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$55+ 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 12/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PHX
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Phoenix are usually found in September or August, booked 54 days in advance, depart on a Thursday or Wednesday 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 October 30, 2025.

Round-trip from

$165
(Hawaiian Airlines)

One-way from

$55
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$290
From Boise Air Term. Gowen Fld to Phoenix
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One-way flight from Boise Air Term. Gowen Fld to Phoenix
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Highest demand for flights based on searches. 17% potential increase in price ($61 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:59 pmBOI - PHX
1 stop6h 06mAlaska Airlines
Mon 12/88:59 pmPHX - BOI
Nonstop2h 16mAlaska Airlines
Deal found 10/28$165
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Sun 12/712:44 pmBOI - PHX
1 stop22h 21mMultiple Airlines
Fri 12/129:58 amPHX - BOI
1 stop5h 46mMultiple Airlines
Deal found 10/27$166
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Mon 12/86:03 amBOI - PHX
1 stop7h 39mAlaska Airlines
Thu 12/1110:48 amPHX - BOI
Nonstop2h 24mAlaska Airlines
Deal found 10/28$167
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 11/1811:43 amBOI - PHX
1 stop8h 07mAlaska Airlines
Fri 11/219:44 pmPHX - BOI
Nonstop2h 15mAlaska Airlines
Deal found 10/29$170
This Delta deal was found by Cheapflights users on 10/28. 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.
Thu 12/111:54 pmBOI - PHX
1 stop5h 11mDelta
Mon 12/152:40 pmPHX - BOI
1 stop7h 36mDelta
Deal found 10/28$177
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Thu 11/2711:15 amBOI - PHX
Nonstop2h 07mAmerican Airlines
Thu 12/49:20 pmPHX - BOI
Nonstop2h 19mAmerican Airlines
Deal found 10/30$182
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/1212:44 pmBOI - PHX
1 stop8h 37mFrontier
Wed 12/3110:26 pmPHX - BOI
2 stops13h 17mFrontier
Deal found 10/28$185
This Southwest deal was found by Cheapflights users on 10/27. 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.
Sun 12/74:00 pmBOI - PHX
2 stops6h 35mSouthwest
Fri 12/1211:15 amPHX - BOI
2 stops5h 45mSouthwest
Deal found 10/27$187
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/127:35 amBOI - PHX
Nonstop2h 31mAlaska Airlines
Sun 12/289:38 pmPHX - BOI
Nonstop2h 21mAlaska Airlines
Deal found 10/28$190
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 12/97:35 amBOI - PHX
Nonstop2h 31mAlaska Airlines
Sun 12/289:38 pmPHX - BOI
Nonstop2h 21mAlaska Airlines
Deal found 10/28$192

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 October 30, 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

Thu 12/11

7:35 am-10:06 am

Nonstop2h 31m

Phoenix Sky Harbor Intl

Thu 12/25

7:00 am-3:22 pm

1 stop8h 22m

$167

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Mon 12/8

3:45 pm-5:45 pm

Nonstop2h 00m

Phoenix Sky Harbor Intl

Sun 12/14

5:10 am-10:05 am

1 stop4h 55m

$167

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Mon 12/8

6:03 am-1:42 pm

1 stop7h 39m

Phoenix Sky Harbor Intl

Thu 12/11

10:48 am-1:12 pm

Nonstop2h 24m

$167

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Wed 11/19

4:57 pm-11:51 pm

1 stop6h 54m

Phoenix Sky Harbor Intl

Sat 11/22

9:44 pm-11:59 pm

Nonstop2h 15m

$167

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sun 12/7

6:03 am-12:23 pm

1 stop6h 20m

Phoenix Sky Harbor Intl

Fri 12/12

8:59 pm-11:15 pm

Nonstop2h 16m

$167

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Mon 12/15

5:30 pm-10:10 pm

1 stop4h 40m

Phoenix Sky Harbor Intl

Sun 12/21

8:20 pm-1:25 am

1 stop5h 05m

$176

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Fri 12/12

5:58 pm-12:46 am

1 stop6h 48m

Phoenix Sky Harbor Intl

Thu 12/25

6:19 am-2:49 pm

1 stop8h 30m

$177

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sun 12/7

4:00 pm-10:35 pm

2 stops6h 35m

Phoenix Sky Harbor Intl

Fri 12/12

1:30 pm-6:35 pm

1 stop5h 05m

$182

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Thu 1/22

12:54 pm-12:33 am

1 stop11h 39m

$72

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 1/6

6:45 pm-8:56 pm

Nonstop2h 11m

$77

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 18 results
1
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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 October 24, 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, August is the cheapest month in which you can book a flight from Boise to Phoenix (average of $82). Flying from Boise to Phoenix in September is currently the most expensive (average of $137). 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 October 30, 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 in the evening, which can drop the price by up to 61% 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 Sunday afternoons 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.

How much does it cost to fly round-trip from Boise to Phoenix?

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 October 30, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Hawaiian 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
11,214 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,214 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Hawaiian Airlines
7.8
Good
2,797 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,998 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,030 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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 3 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 $167, Alaska Airlines can have you in Phoenix from Boise in 2h 31m. 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 $98 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 cheapest airlines to fly from Boise to Phoenix one-way?

    The cheapest airlines for a one-way flight from Boise to Phoenix are Frontier ($72), Alaska Airlines ($77), and American Airlines ($77).

  • 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: Horizon Air (93%), American Airlines (87%), SkyWest Airlines( 83%).

  • What are the cheapest flights from Boise to Phoenix?

    Looking for the cheapest flight from Boise to Phoenix? While on average our users pay $351, our data indicates the cheapest price to be $76. The most popular route (Boise Air Term. Gowen Fld - Phoenix Sky Harbor Intl), is priced around $152.

  • 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, August is the cheapest month in which you can book a flight from Boise to Phoenix (average of $82). Flying from Boise to Phoenix in September is currently the most expensive (average of $137). 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.

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$82Average$155FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$98Average$244FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$102Average$170FlexibilityNo cancel feeOn-time65%
DeltaCheapest$108Average$237FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$148Average$312FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$158Average$283FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$173Average$325FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$591FlexibilityNo cancel feeOn-time69%

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