Earn point on your loyalty program!arrow arc left

Cheap flights from Chicago (CHI) to Boise (BOI)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Chicago (CHI) to Boise (BOI)

How to find the cheapest flight from Chicago (CHI) to Boise (BOI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Chicago (CHI) to Boise (BOI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Chicago (CHI) to Boise (BOI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Chicago to Boise in September , October 2026

29 Sep - 06 Oct $ 348.00
CHI
Chicago
Alaska Airlines
1 STOPS
BOI
Boise
BOI
Boise
Alaska Airlines
1 STOPS
CHI
Chicago
Pick dates
15 Sep - 02 Oct $ 378.00
CHI
Chicago
Alaska Airlines
1 STOPS
BOI
Boise
BOI
Boise
Alaska Airlines
1 STOPS
CHI
Chicago
Pick dates
11 Sep - 10 Oct $ 431.00
CHI
Chicago
Alaska Airlines
1 STOPS
BOI
Boise
BOI
Boise
Alaska Airlines
1 STOPS
CHI
Chicago
Pick dates

Last minute flights from Chicago to Boise

29 Sep - 30 Sep $ 393.00
CHI
Chicago
Alaska Airlines
1 STOPS
BOI
Boise
BOI
Boise
Alaska Airlines
1 STOPS
CHI
Chicago
Pick dates
15 Sep - 30 Sep $ 393.00
CHI
Chicago
Alaska Airlines
1 STOPS
BOI
Boise
BOI
Boise
Alaska Airlines
1 STOPS
CHI
Chicago
Pick dates
11 Sep - 30 Sep $ 517.00
CHI
Chicago
Alaska Airlines
1 STOPS
BOI
Boise
BOI
Boise
Alaska Airlines
1 STOPS
CHI
Chicago
Pick dates

One-way flights to Boise from Chicago

8:00 AM - 11:43 AM
Alaska Airlines
1 Stops
7h 22m
CHI - BOI
$ 197
Kiwi
Pick dates
1:03 PM - 6:05 PM
Alaska Airlines
1 Stops
8h 32m
CHI - BOI
$ 197
Kiwi
Pick dates
8:40 AM - 8:40 AM
United Airlines
0 Stops
3h 44m
CHI - BOI
$ 314
Kiwi
Pick dates

How to find the cheapest flight from Chicago (CHI) to Boise (BOI)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Chicago (CHI) to Boise (BOI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Chicago (CHI) to Boise (BOI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.