HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Phoenix

$63+ Cheap flights from Boise (BOI) to Phoenix

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PHX
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boise to Phoenix with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Phoenix are usually found in August or September, booked 54 days in advance, depart on a Thursday or Friday and return on a Thursday

Cheap flight deals from Boise to Phoenix

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Phoenix (PH1). 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 septiembre 15, 2025.

Round-trip from

$153
(Trip.com)

One-way from

$63
(Southwest)

Popular in

December

Cheapest in

August

Average price

$217
From Boise Air Term. Gowen Fld to Phoenix
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Phoenix
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Boise to Phoenix

Cheapest flights from Boise to Phoenix
Explore the most affordable flight options available from Boise to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
dom. 9/2112:22 pmBOI - PHX
1 stop20h 38mFrontier
mié. 9/248:00 amPHX - BOI
1 stop26h 37mFrontier
Deal found 9/13$152
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/297:35 amBOI - PHX
Nonstop2h 14mHawaiian Airlines
mié. 11/510:31 amPHX - BOI
Nonstop2h 21mHawaiian Airlines
Deal found 9/14$153
This Trip.com deal was found by Cheapflights users on 9/15. 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.
mié. 10/2212:22 pmBOI - PHX
Nonstop2h 15mHawaiian Airlines
mié. 10/299:31 amPHX - BOI
Nonstop2h 23mHawaiian Airlines
Deal found 9/15$154
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/206:16 pmBOI - PHX
Nonstop2h 15mAlaska Airlines
jue. 10/309:31 amPHX - BOI
Nonstop2h 23mAlaska Airlines
Deal found 9/15$157
This American Airlines deal was found by Cheapflights users on 9/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/74:40 pmBOI - PHX
Nonstop2h 14mAmerican Airlines
sáb. 10/1110:20 amPHX - BOI
Nonstop2h 24mAmerican Airlines
Deal found 9/13$163
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/206:16 pmBOI - PHX
Nonstop2h 15mAlaska Airlines
mar. 10/216:02 pmPHX - BOI
1 stop4h 55mAlaska Airlines
Deal found 9/15$167
This Southwest deal was found by Cheapflights users on 9/12. 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.
lun. 10/68:15 pmBOI - PHX
1 stop4h 05mSouthwest
mié. 10/85:15 amPHX - BOI
1 stop4h 30mSouthwest
Deal found 9/12$168
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/127:35 amBOI - PHX
Nonstop2h 14mAlaska Airlines
vie. 11/1410:31 amPHX - BOI
Nonstop2h 21mAlaska Airlines
Deal found 9/13$170
This Southwest deal was found by Cheapflights users on 9/14. 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.
mar. 10/142:35 pmBOI - PHX
1 stop8h 30mSouthwest
mar. 10/213:40 pmPHX - BOI
Nonstop2h 05mSouthwest
Deal found 9/14$172
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/216:30 amBOI - PHX
1 stop5h 39mAlaska Airlines
sáb. 11/17:00 amPHX - BOI
1 stop7h 12mAlaska Airlines
Deal found 9/15$176
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/195:25 amBOI - PHX
1 stop5h 41mDelta
mar. 10/2811:01 amPHX - BOI
1 stop8h 15mDelta
Deal found 9/15$177

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Phoenix 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 septiembre 15, 2025.
Use the filters below to find and compare flights from Boise to Phoenix that are best for you.

Fly from

Boise

Fly to

Phoenix

Route

Depart

Return

Price

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

mié. 11/5

6:09 pm-8:15 pm

Nonstop2h 06m

Phoenix Sky Harbor Intl

sáb. 11/8

10:31 am-12:52 pm

Nonstop2h 21m

$157

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

lun. 10/20

6:16 pm-7:31 pm

Nonstop2h 15m

Phoenix Sky Harbor Intl

mar. 10/28

7:00 am-4:17 pm

1 stop8h 17m

$167

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

mar. 10/21

5:38 pm-11:40 pm

1 stop7h 02m

Phoenix Sky Harbor Intl

lun. 10/27

7:57 pm-11:09 pm

Nonstop2h 12m

$167

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

mié. 10/29

6:09 pm-7:15 pm

Nonstop2h 06m

Phoenix Sky Harbor Intl

sáb. 11/1

7:00 am-3:12 pm

1 stop7h 12m

$167

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

mar. 3/3

8:45 am-11:00 am

Nonstop2h 15m

Phoenix Sky Harbor Intl

mié. 3/4

7:00 pm-11:50 pm

1 stop4h 50m

$167

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

lun. 10/6

8:15 pm-11:20 pm

1 stop4h 05m

Phoenix Sky Harbor Intl

mié. 10/8

5:15 am-10:45 am

1 stop4h 30m

$168

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

mié. 11/12

7:35 am-9:49 am

Nonstop2h 14m

Phoenix Sky Harbor Intl

vie. 11/14

10:31 am-12:52 pm

Nonstop2h 21m

$170

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

jue. 1/1

8:05 am-10:20 am

Nonstop2h 15m

Phoenix Sky Harbor Intl

mar. 1/6

8:25 am-2:20 pm

2 stops5h 55m

$172

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

sáb. 1/10

11:50 am-5:50 pm

1 stop6h 00m

Phoenix Sky Harbor Intl

sáb. 1/17

6:30 am-1:00 pm

1 stop6h 30m

$176

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

jue. 10/30

4:00 pm-9:52 pm

1 stop6h 52m

Phoenix Sky Harbor Intl

dom. 11/2

5:00 am-9:17 am

1 stop4h 17m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from Boise to Phoenix

Have a flexible travel schedule? Discover the best time to fly to Phoenix 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

How far ahead should I book a flight from Boise to Phoenix?

Use this chart to determine the optimal time to book a round-trip flight from Boise to Phoenix. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Boise to Phoenix, you should look to book at least 54 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Boise to Phoenix?

Currently, January is the cheapest month in which you can book a flight from Boise to Phoenix (average of $258). Flying from Boise to Phoenix 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 Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 15, 2025.

When flying from Boise to Phoenix, 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 15% versus a flight in the morning.

What is the cheapest day to fly from Boise to Phoenix?

Use this chart to determine the cheapest time to fly round-trip from Boise to Phoenix. Price data was last updated on August 3, 2025.

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

Weekly flight availability from Boise to Phoenix

Explore weekly flight availability from Boise to Phoenix. 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 septiembre 15, 2025.

The most flights from BOI to PH1 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 Phoenix

Get insights into the airlines that provide service to Phoenix. 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 Phoenix. Reviews last updated septiembre 15, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and United Airlines from Boise to Phoenix 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

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

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

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

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
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

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.
United Airlines
7.4
Good
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

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

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

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.
Allegiant Air
7.2
Good
699 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Comfort

7.8

Overall

8.0

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 Boise to Phoenix. 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?

    Most people fly from Boise Air Term. Gowen Fld (BOI) if they book a flight from Boise to Phoenix. On average, Air Term. Gowen Fld has 5 outbound flights to Phoenix per day from 8 airlines. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

  • How long is the flight from Boise to Phoenix?

    For as low as $157, Hawaiian Airlines can have you in Phoenix from Boise in 2h 06m. The distance between Boise and Phoenix is about 736 mi. Most flights are nonstop.

  • What are the cheapest airlines flying from Boise to Phoenix round-trip?

    Our cheapest airline available from Boise to Phoenix is Allegiant Air. Our recent data shows that you can find tickets from as low as $82 on this airline. Additional options worth looking into are Hawaiian Airlines and Spirit Airlines, starting at $91 and $102 round-trip. Allegiant Air is priced at 71% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Boise to Phoenix?

    Before booking your flight to Phoenix from Boise, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (88%), American Airlines (88%), Southwest( 86%).

  • What are the cheapest flights from Boise to Phoenix?

    Looking for the cheapest flight from Boise to Phoenix? While on average our users pay $318, our data indicates the cheapest price to be $78. The most popular route (Boise Air Term. Gowen Fld - Phoenix Sky Harbor Intl), is priced around $153.

  • Can I find deals for flights from Boise to Phoenix that include hotel bookings?

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

  • How can I find direct flights from Boise to Phoenix?

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

  • Can I find deals for business class flights from Boise to Phoenix?

    Yes. Cheapflights offers flight deals from Boise to Phoenix 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?

    Currently, January is the cheapest month in which you can book a flight from Boise to Phoenix (average of $258). Flying from Boise to Phoenix 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boise to Phoenix

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Las Vegas flights
Boise to Sky Harbor Intl flights
Spokane to Sky Harbor Intl flights
Spokane to Las Vegas flights
Idaho Falls to Sky Harbor Intl flights
Spokane to Tucson flights
Jackson to Sky Harbor Intl flights
Lewiston to Yuma flights
Boise to Tucson flights
Idaho Falls to Las Vegas flights
Hailey to Sky Harbor Intl flights
Jackson to Las Vegas flights
Jackson to Tucson flights
Pocatello to Sky Harbor Intl flights
Hailey to Las Vegas flights
Idaho Falls to Tucson flights
Lewiston to Las Vegas flights
Twin Falls to Las Vegas flights
Boise to Flagstaff flights
Spokane to Flagstaff flights
Boise to Yuma flights
Spokane to Yuma flights
Pocatello to Las Vegas flights
Twin Falls to Sky Harbor Intl flights

Top 8 airlines flying from Boise to Phoenix

Discover the top 8 airlines that operate flights from Boise to Phoenix. 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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$82Average$160FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$91Average$224FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$102Average$170FlexibilityNo cancel feeOn-time65%
DeltaCheapest$108Average$235FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$157Average$280FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$159Average$285FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$168Average$318FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$588FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.