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$163+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — GTF
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/11. 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 12/312:31 pmORD - GTF
1 stop9h 15mUnited Airlines
Mon 1/52:35 pmGTF - ORD
1 stop7h 25mUnited Airlines
Deal found 12/11$523
This Alaska Airlines deal was found by Cheapflights users on 12/10. 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 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
2 stops32h 41mAlaska Airlines
Deal found 12/10$848

Find 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$280
(Delta)

One-way from

$163
(United Airlines)

Popular in

December

Cheapest in

April

Average price

$744
Provider with most accurate pricing for Chicago O'Hare Intl-Great Falls flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Great Falls flights.
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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. 15% potential increase in price ($91 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 12, 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 1/14

6:50 am-5:30 pm

2 stops11h 40m

Great Falls

Sun 1/18

5:30 am-12:41 pm

1 stop6h 11m

$280

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 1/17

8:00 am-5:19 pm

1 stop10h 19m

Great Falls

Wed 1/21

5:59 pm-2:38 pm

1 stop19h 39m

$313

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 1/14

7:00 am-1:48 pm

1 stop7h 48m

Great Falls

Sun 1/18

2:29 pm-11:59 pm

1 stop8h 30m

$344

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 6/6

7:15 am-12:23 pm

1 stop6h 08m

Great Falls

Thu 6/11

6:20 pm-7:26 am

2 stops12h 06m

$363

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 1/14

9:00 am-5:19 pm

2 stops33h 19m

Great Falls

Sun 1/18

5:59 pm-1:10 pm

2 stops18h 11m

$498

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 12/31

2:31 pm-10:46 pm

1 stop9h 15m

Great Falls

Mon 1/5

2:35 pm-11:00 pm

1 stop7h 25m

$523

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 1/15

1:55 pm-9:53 pm

1 stop8h 58m

$163

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 5/29

8:00 am-4:29 pm

1 stop9h 29m

$177

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 1/15

10:07 am-4:28 pm

3 stops31h 21m

$210

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 5/29

7:15 am-1:29 pm

1 stop7h 14m

$275

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 12 results
1
2

Compare providers for flights from O'Hare Intl 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 O'Hare Intl 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 O'Hare Intl Airport-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 O'Hare Intl Airport-Great Falls flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Great Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-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 O'Hare Intl Airport-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 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 December 12, 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 41% 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 December 12, 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
9,095 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 $344, Delta can have you in Great Falls from Chicago O'Hare Intl Airport in 7h 48m. 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 $328, 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.

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$328Average$573FlexibilityNo cancel feeOn-time69%

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