Cheap Flights from Phoenix Sky Harbor to Boise from $420

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Flight deals from Phoenix Sky Harbor to Boise

Looking for a cheap last-minute deal or the best return flight from Phoenix Sky Harbor Airport to Boise Airport? If you want to travel next month, return fares start from $427. Find the lowest prices on one-way and return tickets right here.

Boise.$420 per passenger.Departing Tue, 6 Oct, returning Tue, 6 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Tue, 6 Oct, arriving in Boise.Inbound direct flight with Southwest Airlines departs from Boise on Tue, 6 Oct, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $420, select.

Boise.$421 per passenger.Departing Thu, 24 Sep, returning Tue, 29 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Thu, 24 Sep, arriving in Boise.Inbound direct flight with Southwest Airlines departs from Boise on Tue, 29 Sep, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $421, select.

Boise.$421 per passenger.Departing Tue, 10 Nov, returning Sat, 14 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Tue, 10 Nov, arriving in Boise.Inbound direct flight with Southwest Airlines departs from Boise on Sat, 14 Nov, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $421, select.

Boise.$427 per passenger.Departing Thu, 6 Aug, returning Thu, 13 Aug.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Thu, 6 Aug, arriving in Boise.Inbound indirect flight with Frontier Airlines, departs from Boise on Thu, 13 Aug, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $427, select.

Boise.$427 per passenger.Departing Wed, 22 Jul, returning Tue, 28 Jul.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Wed, 22 Jul, arriving in Boise.Inbound indirect flight with Frontier Airlines, departs from Boise on Tue, 28 Jul, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $427, select.

Boise.$437 per passenger.Departing Sat, 22 Aug, returning Sun, 23 Aug.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Sat, 22 Aug, arriving in Boise.Inbound direct flight with Southwest Airlines departs from Boise on Sun, 23 Aug, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $437, select.

Boise.$440 per passenger.Departing Thu, 30 Jul, returning Tue, 4 Aug.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Thu, 30 Jul, arriving in Boise.Inbound indirect flight with Frontier Airlines, departs from Boise on Tue, 4 Aug, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $440, select.

Boise.$454 per passenger.Departing Fri, 30 Oct, returning Mon, 2 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Fri, 30 Oct, arriving in Boise.Inbound direct flight with Southwest Airlines departs from Boise on Mon, 2 Nov, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $454, select.

Boise.$474 per passenger.Departing Wed, 22 Jul, returning Sat, 25 Jul.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Wed, 22 Jul, arriving in Boise.Inbound direct flight with Southwest Airlines departs from Boise on Sat, 25 Jul, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $474, select.

Boise.$494 per passenger.Departing Sun, 26 Jul, returning Sat, 1 Aug.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Sun, 26 Jul, arriving in Boise.Inbound direct flight with Southwest Airlines departs from Boise on Sat, 1 Aug, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $494, select.

Boise.$509 per passenger.Departing Tue, 1 Dec, returning Mon, 7 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Phoenix Sky Harbor on Tue, 1 Dec, arriving in Boise.Inbound indirect flight with Southwest Airlines, departs from Boise on Mon, 7 Dec, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $509, select.

Boise.$540 per passenger.Departing Wed, 23 Dec, returning Sun, 3 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Phoenix Sky Harbor on Wed, 23 Dec, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Sun, 3 Jan, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $540, select.

Boise.$540 per passenger.Departing Sat, 9 Jan, returning Sat, 23 Jan.Return flight with United.Outbound indirect flight with United, departs from Phoenix Sky Harbor on Sat, 9 Jan, arriving in Boise.Inbound indirect flight with United, departs from Boise on Sat, 23 Jan, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $540, select.

Boise.$543 per passenger.Departing Sat, 15 May, returning Sat, 22 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Phoenix Sky Harbor on Sat, 15 May, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Sat, 22 May, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $543, select.

Boise.$544 per passenger.Departing Fri, 12 Mar, returning Fri, 26 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Phoenix Sky Harbor on Fri, 12 Mar, arriving in Boise.Inbound indirect flight with Delta, departs from Boise on Fri, 26 Mar, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $544, select.

Boise.$558 per passenger.Departing Mon, 29 Jun, returning Thu, 2 Jul.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Mon, 29 Jun, arriving in Boise.Inbound indirect flight with Frontier Airlines, departs from Boise on Thu, 2 Jul, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $558, select.

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

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

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Direct flights from Phoenix Sky Harbor to Boise

Phoenix Sky Harbor to Boise: Alternative routes

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

Boise

5km from central Boise

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from $420

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Phoenix to Boise: Flight information

The things to know before you go.

Cheapest flight found	$420
Cheapest month to fly	October
Average flight time	2 hrs, 15 mins
Most popular airline	American Airlines
Average flights per week	146

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

How much are return flights from Phoenix Sky Harbor to Boise?

The best price we found for a return flight from Phoenix Sky Harbor to Boise is $420. 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 Phoenix Sky Harbor to Boise?

2 hours and 15 minutes is the average flight time from Phoenix Sky Harbor to Boise.

Which airlines fly direct from Phoenix Sky Harbor to Boise?

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

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

As of June 2026, there are 146 flights per week flying from Phoenix Sky Harbor to Boise.

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

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

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

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

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

Yes – the average flight time is 2 hours and 15 minutes.

How can I find the best flight deal to Boise?

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 Boise 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 Boise?

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

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

Currently, Southwest Airlines offers the cheapest flight tickets to Boise.

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

The average time for a direct flight from Phoenix Sky Harbour Airport to Boise Airport is 2 hours 15 minutes.
Each week, there are 39 Phoenix Sky Harbour Airport to Boise Airport flights. If you'd like to take off as soon as possible, pick the 07:45 Southwest Airlines flight. If you'd rather make the most of your time before flying, the last departure is at 21:50 with Southwest Airlines.
Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Be at the airport with enough time to board your PHX to BOI flight.
Flying during a peak month such as April? Major public holidays and other popular periods can mean longer lines and delays at security. Be extra cautious and arrive up to four hours before international flights and two hours before a domestic departure.
With direct flights from Phoenix Sky Harbour Airport to Boise Airport available through various airlines, getting to Boise (and then other corners of the United States) is a cinch. Here's who you can fly nonstop with:
American Airlines is the airline most travellers choose for this route.
Alaska Airlines is the most punctual carrier operating PHX to BOI flights. An impressive 86.12% of its services on this route arrive as planned.
If you want to explore another city along the way, just uncheck 'Direct flights only' when searching for your ticket from Phoenix Sky Harbour Airport to Boise Airport. These are the most popular stopovers between PHX and BOI:
- Harry Reid International Airport
- Salt Lake City Airport
- Long Beach Municipal Airport

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

Right now, $189 is the lowest price we've seen for a one-way Phoenix Sky Harbour Airport to Boise Airport flight. The best price for a return ticket is $420. Remember that fares can change due to availability when booking.
Get cheap tickets from PHX to BOI by booking two months ahead. According to our research, that's the sweet spot for finding a bargain.
Schedule your trip for July. That's the cheapest month for flights from Phoenix Sky Harbour Airport to Boise Airport. If your travel dates are flexible, use the 'Whole month' tool to find the lowest price across every month.
Stay on top of deals for cheap flights from PHX to BOI by setting up a Price Alert. We'll send you an email or push notification on the app when a new low fare is offered.
Choose your ideal 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 Phoenix Sky Harbour Airport to Boise Airport.

Handy information about Phoenix Sky Harbour Airport (PHX)

PHX is located at 3400 Sky Harbour Boulevard.
80% of flights departing from Phoenix Sky Harbour Airport arrive at their destination on schedule. Given its strong on-time performance, delays are unlikely when jetting out of PHX.
Phoenix Sky Harbour Airport is about 5 kilometres from central Phoenix. If you're driving, catching a taxi or ride-sharing from the centre, it'll take you 10 minutes or so to get there, depending on the traffic.
Expect a journey time of roughly 25 minutes when using public transport.
Searching for a handy hotel near PHX? If you've booked an early flight from Phoenix Sky Harbour Airport to Boise Airport, these accommodation options will have you moments from your departure lounge:

Arriving at Boise Airport (BOI)

If you're getting in on a late Phoenix Sky Harbour Airport to Boise Airport flight, few things top the convenience of being near the terminal. Grab your luggage from the carousel and then be resting soon after at one of these hotels near BOI:
Get on the fast track to adventure by picking up a Boise Airport rental car. Grab a set of wheels from Budget, Alamo or Avis and explore beyond Boise's main sights.
Booking your vehicle from Boise Airport about one week ahead gives you the best shot at securing a great deal.

When to fly to Boise Airport (BOI)

The quietest month for a flight from Phoenix Sky Harbour Airport to Boise Airport is March, while October is the busiest. Pick the best time to visit Boise based on whether you prefer a more fast-paced or easygoing experience.
Lock in your flight from Phoenix Sky Harbour Airport to Boise Airport for July if you want to visit Boise during its warmest month. You can expect temperatures of between 15ºC and 35ºC.
If you want to travel in cooler conditions, search for a cheap ticket from PHX to BOI in January. Temperatures average between -11ºC and 5ºC then.

Explore more of the United States

You've visited Boise, now it's time to discover other corners of the United States. Travel around 467 kilometres north to Spokane to tick off its popular sights. From Riverside State Park to Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes, you'll have a full itinerary ahead.
Around 483 kilometres south-east of Boise, Salt Lake City is another favourite stop in the United States. Experience the best of this destination with a visit to Salt Lake Utah Temple, Temple Square and Salt Lake City Tabernacle.