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$137+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — GTF
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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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 October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$275
(Alaska Airlines)

One-way from

$137
(Delta)

Popular in

August

Cheapest in

January
Provider with most accurate pricing for Chicago (CHI)-Great Falls flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Great Falls flights.
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From Chicago (CHI) to Great Falls
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One-way flight from Chicago (CHI) to Great Falls
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Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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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 October 27, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/26. 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.
Tue 11/188:00 amORD - GTF
1 stop11h 10mAlaska Airlines
Sat 12/67:35 pmGTF - ORD
1 stop9h 46mAlaska Airlines
Deal found 10/26$275
This Delta deal was found by Cheapflights users on 10/26. 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 11/188:50 amORD - GTF
2 stops9h 40mDelta
Sat 12/66:10 pmGTF - ORD
2 stops13h 32mDelta
Deal found 10/26$287
This Alaska Airlines deal was found by Cheapflights users on 10/26. 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.
Sun 12/146:00 amORD - GTF
1 stop13h 55mAlaska Airlines
Sat 1/108:00 pmGTF - ORD
1 stop26h 55mAlaska Airlines
Deal found 10/26$380
This Delta deal was found by Cheapflights users on 10/26. 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 11/181:15 pmMDW - GTF
2 stops10h 15mDelta
Sat 12/61:12 pmGTF - MDW
2 stops9h 35mDelta
Deal found 10/26$393
This Delta deal was found by Cheapflights users on 10/27. 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 11/47:50 amORD - GTF
1 stop5h 38mDelta
Fri 11/71:08 pmGTF - ORD
1 stop7h 35mDelta
Deal found 10/27$428
This Delta deal was found by Cheapflights users on 10/26. 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.
Wed 10/297:50 amORD - GTF
1 stop5h 38mDelta
Sun 11/21:08 pmGTF - ORD
1 stop7h 35mDelta
Deal found 10/26$469
This Delta deal was found by Cheapflights users on 10/27. 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.
Wed 10/291:08 pmMDW - GTF
2 stops10h 58mDelta
Sun 11/25:30 amGTF - MDW
2 stops9h 39mDelta
Deal found 10/27$730
This Delta deal was found by Cheapflights users on 10/27. 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 11/49:20 amMDW - GTF
2 stops9h 09mDelta
Fri 11/75:30 amGTF - MDW
2 stops11h 55mDelta
Deal found 10/27$989

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 October 27, 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 11/18

8:00 am-6:10 pm

1 stop11h 10m

Great Falls

Sat 12/6

7:35 pm-6:21 am

1 stop9h 46m

$275

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 11/18

8:50 am-5:30 pm

2 stops9h 40m

Great Falls

Sat 12/6

6:10 pm-8:42 am

2 stops13h 32m

$287

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sun 12/14

6:00 am-6:55 pm

1 stop13h 55m

Great Falls

Sat 1/10

8:00 pm-11:55 pm

1 stop26h 55m

$380

ChicagoGreat Falls

MDW - GTF

MDWGTF

Chicago Midway

Tue 11/18

1:15 pm-10:30 pm

2 stops10h 15m

Great Falls

Sat 12/6

1:12 pm-11:47 pm

2 stops9h 35m

$393

ChicagoGreat Falls

MDW - GTF

MDWGTF

Chicago Midway

Fri 4/10

1:00 pm-10:53 pm

2 stops10h 53m

Great Falls

Tue 4/14

6:20 pm-9:51 am

2 stops14h 31m

$469

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 11/21

8:00 pm-10:39 pm

2 stops27h 39m

Great Falls

Sat 11/29

6:20 am-3:20 am

1 stop20h 00m

$634

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 11/21

6:45 am-5:30 pm

2 stops11h 45m

Great Falls

Sat 11/29

6:10 pm-8:41 am

2 stops13h 31m

$1,009

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Mon 12/8

7:20 am-12:31 pm

1 stop6h 11m

$137

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 11/25

8:39 pm-2:02 pm

1 stop18h 23m

$163

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sun 12/7

7:20 am-12:31 pm

1 stop6h 11m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 13 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 October.
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 October 27, 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.

How much does it cost to fly round-trip from Chicago to Great Falls?

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 October 27, 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
7,996 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,996 reviews
Delta
7.9
Good
7,996 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,997 reviews
Delta
7.9
Good
7,996 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 9h 40m. 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 16% 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?

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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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$328Average$541FlexibilityNo cancel feeOn-time69%

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