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>

$195 CHEAP FLIGHTS from Illinois to Great Falls

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Flight Deals

Cheap Flights from Illinois to Great Falls

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Great Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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

Round-trip

One-way

Recent round-trip flight deals from Illinois to Great Falls

Sun, Oct 12 - Fri, Oct 17

7:10 am - 1:26 pmORD-GTF

7h 16m1 stop

2:31 pm - 9:30 pmGTF-ORD

5h 59m1 stop

$289United Airlines

Find Deal

Wed, Dec 3 - Sun, Dec 7

7:20 am - 12:31 pmORD-GTF

6h 11m1 stop

1:12 pm - 9:24 pmGTF-ORD

7h 12m1 stop

$321Delta

Find Deal

Sun, Oct 12 - Thu, Oct 16

7:10 am - 1:26 pmORD-GTF

7h 16m1 stop

2:31 pm - 11:59 pmGTF-ORD

8h 28m1 stop

$329United Airlines

Find Deal

Sat, Oct 18 - Fri, Oct 24

1:14 pm - 12:15 pmORD-GTF

24h 01m2 stops

10:27 pm - 12:17 amGTF-ORD

24h 50m1 stop

$352Multiple Airlines

Find Deal

Sat, Oct 18 - Fri, Oct 24

2:17 pm - 9:11 pmORD-GTF

7h 54m1 stop

2:31 pm - 10:39 pmGTF-ORD

7h 08m1 stop

$368United Airlines

Find Deal

Fri, Oct 10 - Tue, Oct 14

4:50 pm - 9:11 pmSTL-GTF

5h 21m1 stop

2:31 pm - 8:46 pmGTF-STL

5h 15m1 stop

$388United Airlines

Find Deal

Thu, Oct 16 - Sun, Oct 19

6:50 am - 12:28 pmSTL-GTF

6h 38m1 stop

6:09 pm - 12:24 amGTF-STL

5h 15m1 stop

$398Delta

Find Deal

Thu, Feb 12 - Sun, Feb 15

7:00 am - 3:20 pmSTL-GTF

9h 20m1 stop

4:00 pm - 11:56 pmGTF-STL

6h 56m1 stop

$476Hawaiian Airlines

Find Deal

Wed, Dec 3 - Sun, Dec 7

10:25 am - 6:55 pmORD-GTF

9h 30m2 stops

7:35 pm - 7:17 pmGTF-ORD

22h 42m2 stops

$528Alaska Airlines

Find Deal

Thu, Feb 12 - Sun, Feb 15

6:10 am - 3:20 pmSTL-GTF

34h 10m2 stops

4:00 pm - 11:56 pmGTF-STL

6h 56m1 stop

$581Alaska Airlines

Find Deal

Cheapest round-trip

$289

United Airlines

Sun 10/12Fri 10/17

ORD - GTF • 1 stop

Cheapest one-way

$195

Alaska Airlines

Wed 10/15

STL - GTF • 1 stop

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KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Great Falls!

Useful Info

Low season	March
High season	June
Cheapest flight	$195

Best time to beat the crowds with an average 15% drop in price.

Most popular time to fly and prices are also 12% lower on average.

Flight from St. Louis 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

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Direct Flights

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Origins

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

Great Falls (GTF)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

GTF

$195 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

Everything you should know

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