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>

$241 CHEAP FLIGHTS from Illinois to Great Falls

GTF

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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

Mon, Aug 24 - Sat, Aug 29

4:40 pm - 9:12 pm

STL

GTF

5h 32m

1 stop

2:25 pm - 8:46 pm

GTF

STL

5h 21m

1 stop

$318United Airlines

Fri, Sep 4 - Mon, Sep 14

7:48 am - 12:28 pm

ORD

GTF

5h 40m

1 stop

1:15 pm - 9:47 pm

GTF

ORD

7h 32m

1 stop

$318Delta

Mon, Aug 24 - Sat, Aug 29

9:30 am - 9:12 pm

STL

GTF

12h 42m

2 stops

2:25 pm - 8:46 pm

GTF

STL

5h 21m

1 stop

$324United Airlines

Fri, Sep 4 - Tue, Sep 15

8:28 am - 5:42 pm

ORD

GTF

10h 14m

2 stops

1:15 pm - 9:47 pm

GTF

ORD

7h 32m

1 stop

$324Delta

Wed, Oct 7 - Mon, Oct 19

1:35 pm - 10:53 pm

ORD

GTF

10h 18m

2 stops

5:30 am - 4:33 pm

GTF

ORD

10h 03m

2 stops

$329Delta

Fri, Oct 16 - Mon, Oct 19

7:30 am - 12:27 pm

STL

GTF

5h 57m

1 stop

6:20 pm - 12:36 am

GTF

STL

5h 16m

1 stop

$343Delta

Tue, Sep 1 - Tue, Sep 8

2:42 pm - 9:12 pm

ORD

GTF

7h 30m

1 stop

2:25 pm - 9:52 pm

GTF

ORD

6h 27m

1 stop

$347United Airlines

Mon, Aug 10 - Fri, Aug 14

7:56 pm - 4:29 pm

STL

GTF

21h 33m

1 stop

5:09 pm - 10:59 pm

GTF

STL

28h 50m

2 stops

$527Alaska Airlines

Sun, Aug 16 - Fri, Aug 21

4:54 pm - 4:29 pm

STL

GTF

24h 35m

2 stops

5:18 pm - 9:24 am

GTF

STL

15h 06m

2 stops

$546Alaska Airlines

Mon, Aug 10 - Fri, Aug 14

6:02 am - 4:29 pm

STL

GTF

11h 27m

1 stop

5:09 pm - 1:52 pm

GTF

STL

19h 43m

1 stop

$582Alaska Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$241

Best time to beat the crowds but there is an average 31% increase in price.

Most popular time to fly and prices are also 12% 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

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

Great Falls (GTF)

GTF

$241 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

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Everything you need to know for your flight to Great Falls

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

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

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Flights from domestic origins to Great Falls

Choose which airport to fly into in Great Falls

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