How does KAYAK find such low prices on flights from Illinois to Great Falls?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Great Falls. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Great Falls?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Great Falls from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Illinois to Great Falls?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Great Falls with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Great Falls?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Great Falls from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$162 CHEAP FLIGHTS from Illinois to Great Falls

GTF

KAYAK searches hundreds of travel sites at once for deals on flights to Great Falls

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Flight Deals

Cheap Flights from Illinois to Great Falls

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Great Falls

Sat, May 23 - Mon, May 25

5:00 pm - 10:26 pm

ORD

GTF

6h 26m

1 stop

1:07 pm - 9:50 pm

GTF

ORD

7h 43m

1 stop

$318Delta

Sat, May 23 - Mon, May 25

1:44 pm - 10:26 pm

ORD

GTF

9h 42m

2 stops

1:07 pm - 9:50 pm

GTF

ORD

7h 43m

1 stop

$324Delta

Sat, Jun 20 - Wed, Jun 24

8:00 am - 12:40 pm

STL

GTF

5h 40m

1 stop

5:40 am - 1:36 pm

GTF

STL

6h 56m

1 stop

$338Delta

Sat, May 23 - Mon, May 25

5:00 pm - 10:26 pm

ORD

GTF

6h 26m

1 stop

5:40 am - 11:52 am

GTF

ORD

5h 12m

1 stop

$343Delta

Sat, May 23 - Mon, May 25

9:25 am - 5:39 pm

ORD

GTF

9h 14m

2 stops

5:40 am - 11:52 am

GTF

ORD

5h 12m

1 stop

$349Delta

Wed, Sep 9 - Wed, Sep 23

9:16 am - 9:28 pm

STL

GTF

13h 12m

2 stops

2:31 pm - 8:39 pm

GTF

STL

5h 08m

1 stop

$361United Airlines

Tue, May 12 - Sat, May 16

8:48 pm - 6:12 pm

ORD

GTF

22h 24m

1 stop

6:52 pm - 6:20 am

GTF

ORD

10h 28m

1 stop

$378Alaska Airlines

Thu, Sep 10 - Tue, Sep 15

3:17 pm - 4:39 pm

STL

GTF

26h 22m

1 stop

5:19 pm - 2:21 pm

GTF

STL

20h 02m

1 stop

$383Alaska Airlines

Tue, May 12 - Sat, May 16

4:06 pm - 9:18 pm

STL

GTF

6h 12m

1 stop

2:35 pm - 8:43 pm

GTF

STL

5h 08m

1 stop

$388United Airlines

Sat, Oct 24 - Tue, Oct 27

9:44 am - 9:21 pm

BMI

GTF

12h 37m

2 stops

2:25 pm - 12:12 am

GTF

BMI

8h 47m

2 stops

$716United Airlines

Useful Info

Low season	January
High season	June
Cheapest flight	$162

Best time to beat the crowds but there is an average 34% increase in price.

Most popular time to fly and prices are also 21% lower on average.

Flight from Chicago O'Hare Airport to Great Falls

How does KAYAK find such low prices on flights from Illinois to Great Falls?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Great Falls.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Great Falls?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Great Falls from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Great Falls?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Great Falls with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Great Falls?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Great Falls from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Shelby

Everything you need to know for your flight to Great Falls

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Great Falls

Great Falls (GTF)

GTF

$162 Find Cheap Flights from Illinois to Great Falls

KAYAK searches hundreds of travel sites at once for deals on flights to Great Falls

Cheap Flights from Illinois to Great Falls

Recent round-trip flight deals from Illinois to Great Falls

Recent one-way flight deals from Illinois to Great Falls

Recent last minute flight deals from Illinois to Great Falls

Recent direct flight deals from Illinois to Great Falls

Good to know

FAQs for booking flights from Illinois to Great Falls

How does KAYAK find such low prices on flights from Illinois to Great Falls?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Great Falls.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Great Falls?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Great Falls from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Great Falls?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Great Falls with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Great Falls?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Great Falls from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Great Falls?

Everything you need to know for your flight to Great Falls

Information on the airport you'll fly into in Great Falls

Cabin class types available on flights to Illinois

Complete your trip to Great Falls with a hotel stay or car rental

Find direct flights for Great Falls

Flights to other popular destinations

Flights from domestic origins to Great Falls

Choose which airport to fly into in Great Falls

Find deals for your return flight