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

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 Billings. 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 Billings?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billings 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 Billings?

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 Billings 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 Billings?

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 Billings 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>

$113 CHEAP FLIGHTS from Illinois to Billings

BIL

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Flight Deals

Cheap Flights from Illinois to Billings

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Billings 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

Last minute

Direct

Recent round-trip flight deals from Illinois to Billings

Thu, Sep 4 - Tue, Sep 9

6:50 pm - 8:57 pmORD-BIL

3h 07mnonstop

6:02 am - 9:55 amBIL-ORD

2h 53mnonstop

$229American Airlines

Find Deal

Fri, Sep 5 - Tue, Sep 9

9:40 am - 11:49 amORD-BIL

3h 09mnonstop

12:19 pm - 4:13 pmBIL-ORD

2h 54mnonstop

$244American Airlines

Find Deal

Fri, Sep 12 - Mon, Sep 15

5:00 am - 9:44 amORD-BIL

5h 44m1 stop

5:57 pm - 11:59 pmBIL-ORD

5h 02m1 stop

$249United Airlines

Find Deal

Fri, Sep 5 - Tue, Sep 9

7:17 pm - 11:12 pmMDW-BIL

4h 55m1 stop

6:25 am - 1:03 pmBIL-MDW

5h 38m1 stop

$249Delta

Find Deal

Wed, Sep 10 - Mon, Sep 15

7:09 pm - 9:08 amORD-BIL

38h 59m2 stops

9:33 pm - 6:51 pmBIL-ORD

20h 18m1 stop

$258

Find Deal

Sat, Sep 13 - Tue, Sep 16

6:20 pm - 11:04 pmORD-BIL

5h 44m1 stop

5:25 am - 11:53 amBIL-ORD

5h 28m1 stop

$264Delta

Find Deal

Fri, Sep 5 - Sun, Sep 7

10:56 am - 5:16 pmORD-BIL

7h 20m1 stop

5:57 pm - 11:59 pmBIL-ORD

5h 02m1 stop

$271United Airlines

Find Deal

Sat, Oct 18 - Sat, Oct 18

8:00 am - 3:04 pmORD-BIL

8h 04m1 stop

7:15 pm - 6:24 amBIL-ORD

10h 09m1 stop

$362Hawaiian Airlines

Find Deal

Thu, Aug 28 - Mon, Sep 1

9:45 pm - 3:35 pmORD-BIL

18h 50m1 stop

11:34 am - 5:15 pmBIL-ORD

28h 41m1 stop

$372

Find Deal

Thu, Oct 2 - Mon, Oct 6

3:20 pm - 12:11 amORD-BIL

9h 51m1 stop

7:15 pm - 6:24 amBIL-ORD

10h 09m1 stop

$382Hawaiian Airlines

Find Deal

Useful Info

Low season	January
High season	July
Cheapest flight	$113

Best time to beat the crowds but there is an average 2% increase in price.

Most popular time to fly and prices are also 0% lower on average.

Flight from Chicago O'Hare Airport to Billings

How does KAYAK find such low prices on flights from Illinois to Billings?
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 Billings.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Billings?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billings 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 Billings?
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 Billings 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 Billings?
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 Billings from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Billings

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 Billings

Billings (BIL)

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

BIL

$113 Find Cheap Flights from Illinois to Billings

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

Cheap Flights from Illinois to Billings

Recent round-trip flight deals from Illinois to Billings

Recent one-way flight deals from Illinois to Billings

Recent last minute flight deals from Illinois to Billings

Recent direct flight deals from Illinois to Billings

Good to know

FAQs for booking flights from Illinois to Billings

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

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 Billings.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billings 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 Billings?

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 Billings 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 Billings?

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 Billings from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Billings

Information on the airport you'll fly into in Billings

Cabin class types available on flights to Illinois

Complete your trip to Billings with a hotel stay or car rental

Find direct flights for Billings

Flights to other popular destinations

Flights from domestic origins to Billings

Choose which airport to fly into in Billings

Find deals for your return flight