Skip to content

Get United's best fares today on flights from Ontario to Boise from

Select journey type

Enter to select travel class and passengers

Looking for additional flights from Ontario to Boise?

FromToDatesFare TypePrice

Ontario (ONT)

Boise (BOI)

Depart: 01/13/20

01/17/20

Roundtrip
from
$371*
Viewed:14hoursago

Ontario (ONT)

Boise (BOI)

Depart: 11/25/19

12/02/19

Roundtrip
from
$614*
Viewed:17hoursago

Ontario (ONT)

Boise (BOI)

Depart: 02/11/20

02/19/20

Roundtrip
from
$297*

Ontario (ONT)

Boise (BOI)

Depart: 11/20/19

11/23/19

Roundtrip
from
$425*

Ontario (ONT)

Boise (BOI)

Depart: 01/31/20

02/14/20

Roundtrip
from
$342*

Ontario (ONT)

Boise (BOI)

Depart: 01/26/20

02/09/20

Roundtrip
from
$322*

Ontario (ONT)

Boise (BOI)

Depart: 02/03/20

02/17/20

Roundtrip
from
$442*

Ontario (ONT)

Boise (BOI)

Depart: 01/28/20

02/11/20

Roundtrip
from
$194*

Ontario (ONT)

Boise (BOI)

Depart: 02/01/20

02/15/20

Roundtrip
from
$272*

Ontario (ONT)

Boise (BOI)

Depart: 02/08/20

02/22/20

Roundtrip
from
$326*

*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.