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.

$106 CHEAP FLIGHTS from Illinois to Boise

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Flight Deals

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

Thu, Dec 10 - Mon, Dec 14

6:21 am - 5:20 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

11h 59m1 stop Las Vegas Harry Reid Intl

6:15 pm - 5:01 amBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

9h 46m1 stop Las Vegas Harry Reid Intl

$254Frontier

Thu, Dec 10 - Mon, Dec 14

6:21 am - 5:20 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

11h 59m1 stop Las Vegas Harry Reid Intl

6:15 pm - 5:01 amBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

9h 46m1 stop Las Vegas Harry Reid Intl

$261Frontier

Sat, Dec 5 - Tue, Dec 8

3:19 pm - 11:59 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

9h 40m1 stop Seattle/Tacoma Intl

6:37 am - 4:31 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

8h 54m1 stop Seattle/Tacoma Intl

$273Alaska Airlines

Sat, Dec 5 - Tue, Dec 8

2:13 pm - 10:27 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

9h 14m1 stop San Diego

5:47 am - 1:10 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

6h 23m1 stop Portland

$273Alaska Airlines

Sat, Dec 5 - Tue, Dec 8

9:55 am - 12:50 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 55mnonstop

1:39 pm - 6:17 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 38mnonstop

$293American Airlines

Thu, Nov 19 - Thu, Nov 26

8:40 am - 11:31 amORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 51mnonstop

8:28 am - 1:15 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 47mnonstop

$293United Airlines

Sat, Dec 5 - Tue, Dec 8

3:04 pm - 10:46 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

8h 42m1 stop Dallas/Fort Worth

1:39 pm - 6:17 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 38mnonstop

$303American Airlines

Thu, Dec 10 - Mon, Dec 14

7:30 am - 2:50 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

8h 20m1 stop San Francisco

8:00 am - 12:47 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 47mnonstop

$303United Airlines

Thu, Nov 19 - Thu, Nov 26

8:05 am - 3:10 pmMDW Chicago Midway-BOI Boise Air Term. Gowen Fld

8h 05m1 stop Denver Intl

7:35 am - 2:45 pmBOI Boise Air Term. Gowen Fld-MDW Chicago Midway

6h 10m1 stop Phoenix Sky Harbor Intl

$313Southwest

Mon, Nov 23 - Wed, Nov 25

6:05 pm - 1:30 amMDW Chicago Midway-BOI Boise Air Term. Gowen Fld

8h 25m1 stop Las Vegas Harry Reid Intl

10:20 pm - 5:45 amBOI Boise Air Term. Gowen Fld-MDW Chicago Midway

6h 25m1 stop Sacramento Intl

$313Southwest

Recent last minute flight deals from Illinois to Boise

Wed, Nov 4 - Wed, Nov 11

7:20 am - 7:53 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

13h 33m1 stop San Diego

6:43 pm - 1:17 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

17h 34m1 stop San Diego

$406Alaska Airlines

Wed, Nov 4 - Wed, Nov 11

3:59 pm - 10:20 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

7h 21m1 stop Seattle/Tacoma Intl

1:53 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

9h 06m1 stop Seattle/Tacoma Intl

$406Alaska Airlines

Thu, Nov 5 - Thu, Nov 12

3:59 pm - 11:49 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

8h 50m1 stop Seattle/Tacoma Intl

2:49 pm - 5:13 amBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

13h 24m1 stop Las Vegas Harry Reid Intl

$415Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

9:45 am - 12:37 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 52mnonstop

1:24 pm - 6:10 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 46mnonstop

$466American Airlines

Wed, Nov 4 - Wed, Nov 11

9:45 am - 12:37 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 52mnonstop

1:24 pm - 6:10 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 46mnonstop

$466American Airlines

Wed, Nov 4 - Wed, Nov 11

6:04 am - 1:34 pmMDW Chicago Midway-BOI Boise Air Term. Gowen Fld

8h 30m1 stop Atlanta Hartsfield-Jackson

5:30 am - 11:50 amBOI Boise Air Term. Gowen Fld-MDW Chicago Midway

5h 20m1 stop Minneapolis St Paul

$486Delta

Wed, Nov 4 - Wed, Nov 11

10:12 am - 10:08 pmMDW Chicago Midway-BOI Boise Air Term. Gowen Fld

12h 56m2 stops Minneapolis St Paul Seattle/Tacoma Intl

5:30 am - 11:50 amBOI Boise Air Term. Gowen Fld-MDW Chicago Midway

5h 20m1 stop Minneapolis St Paul

$491Delta

Sat, Oct 31 - Sat, Nov 7

8:40 am - 11:31 amORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 51mnonstop

8:28 am - 1:15 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 47mnonstop

$493United Airlines

Thu, Nov 5 - Thu, Nov 12

2:15 pm - 11:46 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

10h 31m2 stops San Diego Portland

2:49 pm - 5:13 amBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

13h 24m1 stop Las Vegas Harry Reid Intl

$498Multiple Airlines

Thu, Nov 5 - Mon, Nov 9

7:45 pm - 10:51 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

4h 06mnonstop

7:10 pm - 5:02 amBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

8h 52m1 stop San Francisco

$504United Airlines

Recent direct flight deals from Illinois to Boise

Sat, Dec 5 - Tue, Dec 8

9:55 am - 12:50 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 55mnonstop

1:39 pm - 6:17 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 38mnonstop

$293American Airlines

Thu, Nov 19 - Thu, Nov 26

8:40 am - 11:31 amORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 51mnonstop

8:28 am - 1:15 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 47mnonstop

$293United Airlines

Wed, Dec 16 - Fri, Dec 25

8:45 am - 12:07 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

4h 22mnonstop

8:05 am - 12:53 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 48mnonstop

$326United Airlines

Fri, Nov 20 - Mon, Nov 23

9:45 am - 12:38 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 53mnonstop

1:24 pm - 6:09 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 45mnonstop

$336American Airlines

Fri, Nov 20 - Mon, Nov 23

9:45 am - 12:38 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 53mnonstop

1:24 pm - 6:09 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 45mnonstop

$336American Airlines

Sat, Dec 5 - Tue, Dec 8

9:55 am - 12:50 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 55mnonstop

1:39 pm - 6:17 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 38mnonstop

$343American Airlines

Sat, Dec 5 - Tue, Dec 8

9:55 am - 12:50 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

3h 55mnonstop

1:39 pm - 6:17 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 38mnonstop

$349American Airlines

Fri, Feb 19 - Mon, Feb 22

8:45 pm - 12:04 amORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

4h 19mnonstop

6:17 am - 11:05 amBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 48mnonstop

$359American Airlines

Tue, Feb 23 - Wed, Mar 3

8:45 pm - 12:04 amORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

4h 19mnonstop

6:17 am - 11:05 amBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 48mnonstop

$359American Airlines

Thu, Dec 24 - Thu, Dec 31

7:54 pm - 11:15 pmORD Chicago O'Hare Intl-BOI Boise Air Term. Gowen Fld

4h 21mnonstop

8:05 am - 12:53 pmBOI Boise Air Term. Gowen Fld-ORD Chicago O'Hare Intl

3h 48mnonstop

$359United Airlines

Useful Info

Low season	January
High season	December
Cheapest flight	$106

Best time to beat the crowds with an average 11% drop in price.

Most popular time to fly with an average 6% increase in price.

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.