$119 Cheap Flights from Boise (BOI) to Phoenix (PHX)

View $119 flight on Wed, Oct 28, 2026Opens in a new window

Popular airlines from Boise Airport (BOI) to Phoenix Sky Harbor Intl. Airport (PHX)

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Cheap Flights from Boise to Phoenix (BOI-PHX)

Prices were available within the past 7 days and start at $119 for one-way flights and $173 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Sep 1 - Wed, Sep 9
BOI
Boise
PHX
Phoenix
$173 Roundtrip, found 1 day ago
$173
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Tue, Sep 1 from Boise to Phoenix, returning Wed, Sep 9, priced at $173 found 1 day ago
American Airlines
Tue, Sep 29 - Wed, Sep 30
BOI
Boise
PHX
Phoenix
$173 Roundtrip, found 2 days ago
$173
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Sep 29 from Boise to Phoenix, returning Wed, Sep 30, priced at $173 found 2 days ago
American Airlines
Wed, Dec 2 - Tue, Dec 8
BOI
Boise
PHX
Phoenix
$179 Roundtrip, found 3 days ago
$179
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Dec 2 from Boise to Phoenix, returning Tue, Dec 8, priced at $179 found 3 days ago
Delta
Tue, Sep 1 - Wed, Sep 9
BOI
Boise
PHX
Phoenix
$183 Roundtrip, found 1 day ago
$183
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Sep 1 from Boise to Phoenix, returning Wed, Sep 9, priced at $183 found 1 day ago
Southwest Airlines
Wed, Dec 2 - Tue, Dec 8
BOI
Boise
PHX
Phoenix
$185 Roundtrip, found 3 days ago
$185
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Wed, Dec 2 from Boise to Phoenix, returning Tue, Dec 8, priced at $185 found 3 days ago
Southwest Airlines
Wed, Sep 9 - Tue, Sep 15
BOI
Boise
PHX
Phoenix
$192 Roundtrip, found 2 days ago
$192
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Wed, Sep 9 from Boise to Phoenix, returning Tue, Sep 15, priced at $192 found 2 days ago
Southwest Airlines
Wed, Oct 14 - Sat, Oct 17
BOI
Boise
PHX
Phoenix
$197 Roundtrip, found 5 days ago
$197
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Wed, Oct 14 from Boise to Phoenix, returning Sat, Oct 17, priced at $197 found 5 days ago
Southwest Airlines
Wed, Dec 9 - Sat, Dec 12
BOI
Boise
PHX
Phoenix
$197 Roundtrip, found 2 days ago
$197
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Wed, Dec 9 from Boise to Phoenix, returning Sat, Dec 12, priced at $197 found 2 days ago
United
Wed, Sep 2 - Wed, Sep 9
BOI
Boise
PHX
Phoenix
$201 Roundtrip, found 21 hours ago
$201
Roundtrip
found 21 hours ago
Select United flight, departing Wed, Sep 2 from Boise to Phoenix, returning Wed, Sep 9, priced at $201 found 21 hours ago
Alaska Airlines
Tue, Aug 18 - Fri, Aug 28
BOI
Boise
PHX
Phoenix
$204 Roundtrip, found 1 day ago
$204
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Aug 18 from Boise to Phoenix, returning Fri, Aug 28, priced at $204 found 1 day ago

What you need to know for your flight from Boise to Sky Harbor Intl.

Boise (BOI) to Phoenix (PHX) at a glance

Experience a range of airlines offering weekly flights from Boise (BOI) to Phoenix (PHX) on this domestic short-haul route. You can choose between full-service and low-cost carriers to discover the flight time and itinerary that aligns with your budget and travel plans. As you prepare to explore the iconic sights and neighborhoods of Phoenix, check out the essential details for flights from Boise Airport to Sky Harbor International Airport.

  • Fastest flight duration: around 2h 15m non-stop
  • Route distance: roughly 700 miles (1,130 km)
  • Flights per week: around 40+ flights with multiple daily departures on average
  • Typical fares (one-way): economy tickets often range from $70–$310, depending on seasonality and how far ahead you book

Flights from Boise Airport (BOI) to Sky Harbor International Airport (PHX)

According to the latest traveler bookings, the top airlines flying from Boise to Phoenix are favored for both non-stop and one-stop flights. Popular layover options include Salt Lake City International Airport (SLC, approximately 1 hour 15 minutes), Seattle-Tacoma International Airport (SEA, around 1 hour 15 minutes), and Denver International Airport (DEN, about 1 hour 30 minutes). These choices provide the flexibility to balance price, total travel time, and cabin class, helping you find the ideal itinerary for your trip.

  • American Airlines: This major carrier provides non-stop flights, covering about 36% of departures on this route. One-way ticket prices generally fall between $80 and $330, with an average travel time of 2 hours and 15 minutes.
  • Southwest Airlines: Known for its budget-friendly options, Southwest offers both non-stop and one-stop services. It represents around 27% of departures, with one-way fares typically ranging from $70 to $305 and a non-stop flight duration of 2 hours and 15 minutes.
  • Alaska Airlines: This full-service airline provides both non-stop and one-stop options, accounting for approximately 25% of departures. One-way fares usually range from $75 to $325, with a non-stop journey time of 2 hours and 15 minutes.
  • Delta: Offering one-stop flights, Delta captures about 7% of departures on this route. One-way fares typically range from $80 to $290, with an in-flight duration of 3 hours and 45 minutes, bringing the total travel time to around 5 hours and 15 minutes, including layover.
  • United: This full-service airline provides one-stop service, making up roughly 4% of departures. Fares typically range from $100 to $305, with an in-flight time of 3 hours and 45 minutes and an overall journey time of about 5 hours and 15 minutes, factoring in layover time.

Travelers flying from Boise to Phoenix have the option to upgrade their flight. Leading airlines include Alaska Airlines, offering first class and business class; American Airlines, featuring first class; and Delta, which provides first class and premium economy class services.

Best time to fly from Boise (BOI) to Phoenix (PHX)

The most popular months for travelers flying from Boise to Phoenix are February, March, and April, when peak temperatures in Phoenix reach up to 74.5°F in April. If you prefer quieter travel, consider August, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 94.8°F. For better deals, September usually offers the lowest average one-way fare around $142. Flight availability peaks in November, with approximately 49 flights per week, making it easier to find convenient departure times. January has the fewest flights, with approximately 34 flights per week.

  • Cheapest time to fly: September usually offers good deals with average one-way fare around $142, roughly 12% cheaper than the yearly average.
  • More budget-friendly months to fly: August and May typically offer average one-way fares of around $146.
  • Most flight options: November has the highest number of flights from Boise to Phoenix, with approximately 49 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January55.4°F (13.0°C)Average34$161
February58.6°F (14.8°C)High41$167
March66.0°F (18.9°C)High47$207
April74.5°F (23.6°C)High44$164
May82.0°F (27.8°C)Average41$147
June92.3°F (33.5°C)Low39$157
July95.7°F (35.4°C)Low37$158
August94.8°F (34.9°C)Low36$144
September89.8°F (32.1°C)Average36$142
October77.7°F (25.4°C)Average41$159
November65.5°F (18.6°C)Average49$170
December55.4°F (13.0°C)Average40$171

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Boise (BOI) to Phoenix (PHX)

  • Boise to Scottsdale (BOI-SCF): Scottsdale Airport (SCF) lies approximately 14 miles from Sky Harbor International Airport (PHX).
  • Boise to Mesa (BOI-AZA): Phoenix - Mesa Gateway Airport (AZA) is located about 22 miles from Sky Harbor International Airport (PHX).
  • Ontario to Phoenix (ONO-PHX): Ontario Municipal Airport (ONO) is around 55 miles distant from Boise Airport (BOI).

How to find the best prices for flights from Boise (BOI) to Phoenix (PHX)

Getting some of the best deals on flights from Boise to Phoenix is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually available when booking 2-8 weeks in advance, which aligns with when most travelers plan their trips. Departures in the afternoon (12 PM-6 PM) often offer lower prices and are the most popular flight times. Additionally, flying on Friday typically yields cheaper rates, although Thursday remains the most popular travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Sky Harbor International Airport from Boise Airport

Phoenix welcomes travelers from Boise with a range of transport options based on price, convenience, and proximity. Here's how to reach Phoenix efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Phoenix, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Sky Harbor International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Sky Harbor International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Sky Harbor International Airport, travelers will find two key transport links within walking distance: Terminal 3 Station, a metro station, is located about 0.1 miles away, while the Phoenix Airport Bus Stop, a bus station, is situated about 0.2 miles from the airport.

Frequently asked questions

How much does a flight from Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.) cost?
You can find cheap one-way flights from $119 and cheap return flights from $173 Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.) with Expedia. One-way flights usually range from $126 to $830, and return flights typically cost between $235 and $902. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
September is the cheapest month to fly from Boise, ID (BOI) to Phoenix, AZ (PHX), with average return fares around $238. This price is about 15% lower than the average throughout the year, as September typically sees a decrease in travel demand after the summer peak. Other affordable months to fly include January and August.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Choose from 2 airlines operating direct flights from BOI to PHX:

  • American Airlines operates around 31 direct flights from BOI to PHX every week
  • Hawaiian Airlines operates around 21 direct flights from BOI to PHX every week

How do I find cheap flights from Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
To find a cheap flight from Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.), 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 Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The best airline to fly with from Boise, ID (BOI) to Phoenix, AZ (PHX) will differ from traveler to traveler. 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 Boise to Phoenix, which is great 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 Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
When flying from Boise (BOI) to Phoenix (PHX), September and August are the best months to consider, with average return flight prices around $238. These months are not only budget-friendly but also provide a good travel experience. For popular travel times, October and November are favored, but expect higher prices during these months.*Prices based on flights available on Expedia in the last year.
How many flights per day from Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
You can find approximately 7 nonstop flights per day from (BOI) to Sky Harbor Intl. (PHX). For more options, look at flights that include layovers.
What is the earliest flight from Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from BOI to PHX. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The most popular departure times for flights from Boise (BOI) to Phoenix (PHX) are in the early afternoon, from 12pm to 3pm. About 28% of passengers prefer this time window. Many major carriers, including United Airlines, American Airlines, and Southwest Airlines, offer flights during this window. This timing works well because it allows travelers to enjoy their morning in Boise before heading to Phoenix.
How long does it take to fly from Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Flying nonstop from BOI to PHX takes around 2 hours 20 minutes, with the route covering approximately 736 miles. Flights with a layover typically take 4 hours 40 minutes longer than direct options. 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 Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Select the "Business class" and "First class" filters when looking for BOI to PHX flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How much is a business class flight from Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
A direct, return business class ticket from Boise, ID (BOI) to Phoenix, AZ (PHX) typically costs between $742 - $1,214. A non-stop, one-way business class flight is usually around $205 - $446 per adult. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight with Expedia?
It's easy to earn miles on a Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.) 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.
What airports do you fly into for Phoenix from BOI (BOI)?
If you're planning to travel to Phoenix from BOI (BOI), you can fly into Sky Harbor Intl. (PHX) Some flights may connect through major hubs like Denver Intl. (DEN), San Francisco Intl. (SFO), Sacramento Intl. (SMF) before reaching Phoenix. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.) at the last minute?
Typically, booking a last minute flight from Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.) 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 Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight and hotel package?
Securing a Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.) Phoenix Vacation Packages 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 Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
If you booked your Boise, ID (BOI) to Phoenix, AZ (PHX-Sky Harbor Intl.) 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
Boise
Destination airport
Sky Harbor Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$172
Distance
735 mi
Average flight time
1 hour 30 mins

Book with confidence

Boise to Phoenix Flights

The cheapest times to fly from Boise to Phoenix

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boise to Phoenix are during the month of September. You can find some of the cheapest flights from Boise to Phoenix with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boise to Phoenix

Sunday is one of the best days to book for cheap flights from Boise to Phoenix: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boise to Phoenix

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boise to Phoenix in 2026. You can also book with separate airlines for your outbound and return journeys, from $119 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boise to Phoenix flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boise to Phoenix airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boise to Phoenix Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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