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Sky Harbor Intl

$56+ Cheap flights from Idaho 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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PHX
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Idaho to Sky Harbor Intl

Keep the following information in mind while searching for Idaho to Sky Harbor Intl flight deals. Data was last updated September 17, 2025.

Round-trip from

$151
(Trip.com)

One-way from

$56
(Frontier)

Popular in

December

Cheapest in

August

Average price

$217

Good round-trip deal

$263 or less

Good one-way deal

$143 or less
From Idaho to Phoenix Sky Harbor Intl
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One-way flight from Idaho to Phoenix Sky Harbor Intl
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Highest demand for flights based on searches. 21% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($20 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 Idaho to Phoenix Sky Harbor Intl.
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Price to beat on a one-way flight from Idaho to Phoenix Sky Harbor Intl.
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Find flight deals from Idaho to Sky Harbor Intl

Cheapest flights from Idaho to Sky Harbor Intl
Explore the most affordable flight options available from Idaho to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

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.
Wed 10/2212:22 pmBOI - PHX
Nonstop2h 15mHawaiian Airlines
Wed 10/299:31 amPHX - BOI
Nonstop2h 23mHawaiian Airlines
Deal found 9/15$151
This KAYAK deal was found by Cheapflights users on 9/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2512:22 pmBOI - PHX
Nonstop2h 15mAlaska Airlines
Mon 10/273:15 pmPHX - BOI
1 stop7h 34mAlaska Airlines
Deal found 9/16$152
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.
Mon 10/206:16 pmBOI - PHX
Nonstop2h 15mAlaska Airlines
Tue 10/287:57 pmPHX - BOI
Nonstop2h 12mAlaska Airlines
Deal found 9/15$157
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 10/284:40 pmBOI - PHX
Nonstop2h 14mAmerican Airlines
Fri 10/314:20 pmPHX - BOI
Nonstop2h 17mAmerican Airlines
Deal found 9/16$160
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:30 amBOI - PHX
1 stop5h 39mHawaiian Airlines
Mon 10/279:31 amPHX - BOI
Nonstop2h 23mHawaiian Airlines
Deal found 9/15$161
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2112:22 pmBOI - PHX
Nonstop2h 15mHawaiian Airlines
Sat 11/17:00 amPHX - BOI
1 stop7h 12mHawaiian Airlines
Deal found 9/15$162
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/245:20 pmBOI - PHX
Nonstop2h 15mAmerican Airlines
Mon 10/278:20 pmPHX - BOI
Nonstop2h 12mAmerican Airlines
Deal found 9/15$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.
Mon 10/206:16 pmBOI - PHX
Nonstop2h 15mAlaska Airlines
Wed 10/297:00 amPHX - BOI
1 stop8h 17mAlaska Airlines
Deal found 9/15$167
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.
Mon 10/206:16 pmBOI - PHX
Nonstop2h 15mAlaska Airlines
Fri 10/319:31 amPHX - BOI
Nonstop2h 23mAlaska Airlines
Deal found 9/15$168
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/14:40 pmBOI - PHX
Nonstop2h 14mAmerican Airlines
Tue 11/411:12 amPHX - BOI
Nonstop2h 34mAmerican Airlines
Deal found 9/15$169
This Hawaiian 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/207:00 amGEG - PHX
1 stop8h 17mHawaiian Airlines
Thu 10/234:17 pmPHX - GEG
1 stop6h 24mHawaiian Airlines
Deal found 9/15$176
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:35 pmGEG - PHX
Nonstop2h 39mFrontier
Sun 12/141:52 pmPHX - GEG
Nonstop2h 48mFrontier
Deal found 9/15$178

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho 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 September 17, 2025.
Use the filters below to find and compare flights from Idaho to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Idaho

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 3/3

5:00 pm-7:15 pm

Nonstop2h 15m

Phoenix Sky Harbor Intl

Wed 3/4

11:45 am-1:49 pm

Nonstop2h 04m

$157

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 3/3

7:05 pm-11:16 pm

1 stop4h 11m

Phoenix Sky Harbor Intl

Wed 3/4

11:45 am-1:49 pm

Nonstop2h 04m

$167

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Mon 10/20

6:16 pm-7:31 pm

Nonstop2h 15m

Phoenix Sky Harbor Intl

Tue 10/28

7:00 am-4:17 pm

1 stop8h 17m

$167

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Mon 10/20

6:16 pm-7:31 pm

Nonstop2h 15m

Phoenix Sky Harbor Intl

Wed 10/29

3:15 pm-11:49 pm

1 stop7h 34m

$167

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Thu 10/30

7:00 am-3:00 pm

1 stop8h 00m

Phoenix Sky Harbor Intl

Mon 11/3

6:50 pm-11:56 pm

1 stop6h 06m

$176

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Wed 10/22

7:00 am-3:17 pm

1 stop8h 17m

Phoenix Sky Harbor Intl

Mon 10/27

9:31 am-6:54 pm

1 stop9h 23m

$176

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Wed 10/22

7:00 am-3:17 pm

1 stop8h 17m

Phoenix Sky Harbor Intl

Thu 10/23

4:17 pm-10:41 pm

1 stop6h 24m

$176

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Mon 10/13

5:55 pm-11:38 pm

1 stop6h 43m

Phoenix Sky Harbor Intl

Tue 10/14

7:04 pm-11:59 pm

1 stop3h 55m

$177

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Fri 10/24

4:46 pm-10:26 pm

1 stop6h 40m

Phoenix Sky Harbor Intl

Sat 11/1

7:05 am-4:22 pm

1 stop8h 17m

$177

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 10/14

4:40 pm-5:45 pm

Nonstop2h 05m

Phoenix Sky Harbor Intl

Tue 10/21

12:40 pm-3:50 pm

Nonstop2h 10m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results
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Best time to book a flight from Idaho to Sky Harbor Intl

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

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

Currently, January is the cheapest month in which you can book a flight from Idaho to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Idaho 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 ID to PHX?

Find hourly flight availability from Idaho 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 September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Phoenix Sky Harbor Intl Airport as you normally would.

Weekly flight availability from Idaho to Phoenix Sky Harbor Intl Airport

Explore weekly flight availability from Idaho 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 September 17, 2025.

The most flights from USID 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 (2 on average).

Related info for your journey

Find useful and relevant information for your journey from Idaho 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.

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

    Airlines like Alaska Airlines, Hawaiian Airlines, and Delta fly from Idaho to Phoenix Sky Harbor Intl Airport in about 2h 15m. The time it takes to get you to your destination can typically vary by up to 4h 28m. The distance between Idaho and Phoenix Sky Harbor Intl Airport is about 736 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Idaho to Phoenix Sky Harbor Intl Airport one-way?

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $79. Users have also found prices from $79 and $146 on Hawaiian Airlines and Delta, respectively.

  • What are the most popular routes from Idaho to Phoenix Sky Harbor Intl Airport?

    When deciding which route to take from Idaho to Phoenix Sky Harbor Intl Airport consider Boise Air Term. Gowen Fld - Phoenix Sky Harbor Intl, Spokane - Phoenix Sky Harbor Intl or Idaho Falls Fanning Field - Phoenix Sky Harbor Intl as they are the most popular.

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

    Before booking your flight to Phoenix Sky Harbor Intl Airport from Idaho, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (90%), American Airlines (89%), Alaska Airlines( 87%).

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

    Looking at all options, your cheapest flight can be booked for $78. While the most popular route (Boise Air Term. Gowen Fld - Phoenix Sky Harbor Intl) can be booked for $151 on average, our data indicates $323 when flying from Idaho to Phoenix Sky Harbor Intl Airport.

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

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

  • How can I find direct flights from Idaho 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 Idaho to Sky Harbor Intl.

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

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

    Currently, January is the cheapest month in which you can book a flight from Idaho to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Idaho 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
Globe
Goodyear
Glendale
Casa Grande
Buckeye
Camp Verde
Peoria
Surprise
Paradise Valley
Avondale
Guadalupe

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Alternative routes for Idaho to Sky Harbor Intl

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Top 8 airlines flying from Idaho to Sky Harbor Intl

Discover the top 8 airlines that operate flights from Idaho 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$91Average$224FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$102Average$170FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$106Average$236FlexibilityNo cancel feeOn-time88%
DeltaCheapest$108Average$446FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$158Average$410FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$159Average$285FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$168Average$435FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$501FlexibilityNo cancel feeOn-time69%

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