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

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 Boise. 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 Boise?

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

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 Boise 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 Boise?

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 Boise 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>

$80 CHEAP FLIGHTS from Illinois to Boise

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Cheap Flights from Illinois to Boise

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

Sat, Sep 6 - Sat, Sep 13

9:40 am - 12:27 pmORD-BOI

3h 47mnonstop

1:07 pm - 5:45 pmBOI-ORD

3h 38mnonstop

$196American Airlines

Find Deal

Sat, Aug 23 - Sat, Aug 30

9:50 am - 12:29 pmORD-BOI

3h 39mnonstop

1:10 pm - 5:43 pmBOI-ORD

3h 33mnonstop

$197American Airlines

Find Deal

Thu, Aug 28 - Thu, Sep 4

6:00 am - 5:11 pmORD-BOI

12h 11m1 stop

2:16 pm - 9:32 pmBOI-ORD

6h 16m1 stop

$203Spirit Airlines

Find Deal

Sat, Sep 6 - Sat, Sep 13

3:20 pm - 10:50 pmORD-BOI

8h 30m1 stop

4:34 pm - 12:03 amBOI-ORD

6h 29m1 stop

$205Hawaiian Airlines

Find Deal

Thu, Aug 14 - Mon, Aug 18

5:40 am - 11:46 amORD-BOI

7h 06m1 stop

6:06 pm - 4:50 amBOI-ORD

9h 44m1 stop

$207

Find Deal

Mon, Sep 8 - Mon, Sep 15

9:00 am - 8:31 pmORD-BOI

12h 31m1 stop

9:16 pm - 4:49 amBOI-ORD

6h 33m1 stop

$213Spirit Airlines

Find Deal

Tue, Sep 9 - Tue, Sep 16

5:45 pm - 12:08 amORD-BOI

7h 23m1 stop

7:17 pm - 7:03 amBOI-ORD

10h 46m1 stop

$214Alaska Airlines

Find Deal

Tue, Sep 9 - Sun, Sep 14

5:45 pm - 12:08 amORD-BOI

7h 23m1 stop

8:42 pm - 7:03 amBOI-ORD

9h 21m1 stop

$224Alaska Airlines

Find Deal

Thu, Sep 4 - Sun, Sep 7

3:20 pm - 10:50 pmORD-BOI

8h 30m1 stop

8:42 pm - 7:03 amBOI-ORD

9h 21m1 stop

$234Hawaiian Airlines

Find Deal

Thu, Nov 6 - Mon, Nov 10

12:20 pm - 11:23 amSTL-BOI

24h 03m2 stops

12:18 pm - 4:35 pmBOI-STL

27h 17m3 stops

$416

Find Deal

Useful Info

Low season	January
High season	July
Cheapest flight	$80

Best time to beat the crowds with an average 6% drop in price.

Most popular time to fly and prices are also 1% lower on average.

Flight from Chicago O'Hare Airport to Boise

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

Ontario

Everything you need to know for your flight to Boise

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 Boise

Boise (BOI)

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

BOI

$80 Find Cheap Flights from Illinois to Boise

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

Cheap Flights from Illinois to Boise

Recent round-trip flight deals from Illinois to Boise

Recent one-way flight deals from Illinois to Boise

Recent last minute flight deals from Illinois to Boise

Recent direct flight deals from Illinois to Boise

Good to know

FAQs for booking flights from Illinois to Boise

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

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 Boise.

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

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

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 Boise 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 Boise?

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 Boise 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 Boise?

Everything you need to know for your flight to Boise

Information on the airport you'll fly into in Boise

Cabin class types available on flights to Illinois

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

Find direct flights for Boise

Flights to other popular destinations

Flights from domestic origins to Boise

Choose which airport to fly into in Boise

Find deals for your return flight