$136 Cheap Frontier Airlines flights Phoenix (PHX) to Boise (BOI)

View $136 flight on Thu, Feb 26, 2026Opens in a new window

$136 Cheap Frontier Airlines flights Phoenix (PHX) to Boise (BOI)

Prices were available within the past 7 days and start at $136 for one-way flights and $170 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Jan 22 - Mon, Jan 26
PHX
Phoenix
BOI
Boise
$170 Roundtrip, found 1 day ago
$170
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Jan 22 from Phoenix to Boise, returning Mon, Jan 26, priced at $170 found 1 day ago

Find the cheapest month to fly from Phoenix (PHX) to Boise (BOI)

August is typically the cheapest month to fly

From $91 - $255 per traveler.

Alternative airports near Boise

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Boise Airport BOI. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $170
BOI
Boise Airport
CheapestClosest
Average driving time to city center8 min
Flights from $170
Flights from Phoenix (PHX) to Boise (BOI)
Origin airport
Sky Harbor Intl.
Destination airport
Boise
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Delta
Distance
1177 km
Average flight time
2 hours 30 mins