Cheap flights from Phoenix Sky Harbor Intl Airport to Boise from $106

The month of January is, on average, the cheapest month to fly to Boise from Phoenix Sky Harbor Intl Airport, with most prices found around $177. If you aren’t able to travel during the month of January, then book flights to Boise from Phoenix Sky Harbor Intl Airport during October instead. Flights to Boise in October, while not as cheap as those in January, still average around $211.

Our data shows that Tuesday is the least expensive day to fly to Boise. Tickets to fly out on this day can be as low as $249. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $325. These prices are subject to change though, so be sure to set up a Price Alert for flights to Boise.

Our data shows that the cheapest Phoenix Sky Harbor Intl Airport to Boise flights are usually those with departure times in the afternoon. Our users have found flights to Boise in the afternoon for as low as $213. At noon is when there is more demand to fly to Boise, so prices are often more expensive at around $282 per ticket.

Fly from Phoenix Sky Harbor Intl to Boise Air Term. Gowen Fld for the best Phoenix Sky Harbor Intl - Boise Air Term. Gowen Fld flight prices

You are more likely to see cheaper flights to Boise from Phoenix Sky Harbor Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Boise for around $256 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boise from Phoenix Sky Harbor Intl Airport for as low as $192 on momondo.

You could potentially save up to 2% on your flight if you consider stops on a Phoenix Sky Harbor Intl Airport to Boise flight.

As of May 2026, prices for Phoenix Sky Harbor Intl Airport to Boise flights are approximately 206% more expensive when compared to flights at the same time last year.

Frontier, Alaska Airlines, and Southwest are the most popular carriers operating from Phoenix Sky Harbor Intl to Boise Air Term. Gowen Fld

American Airlines, Southwest and Alaska Airlines are the top three most popular airlines that fly to Boise from Phoenix Sky Harbor Intl Airport according to our data. American Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Boise. Keep in mind that there are 5 different airlines that fly to Boise on a routine basis, so you have a few additional options to choose from.

The number of flights available between Phoenix Sky Harbor Intl Airport and Boise is 4 per day as of May 2026. The most frequent departure time is 2:00PM, with 44% of daily flights leaving in the afternoon.

The number of flights available between Phoenix Sky Harbor Intl Airport and Boise is 28 per week as of May 2026. The most frequent departure day is Fri, with 21% of weekly flights leaving on this day.