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CA $154 Cheap Flights from Phoenix (PHX) to Boise (BOI)

View CA $154 flight on Sat, Aug 22, 2026Opens in a new window

Popular airlines from Sky Harbor International Airport (PHX) to Boise Airport (BOI)

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Cheap flights from Phoenix (PHX) to Boise (BOI)

Prices were available within the past 7 days and start at CA $154 for one-way flights and CA $321 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Oct 17 - Sun, Oct 25
PHX
Phoenix
BOI
Boise
CA $321 Roundtrip, found 3 days ago
CA $321
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Oct 17 from Phoenix to Boise, returning Sun, Oct 25, priced at CA $321 found 3 days ago
Alaska Airlines
Sat, Oct 17 - Sun, Oct 25
PHX
Phoenix
BOI
Boise
CA $335 Roundtrip, found 3 days ago
CA $335
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Oct 17 from Phoenix to Boise, returning Sun, Oct 25, priced at CA $335 found 3 days ago
American Airlines
Wed, Aug 19 - Sun, Aug 23
PHX
Phoenix
BOI
Boise
CA $348 Roundtrip, found 5 days ago
CA $348
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Aug 19 from Phoenix to Boise, returning Sun, Aug 23, priced at CA $348 found 5 days ago
Alaska Airlines
Sat, Oct 17 - Sun, Oct 25
PHX
Phoenix
BOI
Boise
CA $349 Roundtrip, found 3 days ago
CA $349
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Oct 17 from Phoenix to Boise, returning Sun, Oct 25, priced at CA $349 found 3 days ago
Alaska Airlines
Wed, Aug 19 - Sun, Aug 23
PHX
Phoenix
BOI
Boise
CA $351 Roundtrip, found 5 days ago
CA $351
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Aug 19 from Phoenix to Boise, returning Sun, Aug 23, priced at CA $351 found 5 days ago
American Airlines
Wed, Aug 19 - Sun, Aug 23
PHX
Phoenix
BOI
Boise
CA $365 Roundtrip, found 5 days ago
CA $365
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Aug 19 from Phoenix to Boise, returning Sun, Aug 23, priced at CA $365 found 5 days ago
Alaska Airlines
Wed, Aug 19 - Sun, Aug 23
PHX
Phoenix
BOI
Boise
CA $370 Roundtrip, found 5 days ago
CA $370
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Aug 19 from Phoenix to Boise, returning Sun, Aug 23, priced at CA $370 found 5 days ago
Alaska Airlines
Sat, Oct 17 - Sun, Oct 25
PHX
Phoenix
BOI
Boise
CA $371 Roundtrip, found 3 days ago
CA $371
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Oct 17 from Phoenix to Boise, returning Sun, Oct 25, priced at CA $371 found 3 days ago
American Airlines
Wed, Aug 19 - Sun, Aug 23
PHX
Phoenix
BOI
Boise
CA $372 Roundtrip, found 5 days ago
CA $372
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Aug 19 from Phoenix to Boise, returning Sun, Aug 23, priced at CA $372 found 5 days ago
Delta
Wed, Aug 19 - Sun, Aug 23
PHX
Phoenix
BOI
Boise
CA $376 Roundtrip, found 5 days ago
CA $376
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Aug 19 from Phoenix to Boise, returning Sun, Aug 23, priced at CA $376 found 5 days ago

Frequently asked questions

What is the cheapest month to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI)?
January is typically the cheapest month to fly from Phoenix Sky Harbor International Airport (PHX) to Boise (BOI), with average return fares of approximately £169. This is about 17% lower than the average price throughout the year. January often sees lower prices because it falls after the busy holiday travel season, when demand tends to decrease. Other cheap months to fly from Phoenix (PHX) to Boise (BOI) include August and September.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI)?
Enter PHX to BOI and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI)?
To find a cheap flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI)?
The best airline to fly with from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI) will differ from traveller to traveller. If you like to fly early, WN offers early morning flights. If price is the most important factor, WN typically offers the lowest fares. WN offers the most daily flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI), which is brilliant if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI)?
The best time to fly from Phoenix Sky Harbor International Airport (PHX) to Boise (BOI) for the best value is typically in January or August. You can expect to find return flights for around £169 during these months. While we don't have specific popularity data for these months, these prices suggest a good opportunity to find a deal, allowing you to save on your trip.*Prices based on flights available on Expedia in the last year.
How many flights per day from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI)?
When flying from Phoenix Sky Harbor International (PHX) to Boise (BOI), you'll find approximately 6 nonstop flights per day. For even more choice, look at flights that include layovers, as there are around 108 connecting flights per day. Some common connection points include Seattle - Tacoma International (SEA), Harry Reid International (LAS), and Los Angeles International (LAX).
What is the earliest flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from PHX to BOI. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI)?
You'll find the most flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI) on a Friday, with around 76 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, Alaska Airlines, and United Airlines. Friday offers notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI)?
The most popular departure times for flights from Phoenix, AZ (PHX-Sky Harbor Intl.) (PHX) to Boise, ID (BOI) (BOI) are in the early morning, from 6am to 9am. Approximately 24% of passengers prefer this time window. Many major carriers, including Southwest Airlines, Alaska Airlines and United Airlines, offer flights during this window. These times work well because you can get an early start to your travel day and arrive in Boise with plenty of time.
How long does it take to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI)?
Direct flights from PHX to BOI usually take about 2 hours 20 minutes, traveling roughly 736 miles. If you opt for a connecting flight, expect to add around 3 hours to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI)?
Select the "Business class" and "First class" filters when looking for PHX to BOI flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI) flight with Expedia?
It's easy to earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI) at the last minute?
Typically, booking a last minute flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI) flight and hotel package?
Securing a Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI)?
If you booked your Phoenix, AZ (PHX-Sky Harbor Intl.) to Boise, ID (BOI) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
Boise
Airlines serving
Alaska Airlines, American Airlines, Delta
Roundtrip price
CA $321
Distance
1177 km
Average flight time
3 hours 6 mins

Book with confidence

Phoenix to Boise Flights

The easy way to book your flights from Phoenix to Boise 

With Expedia, it’s simple to find and book flights to Boise from Phoenix whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Boise, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Phoenix to Boise today, tomorrow, or this week.  

 

Save dollars with cheap flights from Sky Harbor Intl., PHX to Boise, BOI 

Sort your search results by price to find great deals on your flight from Phoenix to Boise—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Boise from Phoenix currently is just CA $321 rising to CA $376.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Boise  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Boise from Phoenix 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Boise with Expedia today.

Phoenix to Boise Flights

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*Available to Expedia members.