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>

$114 CHEAP FLIGHTS from Illinois to Boise

BOI

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Cheap Flights from Illinois to Boise

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, Apr 4 - Sun, Apr 12

8:16 pm - 11:08 am

STL

BOI

15h 52m

1 stop

12:03 pm - 9:48 am

BOI

STL

20h 45m

1 stop

$240Frontier

Sat, Apr 18 - Sat, Apr 25

6:00 am - 12:22 pm

ORD

BOI

7h 22m

1 stop

2:57 pm - 11:59 pm

BOI

ORD

8h 02m

1 stop

$260Multiple Airlines

Wed, Apr 22 - Wed, Apr 22

6:00 am - 12:35 pm

ORD

BOI

7h 35m

1 stop

2:57 pm - 11:59 pm

BOI

ORD

8h 02m

1 stop

$263Alaska Airlines

Wed, Apr 15 - Sat, Apr 18

8:20 am - 11:47 pm

ORD

BOI

16h 27m

1 stop

2:22 pm - 11:59 pm

BOI

ORD

8h 37m

1 stop

$273Alaska Airlines

Wed, Apr 22 - Wed, Apr 29

8:25 am - 4:25 pm

STL

BOI

9h 00m

2 stops

6:00 am - 1:30 pm

BOI

STL

6h 30m

1 stop

$282Southwest

Tue, Apr 7 - Sat, Apr 11

6:12 pm - 10:11 pm

STL

BOI

4h 59m

1 stop

8:00 am - 2:43 pm

BOI

STL

5h 43m

1 stop

$297Delta

Fri, Jun 5 - Mon, Jun 8

6:40 pm - 1:45 am

MDW

BOI

8h 05m

1 stop

8:45 am - 1:05 pm

BOI

MDW

3h 20mnonstop

$299Southwest

Tue, May 5 - Tue, May 12

6:33 am - 12:49 pm

EVV

BOI

7h 16m

1 stop

1:41 pm - 11:10 pm

BOI

EVV

8h 29m

1 stop

$417American Airlines

Tue, May 5 - Tue, May 12

1:32 pm - 9:56 pm

EVV

BOI

9h 24m

2 stops

11:39 pm - 9:30 am

BOI

EVV

8h 51m

1 stop

$422Delta

Sat, Jun 20 - Sat, Jun 27

6:00 am - 11:26 am

PIA

BOI

6h 26m

1 stop

3:11 pm - 11:59 pm

BOI

PIA

7h 48m

1 stop

$454American Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$114

Best time to beat the crowds with an average 14% drop in price.

Most popular time to fly and prices are also 2% 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.

McCall

Ontario

Everything you need to know for your flight to Boise

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Information on the airport you'll fly into in Boise

Boise (BOI)

BOI

$114 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