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O'Hare Intl

$155+ Cheap flights from Great Falls (GTF) to O'Hare Intl (ORD)

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 6/28. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — ORD
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheap flight deals from Great Falls to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) to O'Hare Intl (ORD). 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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$258
(United Airlines)

One-way from

$155
(Delta)

Popular in

June

Cheapest in

September

Average price

$518

Good one-way deal

$319 or less
Provider with most accurate pricing for Great Falls-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Great Falls-Chicago O'Hare Intl flights.
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From Great Falls to Chicago O'Hare Intl
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One-way flight from Great Falls to Chicago O'Hare Intl
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Highest demand for flights based on searches. 25% potential increase in price ($179 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a one-way flight from Great Falls to Chicago O'Hare Intl.
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Find flight deals from Great Falls to O'Hare Intl

Cheapest flights from Great Falls to O'Hare Intl
Explore the most affordable flight options available from Great Falls to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

This United Airlines deal was found by Cheapflights users on 3/25. 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.
Tue 4/152:20 pmGTF - ORD
1 stop8h 32mUnited Airlines
Sat 4/197:10 amORD - GTF
1 stop7h 26mUnited Airlines
Deal found 3/25$258
This Delta deal was found by Cheapflights users on 3/25. 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 4/155:30 amGTF - ORD
1 stop6h 18mDelta
Sat 4/196:45 amORD - GTF
2 stops12h 10mDelta
Deal found 3/25$264
This Hawaiian Airlines deal was found by Cheapflights users on 3/25. 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.
Tue 4/83:52 pmGTF - ORD
1 stop7h 07mHawaiian Airlines
Tue 4/157:40 amORD - GTF
1 stop8h 32mHawaiian Airlines
Deal found 3/25$278
This Mytrip deal was found by Cheapflights users on 3/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/25:34 pmGTF - ORD
1 stop19h 39mMultiple Airlines
Sun 5/49:30 amORD - GTF
2 stops32h 14mMultiple Airlines
Deal found 3/25$392
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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.
Fri 5/26:07 pmGTF - ORD
1 stop10h 58mAlaska Airlines
Sun 5/47:19 pmORD - GTF
1 stop23h 08mAlaska Airlines
Deal found 3/25$413

Cheapflights Fare Finder

Customize your flight search to find flights from Great Falls to O'Hare Intl 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 March 26, 2025.
Use the filters below to find and compare flights from Great Falls to Chicago O'Hare Intl Airport that are best for you.

Fly from

Great Falls

Fly to

O'Hare Intl

Route

Depart

Return

Price

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 4/15

2:20 pm-11:52 pm

1 stop8h 32m

Chicago O'Hare Intl

Sat 4/19

7:10 am-1:36 pm

1 stop7h 26m

$258

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 4/15

5:30 am-12:48 pm

1 stop6h 18m

Chicago O'Hare Intl

Sat 4/19

6:45 am-5:55 pm

2 stops12h 10m

$264

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Tue 4/8

3:52 pm-11:59 pm

1 stop7h 07m

Chicago O'Hare Intl

Tue 4/15

7:40 am-3:12 pm

1 stop8h 32m

$278

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 5/2

5:34 pm-2:13 pm

1 stop19h 39m

Chicago O'Hare Intl

Sun 5/4

9:30 am-4:44 pm

2 stops32h 14m

$392

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 5/2

6:07 pm-6:05 am

1 stop10h 58m

Chicago O'Hare Intl

Sun 5/4

7:19 pm-5:27 pm

1 stop23h 08m

$413

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 6/28

5:45 am-3:03 pm

2 stops8h 18m

$155

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 6/28

12:59 pm-5:10 pm

Nonstop3h 11m

$249

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 7/26

4:55 pm-7:20 pm

2 stops25h 25m

$285

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Compare providers for flights from Great Falls to O'Hare Intl

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 Great Falls to O'Hare Intl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 Great Falls-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Great Falls-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Great Falls-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Great Falls-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 Great Falls-Chicago O'Hare Intl Airport 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 Great Falls to O'Hare Intl

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

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated March 26, 2025.
Alaska Airlines
8.0
Very good
9,789 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,789 reviews
Alaska Airlines
8.0
Very good
9,789 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,891 reviews
Alaska Airlines
8.0
Very good
9,789 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,331 reviews
Alaska Airlines
8.0
Very good
9,789 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,608 reviews
Alaska Airlines
8.0
Very good
9,789 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Great Falls to O'Hare Intl. 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 from for flights from Great Falls to Chicago O'Hare Intl?

    Located just 3.5 mi from the city center, Great Falls is the airport most travelers will use when flying to Chicago O'Hare Intl from Great Falls. Booking flights from Great Falls (GTF) to Chicago O'Hare Intl should be relatively easy as there are 0 daily outbound flights to Chicago O'Hare Intl from 3 different airlines.

  • What are the cheapest airlines flying from Great Falls to Chicago O'Hare Intl Airport round-trip?

    Currently priced at $258, United Airlines will fly you from Great Falls to Chicago O'Hare Intl Airport and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Hawaiian Airlines - these airlines can fly you to your destination from $264 and $278, respectively.

  • What are the cheapest airlines to fly from Great Falls to Chicago O'Hare Intl Airport one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $155. However, be on the lookout for offers from United Airlines and Alaska Airlines, as they are both options that can get you from Great Falls to Chicago O'Hare Intl Airport for a low price.

  • What are the cheapest flights from Great Falls to Chicago O'Hare Intl Airport?

    The cheapest flight price from Great Falls to Chicago O'Hare Intl Airport is $317. On average you can expect to pay $418. The most popular route, (Great Falls - Chicago O'Hare Intl), can usually be booked for $258.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Great Falls to Chicago O'Hare Intl Airport (average of $245). Flying from Great Falls to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $323). 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?

Book flights to Great Falls if you plan to visit one of these locations
Rosemont
Beloit
Naperville
Schaumburg
Racine
Hoffman Estates
Rockford
Tinley Park
Skokie
Kenosha
Arlington Heights
Joliet
Orland Park
Merrillville
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Evanston
New Buffalo
Elgin
Glenview
Lake Geneva

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Top 3 airlines flying from Great Falls to O'Hare Intl

Discover the top 3 airlines that operate flights from Great Falls to O'Hare Intl. 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$205Average$588FlexibilityNo cancel feeOn-time75%
DeltaCheapest$226Average$408FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$302Average$496FlexibilityNo cancel feeOn-time69%
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