

Depart

Return

Price

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 1/13

5:30 am-5:30 pm

2 stops13h 00m

Great Falls

Sat 1/17

5:30 am-12:44 pm

1 stop6h 14m

$270

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Mon 1/12

1:55 pm-10:30 pm

2 stops9h 35m

Great Falls

Wed 1/21

1:12 pm-9:52 pm

1 stop7h 40m

$296

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 1/13

8:00 am-5:19 pm

1 stop10h 19m

Great Falls

Wed 1/21

5:59 pm-2:38 pm

1 stop19h 39m

$303

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Mon 1/12

1:55 pm-10:30 pm

2 stops9h 35m

Great Falls

Thu 1/15

1:15 pm-9:52 pm

1 stop7h 37m

$306

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Mon 1/12

1:55 pm-10:30 pm

2 stops9h 35m

Great Falls

Sat 1/17

1:15 pm-9:52 pm

1 stop7h 37m

$306

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 1/29

2:20 pm-12:32 pm

2 stops23h 12m

Great Falls

Mon 2/2

6:15 pm-10:05 am

2 stops14h 50m

$309

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 1/14

8:00 am-5:19 pm

1 stop10h 19m

Great Falls

Fri 1/16

5:59 pm-11:50 pm

1 stop28h 51m

$313

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 1/29

8:00 am-5:19 pm

1 stop10h 19m

Great Falls

Mon 2/2

5:59 pm-11:50 pm

1 stop28h 51m

$313

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Mon 1/12

8:00 am-5:19 pm

1 stop10h 19m

Great Falls

Wed 1/21

5:59 pm-5:10 pm

1 stop22h 11m

$313

ChicagoGreat Falls

MDW - GTF

MDWGTF

Chicago Midway

Thu 1/29

6:35 pm-12:32 pm

2 stops18h 57m

Great Falls

Mon 2/2

6:15 pm-9:53 am

2 stops14h 38m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/29

Showing 1-10 of 16 results
1
2

Compare providers for flights from Chicago to Great Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Great Falls in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Great Falls flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago-Great Falls flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chicago-Great Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Great Falls flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Great Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Great Falls

Have a flexible travel schedule? Discover the best time to fly to Great Falls from Chicago with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Great Falls

What is the cheapest time of day to fly from CHI to GTF?

Find hourly flight availability from Chicago to Great Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 1, 2025.

One of the essential ways to save on airfare from Chicago to Great Falls is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 12% on airfare.

Reviews of airlines servicing Great Falls

Get insights into the airlines that provide service to Great Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Great Falls. Reviews last updated December 1, 2025.
Peruse reviews from past customers who have flown with Delta and United Airlines from Chicago to Great Falls to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,010 reviews

Food

7.3

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,010 reviews
Delta
7.9
Good
8,010 reviews

Food

7.3

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,065 reviews
Delta
7.9
Good
8,010 reviews

Food

7.3

Comfort

7.9

Overall

7.9

Crew

8.5

Boarding

8.1

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Great Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Great Falls from Chicago?

    If you book a flight to Great Falls from Chicago, you will be flying to Great Falls, which is the city’s only airport. Great Falls (GTF) is located 3.5 mi from the center of Great Falls. There are 0 flights from Chicago to Great Falls per day from 1 airline.

  • How long is the flight from Chicago to Great Falls?

    Departing from Chicago to Great Falls will take you 10h 19m. Chicago and Great Falls are separated by a distance of 1207 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Chicago to Great Falls round-trip?

    Flying on United Airlines is currently your cheapest option to Great Falls, with prices starting at $328. United Airlines is currently priced 14% below the average price you’ll pay for this route.

  • Can I find deals for flights from Chicago to Great Falls that include hotel bookings?

    Yes. In addition to deals on Chicago to Great Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Great Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Great Falls.

  • Can I find deals for business class flights from Chicago to Great Falls?

    Yes. Cheapflights offers flight deals from Chicago to Great Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Great Falls?

Book flights to Great Falls if you plan to visit one of these locations
Shelby

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to Great Falls

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Bozeman flights
O'Hare Intl to Kalispell flights
Midway to Bozeman flights
O'Hare Intl to Missoula flights
Midway to Kalispell flights
O'Hare Intl to Billings flights
St. Louis to Bozeman flights
Moline to Bozeman flights
Peoria to Bozeman flights
St. Louis to Missoula flights
Peoria to Missoula flights
Midway to Missoula flights
O'Hare Intl to Great Falls flights
St. Louis to Billings flights
O'Hare Intl to Helena flights
St. Louis to Cody flights
St. Louis to Kalispell flights
Midway to Billings flights
St. Louis to Great Falls flights
Moline to Kalispell flights
O'Hare Intl to Butte flights
Peoria to Kalispell flights
Peoria to Billings flights
Midway to Helena flights
O'Hare Intl to Cody flights
Moline to Missoula flights
O'Hare Intl to West Yellowstone flights
Midway to Great Falls flights
St. Louis to Helena flights
Bloomington to Bozeman flights
Peoria to Helena flights
St. Louis to Butte flights
Bloomington to Kalispell flights
Moline to Billings flights
Moline to Cody flights
Bloomington to Great Falls flights
Bloomington to Helena flights
Bloomington to Missoula flights
Champaign to Bozeman flights
Midway to West Yellowstone flights
Springfield to Bozeman flights
St. Louis to West Yellowstone flights
Champaign to Billings flights
Dubuque to Bozeman flights
Springfield to Missoula flights

Top airline flying from Chicago to Great Falls

Discover the top airline that operate flights from Chicago to Great Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$328Average$573FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.