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$117+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — GTF
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$260
(Delta)

One-way from

$117
(Delta)

Popular in

October

Cheapest in

January

Average price

$478
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. 3% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This Delta deal was found by Cheapflights users on 7/2. 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 8/1611:05 amORD - GTF
2 stops12h 40mDelta
Sat 8/235:45 amGTF - ORD
1 stop5h 13mDelta
Deal found 7/2$260
This Delta deal was found by Cheapflights users on 7/2. 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 8/161:08 pmMDW - GTF
2 stops10h 37mDelta
Sat 8/236:00 amGTF - MDW
1 stop6h 03mDelta
Deal found 7/2$260
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Thu 7/3110:00 amORD - GTF
2 stops24h 24mMultiple Airlines
Mon 8/410:14 amGTF - ORD
2 stops18h 11mMultiple Airlines
Deal found 7/1$290
This United Airlines deal was found by Cheapflights users on 7/1. 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 8/142:35 pmORD - GTF
1 stop7h 38mUnited Airlines
Thu 8/212:35 pmGTF - ORD
1 stop7h 07mUnited Airlines
Deal found 7/1$312
This Alaska Airlines deal was found by Cheapflights users on 7/2. 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.
Sat 8/168:00 amORD - GTF
1 stop9h 13mAlaska Airlines
Sat 8/234:29 pmGTF - ORD
1 stop13h 34mAlaska Airlines
Deal found 7/2$344

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 July 3, 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

Sat 8/16

11:05 am-10:45 pm

2 stops12h 40m

Great Falls

Sat 8/23

5:45 am-11:58 am

1 stop5h 13m

$260

ChicagoGreat Falls

MDW - GTF

MDWGTF

Chicago Midway

Sat 8/16

1:08 pm-10:45 pm

2 stops10h 37m

Great Falls

Sat 8/23

6:00 am-1:03 pm

1 stop6h 03m

$260

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 7/31

10:00 am-9:24 am

2 stops24h 24m

Great Falls

Mon 8/4

10:14 am-5:25 am

2 stops18h 11m

$290

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Thu 8/14

2:35 pm-9:13 pm

1 stop7h 38m

Great Falls

Thu 8/21

2:35 pm-10:42 pm

1 stop7h 07m

$312

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 8/16

8:00 am-4:13 pm

1 stop9h 13m

Great Falls

Sat 8/23

4:29 pm-7:03 am

1 stop13h 34m

$344

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Tue 9/23

7:55 am-12:25 pm

1 stop5h 30m

$117

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Mon 9/1

6:20 am-3:49 pm

1 stop10h 29m

$133

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Mon 9/1

8:00 am-3:49 pm

1 stop8h 49m

$174

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 8/9

7:49 pm-7:12 pm

3 stops24h 23m

$237

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 8/2

8:45 am-11:29 am

Nonstop3h 44m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 July 3, 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 42% on airfare.

How much does it cost to fly round-trip from Chicago to Great Falls?

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 July 3, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

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

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

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
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

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
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

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 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 2 different airlines.

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

    Flying on Delta is currently your cheapest option to Great Falls, with prices starting at $260. Additional round-trip tickets that might be worth considering are offered by United Airlines and Alaska Airlines, with the lowest prices starting at $312 and $344, respectively. Delta is currently priced 35% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $117. Users have also found prices from $133 and $249 on Alaska Airlines and United Airlines, respectively.

  • 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

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Top 2 airlines flying from Chicago to Great Falls

Discover the top 2 airlines 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$225Average$323FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$248Average$457FlexibilityNo cancel feeOn-time69%

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