Cheap flights from Boise to Phoenix from $109

In general, September is the cheapest month to fly from Boise to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $206. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of September, then departing from Boise during the month July is also very affordable. Most momondo users find prices during this month for around $227.

On average, the least expensive day to fly to Phoenix Sky Harbor Intl Airport from Boise is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $349. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $482. These prices are subject to change though, so be sure to set up a Price Alert for flights to Phoenix Sky Harbor Intl Airport.

In the afternoon is the cheapest time of day to fly from Boise to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $352. Flying to Phoenix Sky Harbor Intl Airport in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $399. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Phoenix Sky Harbor Intl Airport from Boise when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $280 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix Sky Harbor Intl Airport from Boise for as low as $211 on momondo.

There are 4 cabin classes available to choose from on Boise to Phoenix Sky Harbor Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

American Airlines, Southwest and Alaska Airlines are the top three most popular airlines that fly to Phoenix Sky Harbor Intl Airport from Boise according to our data. American Airlines is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Phoenix Sky Harbor Intl Airport. Keep in mind that there are 6 different airlines that fly to Phoenix Sky Harbor Intl Airport on a routine basis, so you have a few additional options to choose from.

As of May 2026, 5 flights take off from Boise and land in Phoenix Sky Harbor Intl Airport each day. The most common flight departure time for this route is 8:00AM, with 35% of daily flights taking off at noon.

38 flights are operational weekly from Boise to Phoenix Sky Harbor Intl Airport as of May 2026. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.