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Sky Harbor Intl

$69+ Cheap flights from Boise (BOI) to Sky Harbor Intl (PHX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PHX
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Phoenix Sky Harbor Intl are usually found in September or August, booked 54 days in advance, depart on a Thursday or Friday and return on a Thursday

Cheap flight deals from Boise to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Sky Harbor Intl (PHX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 16, 2025.

Round-trip from

$137
(Southwest)

One-way from

$69
(Alaska Airlines)

Popular in

December

Cheapest in

September

Average price

$217

Good round-trip deal

$234 or less

Good one-way deal

$109 or less
From Boise Air Term. Gowen Fld to Phoenix Sky Harbor Intl
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One-way flight from Boise Air Term. Gowen Fld to Phoenix Sky Harbor Intl
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Highest demand for flights based on searches. 22% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Boise Air Term. Gowen Fld to Phoenix Sky Harbor Intl.
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Price to beat on a one-way flight from Boise Air Term. Gowen Fld to Phoenix Sky Harbor Intl.
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Find flight deals from Boise to Sky Harbor Intl

Cheapest flights from Boise to Sky Harbor Intl
Explore the most affordable flight options available from Boise to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:57 pmBOI - PHX
Nonstop2h 09mAmerican Airlines
Wed 9/1710:08 amPHX - BOI
Nonstop2h 09mAmerican Airlines
Deal found 8/14$137
This Netflights deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:05 pmBOI - PHX
Nonstop2h 12mAlaska Airlines
Tue 9/97:59 pmPHX - BOI
Nonstop2h 08mAlaska Airlines
Deal found 8/14$145
This Southwest deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:15 amBOI - PHX
Nonstop2h 05mSouthwest
Sun 9/148:30 amPHX - BOI
Nonstop2h 05mSouthwest
Deal found 8/15$147
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:05 pmBOI - PHX
Nonstop2h 12mHawaiian Airlines
Mon 9/87:59 pmPHX - BOI
Nonstop2h 08mHawaiian Airlines
Deal found 8/13$150
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2512:05 pmBOI - PHX
1 stop4h 30mSouthwest
Mon 9/293:15 pmPHX - BOI
Nonstop2h 00mSouthwest
Deal found 8/14$152
This Trip.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:05 pmBOI - PHX
Nonstop2h 12mMultiple Airlines
Fri 9/197:59 pmPHX - BOI
Nonstop2h 08mMultiple Airlines
Deal found 8/15$153
This Netflights deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:05 pmBOI - PHX
Nonstop2h 12mAlaska Airlines
Mon 9/87:59 pmPHX - BOI
Nonstop2h 08mAlaska Airlines
Deal found 8/14$155
This Hawaiian Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:05 pmBOI - PHX
Nonstop2h 12mHawaiian Airlines
Wed 9/171:54 pmPHX - BOI
1 stop7h 56mHawaiian Airlines
Deal found 8/14$156
This Trip.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:17 pmBOI - PHX
1 stop5h 38mHawaiian Airlines
Fri 9/197:59 pmPHX - BOI
Nonstop2h 08mHawaiian Airlines
Deal found 8/15$159
This FlightHub deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:53 pmBOI - PHX
1 stop5h 27mFrontier
Sun 11/96:00 amPHX - BOI
1 stop5h 48mFrontier
Deal found 8/14$160

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Sky Harbor Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 16, 2025.
Use the filters below to find and compare flights from Boise to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Boise

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Fri 10/24

5:25 pm-6:30 pm

Nonstop2h 05m

Phoenix Sky Harbor Intl

Mon 10/27

4:35 pm-7:40 pm

Nonstop2h 05m

$137

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Thu 9/25

5:22 pm-6:39 pm

Nonstop2h 17m

Phoenix Sky Harbor Intl

Mon 9/29

1:35 pm-4:52 pm

Nonstop2h 17m

$137

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Wed 9/17

6:05 pm-7:17 pm

Nonstop2h 12m

Phoenix Sky Harbor Intl

Thu 9/18

7:59 pm-11:07 pm

Nonstop2h 08m

$137

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Wed 9/10

1:57 pm-3:06 pm

Nonstop2h 09m

Phoenix Sky Harbor Intl

Wed 9/17

10:08 am-1:17 pm

Nonstop2h 09m

$137

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Thu 10/30

5:30 am-6:30 am

Nonstop2h 00m

Phoenix Sky Harbor Intl

Mon 11/3

2:40 pm-4:50 pm

Nonstop2h 10m

$137

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Wed 9/24

1:57 pm-3:06 pm

Nonstop2h 09m

Phoenix Sky Harbor Intl

Mon 9/29

1:35 pm-4:52 pm

Nonstop2h 17m

$137

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Thu 9/4

6:05 pm-7:17 pm

Nonstop2h 12m

Phoenix Sky Harbor Intl

Tue 9/9

7:59 pm-11:07 pm

Nonstop2h 08m

$145

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Mon 9/8

6:05 pm-7:17 pm

Nonstop2h 12m

Phoenix Sky Harbor Intl

Wed 9/10

7:59 pm-11:07 pm

Nonstop2h 08m

$147

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Wed 9/10

6:05 pm-7:17 pm

Nonstop2h 12m

Phoenix Sky Harbor Intl

Fri 9/12

7:59 pm-11:07 pm

Nonstop2h 08m

$147

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sat 9/13

2:00 pm-3:10 pm

Nonstop2h 10m

Phoenix Sky Harbor Intl

Sun 9/14

8:30 am-11:35 am

Nonstop2h 05m

$147

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 20 results
1
2

Best time to book a flight from Boise to Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl from Boise with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boise to Phoenix Sky Harbor Intl Airport

How far ahead should I book a flight from Boise to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Boise to Sky Harbor Intl. Price data was last updated on August 8, 2025.

The price you pay for your flight from Boise to Phoenix Sky Harbor Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 54 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boise to Phoenix Sky Harbor Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Boise to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Boise to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOI to PHX?

Find hourly flight availability from Boise to Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 16, 2025.

When flying from Boise to Phoenix Sky Harbor Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 13% versus a flight in the morning.

What is the cheapest day to fly from Boise to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Boise to Sky Harbor Intl. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their Boise to Phoenix Sky Harbor Intl Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Boise to Phoenix Sky Harbor Intl Airport

Explore weekly flight availability from Boise to Sky Harbor Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 16, 2025.

The most flights from BOI to PHX are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sky Harbor Intl. Reviews last updated August 16, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Boise to Phoenix Sky Harbor Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,985 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
8,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from Boise to Sky Harbor Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boise to Phoenix Sky Harbor Intl?

    Most people fly from Boise Air Term. Gowen Fld (BOI) if they book a flight from Boise to Phoenix Sky Harbor Intl. On average, Air Term. Gowen Fld has 6 outbound flights to Phoenix Sky Harbor Intl per day from 8 airlines. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

  • What are the cheapest airlines flying from Boise to Phoenix Sky Harbor Intl Airport round-trip?

    Hawaiian Airlines, at $98, was found to be the cheapest airline from Boise to Phoenix Sky Harbor Intl Airport.Alternate airlines to your destination round-trip include Spirit Airlines and Allegiant Air. Hawaiian Airlines is 65% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Boise to Phoenix Sky Harbor Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boise to Phoenix Sky Harbor Intl Airport on time: SkyWest Airlines (88%), Alaska Airlines (88%), Horizon Air (88%).

  • What are the cheapest flights from Boise to Phoenix Sky Harbor Intl Airport?

    The cheapest flight price from Boise to Phoenix Sky Harbor Intl Airport is $68. On average you can expect to pay $296. The most popular route, (Boise Air Term. Gowen Fld - Phoenix Sky Harbor Intl), can usually be booked for $137.

  • Can I find deals for flights from Boise to Sky Harbor Intl that include hotel bookings?

    Yes. In addition to deals on Boise to Sky Harbor Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boise to Sky Harbor Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to Sky Harbor Intl.

  • Can I find deals for business class flights from Boise to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from Boise to Sky Harbor Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boise to Phoenix Sky Harbor Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Boise to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Boise to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Phoenix Sky Harbor Intl Airport?

Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locations
Payson
Chandler
Glendale
Globe
Goodyear
Surprise
Casa Grande
Buckeye
Camp Verde
Peoria
Paradise Valley
Avondale
Guadalupe

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Top 8 airlines flying from Boise to Sky Harbor Intl

Discover the top 8 airlines that operate flights from Boise to Sky Harbor Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$98Average$227FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$102Average$170FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$106Average$189FlexibilityNo cancel feeOn-time88%
DeltaCheapest$149Average$239FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$158Average$300FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$159Average$284FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$174Average$328FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$596FlexibilityNo cancel feeOn-time69%

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