Earn point on your loyalty program!arrow arc left

Cheap flights from Phoenix (PHX) 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 Phoenix (PHX) to Boise (BOI)

How to find the cheapest flight from Phoenix (PHX) 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 Phoenix (PHX) 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 Phoenix (PHX) 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 Phoenix to Boise in November , December 2026

20 Nov - 14 Dec $ 141.00
PHX
Phoenix
Allegiant Air
DIRECT
BOI
Boise
BOI
Boise
Allegiant Air
DIRECT
PHX
Phoenix
Pick dates
18 Nov - 10 Dec $ 321.00
PHX
Phoenix
Alaska Airlines
1 STOPS
BOI
Boise
BOI
Boise
Alaska Airlines
1 STOPS
PHX
Phoenix
Pick dates
13 Nov - 02 Dec $ 415.00
PHX
Phoenix
Alaska Airlines
DIRECT
BOI
Boise
BOI
Boise
Alaska Airlines
DIRECT
PHX
Phoenix
Pick dates

Last minute flights from Phoenix to Boise

20 Nov - 30 Nov $ 248.00
PHX
Phoenix
Allegiant Air
DIRECT
BOI
Boise
BOI
Boise
Allegiant Air
DIRECT
PHX
Phoenix
Pick dates
18 Nov - 30 Nov $ 332.00
PHX
Phoenix
Allegiant Air
1 STOPS
BOI
Boise
BOI
Boise
Allegiant Air
DIRECT
PHX
Phoenix
Pick dates
16 Nov - 30 Nov $ 406.00
PHX
Phoenix
Allegiant Air
DIRECT
BOI
Boise
BOI
Boise
Allegiant Air
DIRECT
PHX
Phoenix
Pick dates

One-way flights to Boise from Phoenix

8:50 AM - 8:50 AM
Allegiant Air
0 Stops
2h 11m
PHX - BOI
$ 88
Kiwi
Pick dates
8:30 AM - 11:00 AM
Frontier Airlines
1 Stops
5h 24m
PHX - BOI
$ 190
Kiwi
Pick dates
7:46 PM - 7:46 PM
Alaska Airlines
0 Stops
2h 13m
PHX - BOI
$ 245
Kiwi
Pick dates

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