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$153+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — CHI
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
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 septiembre 11, 2025.

Round-trip from

$280
(Delta)

One-way from

$153
(United Airlines)

Popular in

November

Cheapest in

September

Average price

$307
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. 12% potential increase in price ($73 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($38 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 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 septiembre 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.
jue. 9/257:00 amGTF - ORD
1 stop5h 12mUnited Airlines
lun. 9/292:17 pmORD - GTF
1 stop7h 54mUnited Airlines
Deal found 9/10$306
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.
mié. 10/12:31 pmGTF - ORD
1 stop8h 28mUnited Airlines
sáb. 10/42:53 pmORD - GTF
1 stop7h 18mUnited Airlines
Deal found 9/10$316
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/76:09 pmGTF - ORD
2 stops13h 20mDelta
mar. 11/119:46 amORD - GTF
2 stops13h 58mDelta
Deal found 9/9$362
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.
mar. 9/232:35 pmGTF - ORD
1 stop5h 57mUnited Airlines
vie. 9/262:53 pmORD - GTF
1 stop7h 18mUnited Airlines
Deal found 9/9$379
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/305:14 pmGTF - ORD
2 stops22h 42mMultiple Airlines
dom. 11/210:43 pmORD - GTF
1 stop22h 49mMultiple Airlines
Deal found 9/10$386
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.
jue. 10/92:31 pmGTF - ORD
1 stop7h 08mUnited Airlines
dom. 10/127:10 amORD - GTF
1 stop7h 16mUnited Airlines
Deal found 9/10$400
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.
mié. 9/242:35 pmGTF - ORD
1 stop7h 07mUnited Airlines
dom. 9/287:10 amORD - GTF
1 stop7h 16mUnited Airlines
Deal found 9/9$464
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/316:50 pmGTF - ORD
1 stop28h 34mAlaska Airlines
dom. 11/25:00 amORD - GTF
1 stop13h 10mAlaska Airlines
Deal found 9/10$485
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.
mié. 10/15:40 amGTF - MDW
2 stops11h 55mDelta
sáb. 10/49:35 amMDW - GTF
2 stops8h 52mDelta
Deal found 9/10$883
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.
mié. 9/175:40 amGTF - MDW
2 stops10h 55mDelta
sáb. 9/209:20 amMDW - GTF
2 stops9h 07mDelta
Deal found 9/10$1,540
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.
jue. 9/115:40 amGTF - MDW
2 stops10h 55mDelta
dom. 9/1412:43 pmMDW - GTF
2 stops10h 45mDelta
Deal found 9/10$1,900
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.
jue. 10/165:30 amGTF - MDW
2 stops11h 55mDelta
lun. 10/201:48 pmMDW - GTF
2 stops10h 18mDelta
Deal found 9/10$1,980

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 septiembre 11, 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

mar. 3/3

1:10 pm-9:55 pm

1 stop7h 45m

Chicago O'Hare Intl

mié. 3/4

7:30 am-5:44 pm

2 stops11h 14m

$280

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

mar. 3/3

4:00 pm-5:04 am

1 stop12h 04m

Chicago O'Hare Intl

mié. 3/4

7:45 am-3:20 pm

1 stop8h 35m

$304

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

jue. 9/25

7:00 am-1:12 pm

1 stop5h 12m

Chicago O'Hare Intl

lun. 9/29

2:17 pm-9:11 pm

1 stop7h 54m

$306

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

mié. 10/1

2:31 pm-11:59 pm

1 stop8h 28m

Chicago O'Hare Intl

sáb. 10/4

2:53 pm-9:11 pm

1 stop7h 18m

$316

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

vie. 11/7

6:09 pm-8:29 am

2 stops13h 20m

Chicago O'Hare Intl

mar. 11/11

9:46 am-10:44 pm

2 stops13h 58m

$362

Great FallsChicago

GTF - ORD

GTFORD

Great Falls

mar. 9/23

2:35 pm-9:32 pm

1 stop5h 57m

Chicago O'Hare Intl

vie. 9/26

2:53 pm-9:11 pm

1 stop7h 18m

$379

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

mar. 3/3

5:30 am-6:08 pm

2 stops11h 38m

Chicago Midway

mié. 3/4

9:30 am-5:44 pm

2 stops9h 14m

$485

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

jue. 9/25

5:40 am-5:35 pm

2 stops10h 55m

Chicago Midway

lun. 9/29

9:20 am-5:27 pm

2 stops9h 07m

$1,900

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

jue. 10/16

5:30 am-6:25 pm

2 stops11h 55m

Chicago Midway

lun. 10/20

1:48 pm-11:06 pm

2 stops10h 18m

$1,980

Great FallsChicago

GTF - MDW

GTFMDW

Great Falls

sáb. 11/22

5:30 am-6:08 pm

2 stops11h 38m

Chicago Midway

dom. 11/30

6:00 am-5:30 pm

2 stops12h 30m

$2,040

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 12 results
1
2

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
No data available for this route at this time. Please check back soon.

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 septiembre 11, 2025.
See what other customers who have flown with Delta and United Airlines from Great Falls to Chicago have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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. 1 airline has flights to Chicago from Great Falls on a regular basis.

  • How long is the flight from Great Falls to Chicago?

    Airlines like Delta and Hawaiian Airlines fly from Great Falls to Chicago in about 7h 45m. The time it takes to get you to your destination can typically vary by up to 4h 19m. The distance between Great Falls and Chicago is about 1207 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Great Falls to Chicago round-trip?

    Cheapflights users have booked flights from Great Falls to Chicago round-trip from $430. This flight start at 13% lower than the current average price 3 months from now.

  • 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 Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
Lansing
Hammond
Benton Harbor
Porter
Chesterton

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Top airline flying from Great Falls to Chicago

Discover the top airline 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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$430Average$588FlexibilityNo cancel feeOn-time75%

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