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Great Falls

$208+ Cheap flights from Illinois 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — GTF
Feb 26 — Mar 51
Wed 2/26
Wed 3/5
1 adult, Economy
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Cheap flight deals from Illinois to Great Falls

Keep the following information in mind while searching for Illinois to Great Falls flight deals. Data was last updated February 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$338
(Hawaiian Airlines)

One-way from

$208
(Delta)

Popular in

October

Cheapest in

January

Average price

$324
Provider with most accurate pricing for Chicago (CHI)-Great Falls flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Great Falls flights.
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From Illinois to Great Falls
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One-way flight from Illinois to Great Falls
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Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Illinois to Great Falls

Cheapest flights from Illinois to Great Falls
Explore the most affordable flight options available from Illinois to Great Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 21, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 2/20. 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.
Wed 4/97:40 amORD - GTF
1 stop8h 32mHawaiian Airlines
Sun 4/133:52 pmGTF - ORD
1 stop7h 07mHawaiian Airlines
Deal found 2/20$338
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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 4/96:56 pmORD - GTF
2 stops21h 16mAlaska Airlines
Sun 4/133:52 pmGTF - ORD
1 stop7h 07mAlaska Airlines
Deal found 2/20$433
This United deal was found by Cheapflights users on 2/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/28:50 amORD - GTF
Nonstop3h 45mUnited Airlines
Sat 8/912:30 pmGTF - ORD
Nonstop3h 15mUnited Airlines
Deal found 2/20$478
This Delta deal was found by Cheapflights users on 2/19. 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.
Wed 7/29:30 amORD - GTF
1 stop11h 33mDelta
Fri 7/412:40 pmGTF - ORD
1 stop8h 20mDelta
Deal found 2/19$515
This Delta deal was found by Cheapflights users on 2/19. 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.
Wed 7/212:08 pmMDW - GTF
1 stop8h 55mDelta
Wed 7/96:00 amGTF - MDW
1 stop6h 02mDelta
Deal found 2/19$515
This Delta deal was found by Cheapflights users on 2/19. 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 6/302:15 pmSTL - GTF
1 stop9h 28mDelta
Fri 7/45:30 amGTF - STL
1 stop6h 54mDelta
Deal found 2/19$572
This United Airlines deal was found by Cheapflights users on 2/19. 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 7/14:30 pmSTL - GTF
1 stop5h 30mUnited Airlines
Thu 7/37:00 amGTF - STL
2 stops14h 45mUnited Airlines
Deal found 2/19$582
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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 6/287:30 pmSTL - GTF
1 stop20h 50mAlaska Airlines
Fri 7/44:00 pmGTF - STL
1 stop6h 56mAlaska Airlines
Deal found 2/19$665

Find flights from Illinois to Great Falls within your budget

Customize your flight search to find flights from Illinois 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 February 21, 2025.

Fly from

Illinois

Fly to

Great Falls

Route

Depart

Return

Price

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 4/9

7:40 am-3:12 pm

1 stop8h 32m

Great Falls

Sun 4/13

3:52 pm-11:59 pm

1 stop7h 07m

$338

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 4/9

6:56 pm-3:12 pm

2 stops21h 16m

Great Falls

Sun 4/13

3:52 pm-11:59 pm

1 stop7h 07m

$433

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Sat 8/2

8:50 am-11:35 am

Nonstop3h 45m

Great Falls

Sat 8/9

12:30 pm-4:45 pm

Nonstop3h 15m

$478

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 7/2

9:30 am-8:03 pm

1 stop11h 33m

Great Falls

Fri 7/4

12:40 pm-10:00 pm

1 stop8h 20m

$515

ChicagoGreat Falls

MDW - GTF

MDWGTF

Chicago Midway

Wed 7/2

12:08 pm-8:03 pm

1 stop8h 55m

Great Falls

Wed 7/9

6:00 am-1:02 pm

1 stop6h 02m

$515

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Mon 6/30

2:15 pm-10:43 pm

1 stop9h 28m

Great Falls

Wed 7/9

6:00 am-2:16 pm

1 stop7h 16m

$572

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Tue 7/1

4:30 pm-9:00 pm

1 stop5h 30m

Great Falls

Wed 7/9

7:00 am-10:45 pm

2 stops14h 45m

$582

St. LouisGreat Falls

STL - GTF

STLGTF

Lambert-St Louis

Sat 6/28

7:30 pm-3:20 pm

1 stop20h 50m

Great Falls

Fri 7/4

4:00 pm-11:56 pm

1 stop6h 56m

$665

ChicagoGreat Falls

MDW - GTF

MDWGTF

Chicago Midway

Wed 6/4

2:00 pm-8:04 pm

1 stop7h 04m

$208

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Mon 3/17

9:16 am-7:31 pm

2 stops35h 15m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 11 results
1
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Best time to book a flight from Illinois to Great Falls

Have a flexible travel schedule? Discover the best time to fly to Great Falls from Illinois 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.

Travel insights for flights from Illinois to Great Falls

Get recent, data-driven insights about flights from Illinois to Great Falls including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois to Great Falls?

Currently, January is the cheapest month in which you can book a flight from Illinois to Great Falls (average of $367). Flying from Illinois to Great Falls in June is currently the most expensive (average of $605). 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.

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

Find hourly flight availability from Illinois 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 February 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Great Falls as you normally would.

Rainfall in Great Falls by month

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

In terms of precipitation, rainfall in Great Falls ranges from 0.5 - 2.5 inches per month. June is typically the wettest month, when rainfall can reach 2.5 in. January is typically the driest time to visit Great Falls when rainfall is around 0.5 in.

Temperature in Great Falls by month

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

If weather is an important factor for your trip to Great Falls, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

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 February 21, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and Hawaiian Airlines from Illinois to Great Falls to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,697 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

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
9,697 reviews
Alaska Airlines
8.0
Very good
9,697 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

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
8,213 reviews
Alaska Airlines
8.0
Very good
9,697 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

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
2,316 reviews
Alaska Airlines
8.0
Very good
9,697 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

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
8,759 reviews
Alaska Airlines
8.0
Very good
9,697 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

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 Illinois 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 Illinois?

    Great Falls (GTF), located 3.5 mi from the city center, is the airport you fly into when you book flights from Illinois to Great Falls.

  • What are the most popular routes from Illinois to Great Falls?

    While some choose either Chicago Midway - Great Falls or Greater Peoria - Great Falls, Chicago O'Hare Intl - Great Falls is the most popular route from Illinois to Great Falls.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Illinois to Great Falls (average of $367). Flying from Illinois to Great Falls in June is currently the most expensive (average of $605). 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 Illinois to Great Falls

Discover the top 2 airlines that operate flights from Illinois 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 February 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$182Average$379FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$435FlexibilityNo cancel feeOn-time69%
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