Cheap Flights from Boise ID to Phoenix Sky Harbor AZ from $220

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Flight deals from Boise to Phoenix Sky Harbor

Looking for a cheap last-minute deal or the best round-trip flight from Boise Airport to Phoenix Sky Harbor Airport? If you want to travel next month, round-trip fares start from $229. Find the lowest prices on one-way and round-trip tickets right here.

Phoenix.$220 per passenger.Departing Tue, Nov 10, returning Sat, Nov 14.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Boise on Tue, Nov 10, arriving in Phoenix Sky Harbor.Inbound direct flight with Alaska Airlines departing from Phoenix Sky Harbor on Sat, Nov 14, arriving in Boise.Price includes taxes and charges.From $220, select.

Phoenix.$220 per passenger.Departing Tue, Oct 6, returning Tue, Oct 13.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Boise on Tue, Oct 6, arriving in Phoenix Sky Harbor.Inbound direct flight with Alaska Airlines departing from Phoenix Sky Harbor on Tue, Oct 13, arriving in Boise.Price includes taxes and charges.From $220, select.

Phoenix.$221 per passenger.Departing Thu, Sep 10, returning Mon, Sep 14.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Boise on Thu, Sep 10, arriving in Phoenix Sky Harbor.Inbound direct flight with Alaska Airlines departing from Phoenix Sky Harbor on Mon, Sep 14, arriving in Boise.Price includes taxes and charges.From $221, select.

Phoenix.$229 per passenger.Departing Sat, Aug 22, returning Thu, Aug 27.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Boise on Sat, Aug 22, arriving in Phoenix Sky Harbor.Inbound direct flight with Alaska Airlines departing from Phoenix Sky Harbor on Thu, Aug 27, arriving in Boise.Price includes taxes and charges.From $229, select.

Phoenix.$238 per passenger.Departing Mon, Oct 26, returning Fri, Nov 13.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Boise on Mon, Oct 26, arriving in Phoenix Sky Harbor.Inbound direct flight with Alaska Airlines departing from Phoenix Sky Harbor on Fri, Nov 13, arriving in Boise.Price includes taxes and charges.From $238, select.

Phoenix.$247 per passenger.Departing Thu, Jul 23, returning Wed, Jul 29.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Boise on Thu, Jul 23, arriving in Phoenix Sky Harbor.Inbound indirect flight with Frontier Airlines, departing from Phoenix Sky Harbor on Wed, Jul 29, arriving in Boise.Price includes taxes and charges.From $247, select.

Phoenix.$248 per passenger.Departing Thu, Jul 30, returning Sun, Aug 2.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Boise on Thu, Jul 30, arriving in Phoenix Sky Harbor.Inbound indirect flight with Frontier Airlines, departing from Phoenix Sky Harbor on Sun, Aug 2, arriving in Boise.Price includes taxes and charges.From $248, select.

Phoenix.$251 per passenger.Departing Thu, Oct 1, returning Tue, Dec 1.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Boise on Thu, Oct 1, arriving in Phoenix Sky Harbor.Inbound indirect flight with Alaska Airlines, departing from Phoenix Sky Harbor on Tue, Dec 1, arriving in Boise.Price includes taxes and charges.From $251, select.

Phoenix.$256 per passenger.Departing Fri, Sep 18, returning Sun, Oct 4.Round-trip flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departing from Boise on Fri, Sep 18, arriving in Phoenix Sky Harbor.Inbound direct flight with Southwest Airlines departing from Phoenix Sky Harbor on Sun, Oct 4, arriving in Boise.Price includes taxes and charges.From $256, select.

Phoenix.$266 per passenger.Departing Thu, Dec 10, returning Sat, Dec 12.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Boise on Thu, Dec 10, arriving in Phoenix Sky Harbor.Inbound direct flight with Alaska Airlines departing from Phoenix Sky Harbor on Sat, Dec 12, arriving in Boise.Price includes taxes and charges.From $266, select.

Phoenix.$267 per passenger.Departing Wed, Jul 22, returning Thu, Aug 6.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Boise on Wed, Jul 22, arriving in Phoenix Sky Harbor.Inbound direct flight with Alaska Airlines departing from Phoenix Sky Harbor on Thu, Aug 6, arriving in Boise.Price includes taxes and charges.From $267, select.

Phoenix.$269 per passenger.Departing Fri, Jul 17, returning Mon, Jul 20.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Boise on Fri, Jul 17, arriving in Phoenix Sky Harbor.Inbound direct flight with Alaska Airlines departing from Phoenix Sky Harbor on Mon, Jul 20, arriving in Boise.Price includes taxes and charges.From $269, select.

Phoenix.$270 per passenger.Departing Thu, Feb 4, returning Sun, Feb 7.Round-trip flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Boise on Thu, Feb 4, arriving in Phoenix Sky Harbor.Inbound direct flight with Alaska Airlines departing from Phoenix Sky Harbor on Sun, Feb 7, arriving in Boise.Price includes taxes and charges.From $270, select.

Phoenix.$304 per passenger.Departing Sat, Dec 19, returning Sat, Jan 2.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Boise on Sat, Dec 19, arriving in Phoenix Sky Harbor.Inbound indirect flight with Delta, departing from Phoenix Sky Harbor on Sat, Jan 2, arriving in Boise.Price includes taxes and charges.From $304, select.

Phoenix.$396 per passenger.Departing Sat, Dec 19, returning Sat, Jan 2.Round-trip flight with American Airlines.Outbound direct flight with American Airlines departing from Boise on Sat, Dec 19, arriving in Phoenix Sky Harbor.Inbound direct flight with American Airlines departing from Phoenix Sky Harbor on Sat, Jan 2, arriving in Boise.Price includes taxes and charges.From $396, select.

Find the cheapest month to fly from Boise to Phoenix Sky Harbor

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boise to Phoenix Sky Harbor flights are currently cheapest in October.

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Direct flights from Boise to Phoenix Sky Harbor

Boise to Phoenix Sky Harbor: Alternative routes

Compare routes from Boise to Phoenix below. You may find an airport to fly into that's cheaper, faster, or easier than Phoenix Sky Harbor.

Boise to Phoenix: Flight information

The things to know before you go.

Cheapest flight found	$220
Cheapest month to fly	October
Average flight time	2 hrs, 16 mins
Most popular airline	American Airlines
Average flights per week	126

Finding cheap flights from Boise to Phoenix Sky Harbor: Frequently asked questions

How much are round-trip flights from Boise to Phoenix Sky Harbor?

The best price we found for a round-trip flight from Boise to Phoenix Sky Harbor is $220. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Boise to Phoenix Sky Harbor?

2 hours and 16 minutes is the average flight time from Boise to Phoenix Sky Harbor.

Which airlines fly direct from Boise to Phoenix Sky Harbor?

American Airlines, SkyWest Airlines and Southwest Airlines fly direct from Boise to Phoenix Sky Harbor.

How many flights are there a week from Boise to Phoenix Sky Harbor?

There are 126 flights per week flying from Boise to Phoenix Sky Harbor, as of July 2026.

When is the cheapest time to fly from Boise to Phoenix Sky Harbor?

The cheapest month to fly from Boise to Phoenix Sky Harbor is usually October.

Which upcoming date is cheapest to fly from Boise Airport to Phoenix Sky Harbor Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boise Airport to Phoenix Sky Harbor Airport on Tuesday, October 6, 2026.

Can I get a direct flight from Boise Airport to Phoenix Sky Harbor Airport?

Yes – the average flight time is 2 hours and 16 minutes.

How can I find the best flight deal to Phoenix Sky Harbor?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Phoenix Sky Harbor but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Phoenix?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Phoenix is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly with from Boise Airport to Phoenix Sky Harbor?

Currently, Alaska Airlines offers the cheapest flight tickets to Phoenix Sky Harbor.

Flying from Boise Airport (BOI) to Phoenix Sky Harbor Airport (PHX): what you need to know

The average duration of a direct flight from Boise Airport to Phoenix Sky Harbor Airport is 2 hours 15 minutes.
Boise and Phoenix are both in the UTC-7 timezone. That means you won't have to adjust your watch after you land.
Flights from BOI to PHX start from 05:25 — the earliest with Southwest Airlines. The last service of the day is at 18:37 with Alaska Airlines. Overall, you can choose from 39 weekly Boise Airport to Phoenix Sky Harbor Airport flights.
Your BOI to PHX flight won't wait if you're running late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.
During popular months such as October, it's best to get to the airport earlier. Arrive two hours before domestic departures and four hours ahead of international flights when you travel during a peak period in general.
You can travel nonstop to Phoenix, the United States. Prepare for takeoff with one of these airlines offering direct flights from Boise Airport to Phoenix Sky Harbor Airport:
Most travelers choose to fly with American Airlines on this route.
American Airlines leads the way as the most punctual carrier for BOI to PHX flights, with 87.27% of services landing as scheduled.
Consider adding a stopover when booking your ticket from Boise Airport to Phoenix Sky Harbor Airport. Simply uncheck 'Direct flights only' to break up your journey, or perhaps explore a new destination along the way. Here are some options between BOI and PHX:
- Harry Reid International Airport
- Salt Lake City Airport
- Long Beach Municipal Airport

How to find the cheapest flights from Boise Airport (BOI) to Phoenix Sky Harbor Airport (PHX)

$89 is currently the lowest price for a one-way Boise Airport to Phoenix Sky Harbor Airport flight. A return flight starts at $220. These prices may change depending on demand and availability.
To find cheap tickets from BOI to PHX, book early. Airlines tend to offer lower fares when flights are first made available.
May is the cheapest month for flights from Boise Airport to Phoenix Sky Harbor Airport. If you're looking to fly during a different time of year, the 'Whole month' tool will show you the lowest prices across every month.
You won't have to check back in every day to find out if fares have dropped when you create a Price Alert. We'll send you an update the moment there's a change in price on cheap flights from BOI to PHX.
Select your preferred arrival and departure times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Boise Airport to Phoenix Sky Harbor Airport.

Handy information about Boise Airport (BOI)

You'll find BOI at 3201 Airport Way.
Boise Airport maintains a solid on-time performance, reducing the likelihood of delays. Departures from BOI arrive on schedule 84% of the time.
To get to Boise Airport from central Boise, it'll take about 15 minutes if you're planning to drive. Of course, this depends on traffic. It's approximately 6 kilometers from the airport to the city center.
Expect a trip time of about 30 minutes when using public transport.
Searching for a convenient hotel near BOI? If you've booked an early flight from Boise Airport to Phoenix Sky Harbor Airport, these accommodation options will have you sleeping moments from check-in:

Arriving at Phoenix Sky Harbor Airport (PHX)

Consider booking a hotel close to PHX if you're catching a late Boise Airport to Phoenix Sky Harbor Airport flight. Settle into one of these accommodation options and avoid the hassle of a long transfer:
Say yes to new adventures by picking up a Phoenix Sky Harbor Airport rental car. Grab your wheels from Europcar, Dollar or Thrifty and explore beyond Phoenix's usual tourist stops.
To get the lowest price, book your vehicle from Phoenix Sky Harbor Airport about one week before you set off.

When to fly to Phoenix Sky Harbor Airport (PHX)

The quietest month for a flight from Boise Airport to Phoenix Sky Harbor Airport is March, while April is the busiest. Choose the ideal time to go to Phoenix based on whether you prefer a bustling atmosphere or a more laid-back vibe.
When booking your flight from Boise Airport to Phoenix Sky Harbor Airport, consider the kind of weather you like. July is the warmest month in Phoenix, with the temperature ranging from 27ºC (81ºF) to 45ºC (113ºF).
Search for cheap tickets from BOI to PHX in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 4ºC (39ºF) and 21ºC (70ºF) on average.

Explore more of the United States

You've visited Phoenix, now it's time to discover other parts of the United States. Travel around 483 kilometers west to San Diego to check off its top attractions. From San Diego Zoo to San Diego Balboa Park and USS Midway Museum, your itinerary will be busy.
Las Vegas is another standout destination in the United States and is around 418 kilometers north-west of Phoenix. No trip is complete without seeing Ciudad del Pecado o Las Vegas, Las Vegas Strip and Fountains of Bellagio.