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Great Falls

$210+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — GTF
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$265
(United Airlines)

One-way from

$210
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$338
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. 1% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 10/127:10 amORD - GTF
1 stop7h 16mUnited Airlines
Fri 10/172:31 pmGTF - ORD
1 stop5h 59mUnited Airlines
Deal found 9/14$289
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/12:53 pmORD - GTF
1 stop7h 18mUnited Airlines
Sun 10/52:31 pmGTF - ORD
1 stop8h 28mUnited Airlines
Deal found 9/16$302
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sun 10/127:10 amORD - GTF
1 stop7h 16mUnited Airlines
Mon 10/202:31 pmGTF - ORD
1 stop8h 28mUnited Airlines
Deal found 9/16$314
This Delta deal was found by Cheapflights users on 9/15. 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 12/37:20 amORD - GTF
1 stop6h 11mDelta
Sun 12/71:12 pmGTF - ORD
1 stop7h 12mDelta
Deal found 9/15$321
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 10/127:10 amORD - GTF
1 stop7h 16mUnited Airlines
Thu 10/162:31 pmGTF - ORD
1 stop8h 28mUnited Airlines
Deal found 9/14$329
This Delta deal was found by Cheapflights users on 9/16. 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 10/15:30 amORD - GTF
2 stops12h 57mDelta
Sun 10/55:40 amGTF - ORD
1 stop5h 10mDelta
Deal found 9/16$424
This United Airlines deal was found by Cheapflights users on 9/16. 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 9/292:17 pmORD - GTF
1 stop7h 54mUnited Airlines
Thu 10/22:31 pmGTF - ORD
1 stop8h 28mUnited Airlines
Deal found 9/16$442
This Delta deal was found by Cheapflights users on 9/16. 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.
Sun 10/127:50 amORD - GTF
1 stop5h 38mDelta
Mon 10/206:09 pmGTF - ORD
2 stops13h 23mDelta
Deal found 9/16$459
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 9/287:10 amORD - GTF
1 stop7h 16mUnited Airlines
Wed 10/12:31 pmGTF - ORD
1 stop5h 59mUnited Airlines
Deal found 9/15$479
This Delta deal was found by Cheapflights users on 9/16. 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 10/16:00 amMDW - GTF
2 stops12h 27mDelta
Sun 10/55:40 amGTF - MDW
2 stops11h 55mDelta
Deal found 9/16$989
This Delta deal was found by Cheapflights users on 9/16. 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 9/291:43 pmMDW - GTF
2 stops9h 45mDelta
Thu 10/25:40 amGTF - MDW
2 stops11h 55mDelta
Deal found 9/16$1,139
This Delta deal was found by Cheapflights users on 9/15. 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.
Sun 9/286:00 amMDW - GTF
2 stops12h 27mDelta
Wed 10/15:40 amGTF - MDW
2 stops10h 55mDelta
Deal found 9/15$1,399

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 September 17, 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

Sun 10/12

7:10 am-1:26 pm

1 stop7h 16m

Great Falls

Fri 10/17

2:31 pm-9:30 pm

1 stop5h 59m

$289

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 10/1

2:53 pm-9:11 pm

1 stop7h 18m

Great Falls

Sun 10/5

2:31 pm-11:59 pm

1 stop8h 28m

$302

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sun 10/12

7:10 am-1:26 pm

1 stop7h 16m

Great Falls

Mon 10/20

2:31 pm-11:59 pm

1 stop8h 28m

$314

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 12/3

7:20 am-12:31 pm

1 stop6h 11m

Great Falls

Sun 12/7

1:12 pm-9:24 pm

1 stop7h 12m

$321

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sun 10/12

7:10 am-1:26 pm

1 stop7h 16m

Great Falls

Thu 10/16

2:31 pm-11:59 pm

1 stop8h 28m

$354

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 10/1

5:30 am-5:27 pm

2 stops12h 57m

Great Falls

Sun 10/5

5:40 am-11:50 am

1 stop5h 10m

$424

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sun 9/28

7:10 am-1:26 pm

1 stop7h 16m

Great Falls

Wed 10/1

2:31 pm-9:30 pm

1 stop5h 59m

$479

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 12/3

10:25 am-6:55 pm

2 stops9h 30m

Great Falls

Sun 12/7

7:35 pm-7:17 pm

2 stops22h 42m

$528

ChicagoGreat Falls

MDW - GTF

MDWGTF

Chicago Midway

Wed 10/1

6:00 am-5:27 pm

2 stops12h 27m

Great Falls

Sun 10/5

5:40 am-6:35 pm

2 stops11h 55m

$989

ChicagoGreat Falls

MDW - GTF

MDWGTF

Chicago Midway

Mon 9/29

1:43 pm-10:28 pm

2 stops9h 45m

Great Falls

Thu 10/2

5:40 am-6:35 pm

2 stops11h 55m

$1,139

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 17 results
1
2

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 September 17, 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 in the afternoon could potentially save you up to 40% on airfare.

What’s the top layover airport for flights from Chicago to Great Falls?

Share of 1-stop round-trip flights from Chicago to Great Falls chosen by Cheapflights users in the past 12 months, using the same layover each way.

Seattle (SEA) – chosen by Cheapflights users on 67% of 1-stop itineraries from Chicago to Great Falls on Cheapflights.

What’s the cheapest layover airport for flights from Chicago to Great Falls?

Average round-trip fare for 1-stop flights from Chicago to Great Falls, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $408.

What’s the fastest layover option from Chicago to Great Falls?

Shortest average travel time for 1-stop one-way flights from Chicago to Great Falls, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 7h 37m.

Which airport typically offers the quickest layover for flights from Chicago to Great Falls?

Average layover duration for 1-stop one-way flights from Chicago to Great Falls, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Seattle (SEA) offer the fastest connection on this route, with an average layover time of 2h 11m.

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 September 17, 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
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 6h 11m. 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 $329. United Airlines is currently priced 19% 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.

  • What is the cheapest month to book a flight from Chicago to Great Falls?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Great Falls (average of $367). Flying from Chicago to Great Falls in July is currently the most expensive (average of $574). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$329Average$573FlexibilityNo cancel feeOn-time69%

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