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$128+ Cheap flights from Great Falls (GTF) to Chicago (CHI)

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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — CHI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Great Falls to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) to Chicago (CHI). 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 June 12, 2025.

Round-trip from

$304
(Alaska Airlines)

One-way from

$128
(Delta)

Popular in

November

Cheapest in

September

Average price

$528

Good round-trip deal

$571 or less

Good one-way deal

$264 or less
From Great Falls to Chicago (CHI)
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One-way flight from Great Falls to Chicago (CHI)
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Highest demand for flights based on searches. 13% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Great Falls to Chicago (CHI).
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Price to beat on a one-way flight from Great Falls to Chicago (CHI).
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Find flight deals from Great Falls to Chicago

Cheapest flights from Great Falls to Chicago
Explore the most affordable flight options available from Great Falls to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/294:29 pmGTF - ORD
1 stop13h 34mAlaska Airlines
Tue 9/28:00 amORD - GTF
1 stop8h 49mAlaska Airlines
Deal found 6/11$304
This United Airlines deal was found by Cheapflights users on 6/11. 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 10/12:31 pmGTF - ORD
1 stop7h 08mUnited Airlines
Thu 10/92:53 pmORD - GTF
1 stop7h 18mUnited Airlines
Deal found 6/11$328
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/110:14 amGTF - ORD
1 stop18h 49mMultiple Airlines
Sat 8/97:49 pmORD - GTF
3 stops24h 23mMultiple Airlines
Deal found 6/10$371
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/286:18 pmGTF - MDW
2 stops13h 23mDelta
Sat 7/51:09 pmMDW - GTF
2 stops8h 23mDelta
Deal found 6/11$440
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/236:18 pmGTF - ORD
2 stops12h 31mDelta
Fri 7/112:00 pmORD - GTF
2 stops9h 45mDelta
Deal found 6/9$498

Cheapflights Fare Finder

Customize your flight search to find flights from Great Falls to Chicago 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 June 12, 2025.
Use the filters below to find and compare flights from Great Falls to Chicago that are best for you.

Fly from

Great Falls

Fly to

Chicago

Route

Depart

Return

Price

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 8/29

4:29 pm-7:03 am

1 stop13h 34m

Chicago O'Hare Intl

Tue 9/2

8:00 am-3:49 pm

1 stop8h 49m

$304

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 8/20

2:35 pm-11:59 pm

1 stop8h 24m

Chicago O'Hare Intl

Sun 8/24

7:15 am-1:37 pm

1 stop7h 22m

$338

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Fri 8/1

10:14 am-6:03 am

1 stop18h 49m

Chicago O'Hare Intl

Sat 8/9

7:49 pm-7:12 pm

3 stops24h 23m

$371

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

Sat 6/28

6:18 pm-8:41 am

2 stops13h 23m

Chicago Midway

Sat 7/5

1:09 pm-8:32 pm

2 stops8h 23m

$440

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Mon 6/23

6:18 pm-7:49 am

2 stops12h 31m

Chicago O'Hare Intl

Fri 7/11

2:00 pm-10:45 pm

2 stops9h 45m

$498

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 7/2

5:42 am-11:52 am

1 stop5h 10m

$128

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

Sat 9/6

5:45 am-5:37 pm

2 stops10h 52m

$134

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Wed 7/2

10:19 pm-8:50 am

2 stops33h 31m

$144

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sun 8/24

4:29 pm-10:04 pm

1 stop28h 35m

$221

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

Sat 7/19

12:59 pm-5:10 pm

Nonstop3h 11m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Great Falls to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago 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

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

Find hourly flight availability from Great Falls to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s typically best to fly out from Great Falls to Chicago in the afternoon. Doing so could potentially save you 48% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago 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 when rainfall is around 1.7 in.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, 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 Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated June 12, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Great Falls to Chicago. 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?

    For a flight from Great Falls to Chicago, you will be flying from Great Falls. Great Falls (GTF) is just 3.5 mi from the center of the city. Great Falls is the only Great Falls airport and it handles 0 outbound flights to Chicago per day. 2 airlines have flights to Chicago from Great Falls on a regular basis.

  • What are the cheapest airlines flying from Great Falls to Chicago round-trip?

    Cheapflights users have booked flights from Great Falls to Chicago round-trip from $304. Other airlines that can offer you cheap pricing are United Airlines, from $338, and Delta, from $440. These flights start at 38% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Great Falls to Chicago one-way?

    The cheapest airlines for a one-way flight from Great Falls to Chicago are Delta ($128), Alaska Airlines ($221), and United Airlines ($284).

  • What are the cheapest flights from Great Falls to Chicago?

    On average you can expect to pay $511 for a flight from Great Falls to Chicago. The cheapest flight overall is $264 while the most popular route, (Great Falls - Chicago O'Hare Intl) is currently priced at $328.

  • Can I find deals for flights from Great Falls to Chicago that include hotel bookings?

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

  • How can I find direct flights from Great Falls to Chicago?

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

  • Can I find deals for business class flights from Great Falls to Chicago?

    Yes. Cheapflights offers flight deals from Great Falls to Chicago 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?

    Currently, August is the cheapest month in which you can book a flight from Great Falls to Chicago (average of $245). Flying from Great Falls to Chicago in March is currently the most expensive (average of $321). 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
Merrillville
Lansing
Benton Harbor
Porter
Hammond
Valparaiso
Chesterton

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Alternative routes for Great Falls to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Great Falls to Chicago

Discover the top 2 airlines that operate flights from Great Falls to Chicago. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$205Average$588FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$302Average$447FlexibilityNo cancel feeOn-time69%

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