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$47+ Cheap flights from Sky Harbor Intl (PHX) to Boise (BOI)

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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Boise Air Term. Gowen Fld are usually found in September or July, booked 88 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Cheap flight deals from Sky Harbor Intl to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Boise (BOI). 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 September 11, 2025.

Round-trip from

$144
(Southwest)

One-way from

$47
(Southwest)

Popular in

December

Cheapest in

September

Average price

$191

Good round-trip deal

$167 or less

Good one-way deal

$78 or less
From Phoenix Sky Harbor Intl to Boise Air Term. Gowen Fld
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One-way flight from Phoenix Sky Harbor Intl to Boise Air Term. Gowen Fld
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Highest demand for flights based on searches. 8% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Phoenix Sky Harbor Intl to Boise Air Term. Gowen Fld.
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Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Boise Air Term. Gowen Fld.
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Find flight deals from Sky Harbor Intl to Boise

Cheapest flights from Sky Harbor Intl to Boise
Explore the most affordable flight options available from Sky Harbor Intl to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Southwest deal was found by Cheapflights users on 9/11. 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.
Fri 10/244:35 pmPHX - BOI
Nonstop2h 05mSouthwest
Mon 10/275:25 pmBOI - PHX
Nonstop2h 05mSouthwest
Deal found 9/11$144
This Southwest deal was found by Cheapflights users on 9/9. 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.
Sat 12/67:15 amPHX - BOI
1 stop6h 20mSouthwest
Wed 12/102:30 pmBOI - PHX
2 stops6h 00mSouthwest
Deal found 9/9$145
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Tue 9/307:59 pmPHX - BOI
Nonstop2h 08mHawaiian Airlines
Mon 10/66:16 pmBOI - PHX
Nonstop2h 15mHawaiian Airlines
Deal found 9/8$146
This Southwest deal was found by Cheapflights users on 9/9. 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.
Mon 10/276:10 amPHX - BOI
1 stop6h 25mSouthwest
Wed 10/293:15 pmBOI - PHX
1 stop6h 45mSouthwest
Deal found 9/9$147
This Southwest deal was found by Cheapflights users on 9/9. 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 10/167:45 amPHX - BOI
Nonstop2h 10mSouthwest
Mon 10/201:05 pmBOI - PHX
Nonstop2h 05mSouthwest
Deal found 9/9$151
This Southwest deal was found by Cheapflights users on 9/10. 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.
Wed 10/12:20 pmPHX - BOI
Nonstop2h 00mSouthwest
Mon 10/65:25 pmBOI - PHX
Nonstop2h 05mSouthwest
Deal found 9/10$156
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:59 pmPHX - BOI
Nonstop2h 08mAlaska Airlines
Sat 10/412:22 pmBOI - PHX
Nonstop2h 15mAlaska Airlines
Deal found 9/8$157
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/19:55 amPHX - BOI
1 stop5h 46mDelta
Mon 10/65:55 pmBOI - PHX
1 stop6h 43mDelta
Deal found 9/10$158
This Southwest deal was found by Cheapflights users on 9/9. 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.
Fri 10/1712:15 pmPHX - BOI
Nonstop2h 05mSouthwest
Sat 10/1811:40 amBOI - PHX
1 stop6h 45mSouthwest
Deal found 9/9$160
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Tue 9/308:04 amPHX - BOI
1 stop5h 56mHawaiian Airlines
Sat 10/412:22 pmBOI - PHX
Nonstop2h 15mHawaiian Airlines
Deal found 9/8$161
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/314:20 pmPHX - BOI
Nonstop2h 17mAmerican Airlines
Sun 11/25:37 amBOI - PHX
Nonstop2h 28mAmerican Airlines
Deal found 9/9$162

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl to Boise 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 September 11, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Boise that are best for you.

Fly from

Sky Harbor Intl

Fly to

Boise

Route

Depart

Return

Price

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Fri 10/24

8:25 am-4:50 pm

1 stop7h 25m

Boise Air Term. Gowen Fld

Mon 10/27

5:25 pm-6:30 pm

Nonstop2h 05m

$154

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Wed 10/1

7:59 pm-11:07 pm

Nonstop2h 08m

Boise Air Term. Gowen Fld

Sat 10/4

12:22 pm-1:37 pm

Nonstop2h 15m

$157

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Fri 10/17

3:40 pm-10:06 pm

1 stop5h 26m

Boise Air Term. Gowen Fld

Tue 10/21

5:25 am-10:06 am

1 stop5h 41m

$157

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Wed 10/1

9:00 am-12:10 pm

Nonstop2h 10m

Boise Air Term. Gowen Fld

Mon 10/6

8:15 pm-11:20 pm

1 stop4h 05m

$158

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Wed 10/1

9:55 am-4:41 pm

1 stop5h 46m

Boise Air Term. Gowen Fld

Mon 10/6

5:55 pm-11:38 pm

1 stop6h 43m

$158

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Fri 1/23

4:45 pm-10:05 pm

1 stop5h 20m

Boise Air Term. Gowen Fld

Wed 1/28

7:30 am-3:42 pm

1 stop8h 12m

$161

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Thu 10/16

4:35 pm-7:40 pm

Nonstop2h 05m

Boise Air Term. Gowen Fld

Mon 10/20

8:15 pm-11:20 pm

1 stop4h 05m

$163

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Sat 11/1

7:00 am-3:12 pm

1 stop7h 12m

Boise Air Term. Gowen Fld

Tue 11/4

7:35 am-9:49 am

Nonstop2h 14m

$167

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Fri 10/31

9:31 am-12:54 pm

Nonstop2h 23m

Boise Air Term. Gowen Fld

Sun 11/2

7:35 am-9:49 am

Nonstop2h 14m

$168

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Sat 11/1

11:00 am-8:16 pm

1 stop8h 16m

Boise Air Term. Gowen Fld

Tue 11/4

9:00 am-3:27 pm

1 stop6h 27m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 21 results
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Best time to book a flight from Sky Harbor Intl to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Sky Harbor Intl 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 Phoenix Sky Harbor Intl Airport to Boise

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

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Boise. Price data was last updated on August 29, 2025.

The price you pay for your flight from Phoenix Sky Harbor Intl Airport to Boise may vary depending on when you book. For the best chance of a lower fare, look to book 88 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 Phoenix Sky Harbor Intl Airport to Boise?

Currently, October is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Boise (average of $314). Flying from Phoenix Sky Harbor Intl Airport to Boise in June is currently the most expensive (average of $398). 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 PHX to BOI?

Find hourly flight availability from Sky Harbor Intl to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

One of the essential ways to save on airfare from Phoenix Sky Harbor Intl Airport to Boise is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 17% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to Boise. Price data was last updated on September 7, 2025.

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

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated September 11, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Phoenix Sky Harbor Intl Airport to Boise have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,248 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Boise. 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 into for flights to Boise from Phoenix Sky Harbor Intl?

    If you book a flight to Boise from Phoenix Sky Harbor Intl, you will be flying to Air Term. Gowen Fld, which is the city’s only airport. Boise Air Term. Gowen Fld (BOI) is located 3.3 mi from the center of Boise. There are 5 flights from Phoenix Sky Harbor Intl to Air Term. Gowen Fld per day from 6 different airlines.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Boise?

    There are many flights that can get you from Phoenix Sky Harbor Intl Airport to Boise in 2h 08m. Fly via Southwest, Alaska Airlines, or Delta to get the fastest option. The distance between Phoenix Sky Harbor Intl Airport and Boise is about 736 mi. This flight may include one or multiple stops.

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

    Allegiant Air, at $63, was found to be the cheapest airline from Phoenix Sky Harbor Intl Airport to Boise.Alternate airlines to your destination round-trip include Delta and Hawaiian Airlines. Allegiant Air is currently priced 75% below the average price you’ll pay for this route.

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

    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 Phoenix Sky Harbor Intl Airport to Boise on time: Southwest (87%), Alaska Airlines (86%), Horizon Air (86%).

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

    Looking at all options, your cheapest flight can be booked for $46. While the most popular route (Phoenix Sky Harbor Intl - Boise Air Term. Gowen Fld) can be booked for $94 on average, our data indicates $190 when flying from Phoenix Sky Harbor Intl Airport to Boise.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to Boise 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 Phoenix Sky Harbor Intl Airport to Boise?

    Currently, October is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Boise (average of $314). Flying from Phoenix Sky Harbor Intl Airport to Boise in June is currently the most expensive (average of $398). 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 Boise?

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Ontario
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Nampa
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Top 6 airlines flying from Sky Harbor Intl to Boise

Discover the top 6 airlines that operate flights from Sky Harbor Intl to Boise. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$63Average$145FlexibilityNo cancel feeOn-time88%
DeltaCheapest$88Average$209FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$136Average$209FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$152Average$252FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$157Average$242FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$158Average$282FlexibilityNo cancel feeOn-time71%

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