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$219+ Cheap flights from O'Hare Intl (ORD) 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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — GTF
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Great Falls

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 11, 2025.

Round-trip from

$276
(United Airlines)

One-way from

$219
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$419
From Chicago O'Hare Intl to Great Falls
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One-way flight from Chicago O'Hare Intl to Great Falls
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Highest demand for flights based on searches. 19% potential increase in price ($119 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($36 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 O'Hare Intl to Great Falls

Cheapest flights from O'Hare Intl to Great Falls
Explore the most affordable flight options available from O'Hare Intl to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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
Sat 10/42:31 pmGTF - ORD
1 stop8h 28mUnited Airlines
Deal found 9/10$276
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/22:17 pmORD - GTF
1 stop7h 54mUnited Airlines
Fri 10/32:31 pmGTF - ORD
1 stop5h 59mUnited Airlines
Deal found 9/10$278
This Delta deal was found by Cheapflights users on 9/10. 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.
Sat 10/117:10 amORD - GTF
2 stops11h 19mDelta
Mon 10/201:08 pmGTF - ORD
1 stop7h 35mDelta
Deal found 9/10$327
This Delta deal was found by Cheapflights users on 9/10. 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 12/32:32 pmORD - GTF
2 stops8h 58mDelta
Sun 12/75:30 amGTF - ORD
1 stop6h 11mDelta
Deal found 9/10$352
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/241:58 pmORD - GTF
1 stop8h 30mUnited Airlines
Sun 9/282:31 pmGTF - ORD
1 stop8h 27mUnited Airlines
Deal found 9/9$369
This Hawaiian Airlines deal was found by Cheapflights users on 9/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:00 amORD - GTF
1 stop9h 55mHawaiian Airlines
Sun 12/77:35 pmGTF - ORD
1 stop9h 46mHawaiian Airlines
Deal found 9/10$371
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Wed 12/37:35 amORD - GTF
2 stops27h 52mMultiple Airlines
Sun 12/711:17 amGTF - ORD
1 stop18h 08mMultiple Airlines
Deal found 9/9$389

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 11, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Great Falls that are best for you.

Fly from

O'Hare Intl

Fly to

Great Falls

Route

Depart

Return

Price

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 10/1

2:53 pm-9:11 pm

1 stop7h 18m

Great Falls

Sat 10/4

2:31 pm-11:59 pm

1 stop8h 28m

$276

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 10/11

7:10 am-5:29 pm

2 stops11h 19m

Great Falls

Mon 10/20

1:08 pm-9:43 pm

1 stop7h 35m

$327

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 12/3

2:32 pm-10:30 pm

2 stops8h 58m

Great Falls

Sun 12/7

5:30 am-12:41 pm

1 stop6h 11m

$352

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 12/3

8:30 pm-10:27 am

1 stop14h 57m

Great Falls

Sun 12/7

11:17 am-6:25 am

1 stop18h 08m

$367

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 9/24

1:58 pm-9:28 pm

1 stop8h 30m

Great Falls

Sun 9/28

2:31 pm-11:58 pm

1 stop8h 27m

$369

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 12/3

10:00 am-6:55 pm

1 stop9h 55m

Great Falls

Sun 12/7

7:35 pm-6:21 am

1 stop9h 46m

$371

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 10/2

7:10 am-1:26 pm

1 stop7h 16m

Great Falls

Fri 10/3

2:31 pm-5:05 pm

2 stops25h 34m

$419

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 12/18

8:30 pm-9:35 pm

1 stop26h 05m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Best time to book a flight from O'Hare Intl to Great Falls

Have a flexible travel schedule? Discover the best time to fly to Great Falls from O'Hare Intl 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 O'Hare Intl Airport to Great Falls

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

Find hourly flight availability from O'Hare Intl 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 11, 2025.

When flying from Chicago O'Hare Intl Airport to Great Falls, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 42% versus a flight in the morning.

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 11, 2025.
Read reviews from past customers who have flown United Airlines from Chicago O'Hare Intl Airport to Great Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 O'Hare Intl?

    Most people fly into Great Falls (GTF) if they book a flight to Great Falls from Chicago O'Hare Intl. On average, Great Falls has 0 inbound flights from Chicago O'Hare Intl per day from 1 airline. Great Falls is conveniently located just 3.5 mi from Great Falls’s city center.

  • How long is the flight from Chicago O'Hare Intl Airport to Great Falls?

    For as low as $276, United Airlines can have you in Great Falls from Chicago O'Hare Intl Airport in 7h 18m. Chicago O'Hare Intl Airport and Great Falls are separated by a distance of 1207 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Chicago O'Hare Intl Airport to Great Falls round-trip?

    Currently priced at $329, United Airlines will fly you from Chicago O'Hare Intl Airport to Great Falls and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Users have found that United Airlines is 32% cheaper than the other options available to this destination.

  • Can I find deals for flights from O'Hare Intl to Great Falls that include hotel bookings?

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

  • How can I find direct flights from O'Hare Intl to Great Falls?

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

  • Can I find deals for business class flights from O'Hare Intl to Great Falls?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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 O'Hare Intl Airport to Great Falls?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Great Falls (average of $367). Flying from Chicago O'Hare Intl Airport 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

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Top airline flying from O'Hare Intl to Great Falls

Discover the top airline that operate flights from O'Hare Intl 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 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$329Average$573FlexibilityNo cancel feeOn-time69%

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