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Sky Harbor Intl

$39+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PHX
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This Orbitz deal was found by Cheapflights users on 12/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:48 pmGEG - PHX
Nonstop3h 04mFrontier
Tue 12/307:00 amPHX - GEG
1 stop5h 07mFrontier
Deal found 12/16$146
This Delta deal was found by Cheapflights users on 12/17. 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 12/255:50 amBOI - PHX
1 stop4h 15mDelta
Thu 1/15:37 pmPHX - BOI
1 stop5h 20mDelta
Deal found 12/17$175
This Frontier deal was found by Cheapflights users on 12/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:38 pmBOI - PHX
1 stop11h 51mFrontier
Thu 1/17:00 amPHX - BOI
1 stop4h 43mFrontier
Deal found 12/16$188
This Priceline deal was found by Cheapflights users on 12/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:48 pmGEG - PHX
Nonstop3h 04mFrontier
Sun 12/282:02 pmPHX - GEG
Nonstop2h 51mFrontier
Deal found 12/16$198
This Frontier deal was found by Cheapflights users on 12/17. 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 12/2512:38 pmBOI - PHX
1 stop11h 51mFrontier
Sat 1/37:00 amPHX - BOI
1 stop4h 59mFrontier
Deal found 12/17$214
This Priceline deal was found by Cheapflights users on 12/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:48 pmGEG - PHX
Nonstop3h 04mFrontier
Tue 12/307:00 amPHX - GEG
1 stop5h 07mFrontier
Deal found 12/15$216
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:45 pmBOI - PHX
Nonstop2h 11mAlaska Airlines
Tue 1/69:38 pmPHX - BOI
Nonstop2h 21mAlaska Airlines
Deal found 12/16$245
This Orbitz deal was found by Cheapflights users on 12/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:48 pmGEG - PHX
Nonstop3h 04mMultiple Airlines
Wed 12/317:10 pmPHX - GEG
1 stop6h 22mMultiple Airlines
Deal found 12/16$253
This Southwest deal was found by Cheapflights users on 12/17. 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 12/255:30 pmBOI - PHX
1 stop4h 40mSouthwest
Fri 1/28:55 amPHX - BOI
Nonstop2h 10mSouthwest
Deal found 12/17$254
This Expedia deal was found by Cheapflights users on 12/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/304:48 pmGEG - PHX
Nonstop3h 04mFrontier
Sat 1/37:00 amPHX - GEG
1 stop5h 07mFrontier
Deal found 12/17$257
This Delta deal was found by Cheapflights users on 12/18. 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 12/246:19 pmBOI - PHX
1 stop5h 36mDelta
Sat 12/275:37 pmPHX - BOI
1 stop5h 20mDelta
Deal found 12/18$264
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:50 amBOI - PHX
1 stop4h 12mDelta
Tue 1/66:20 pmPHX - BOI
1 stop4h 52mDelta
Deal found 12/16$265

Find 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 December 18, 2025.

Round-trip from

$122
(Expedia)

One-way from

$39
(Super.com)

Popular in

December

Cheapest in

September

Average price

$512

Good round-trip deal

$288 or less

Good one-way deal

$161 or less
From Idaho to Phoenix Sky Harbor Intl
Search Deals
One-way flight from Idaho to Phoenix Sky Harbor Intl
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Idaho to Phoenix Sky Harbor Intl.
Search Deals
Price to beat on a one-way flight from Idaho to Phoenix Sky Harbor Intl.
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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 December 18, 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

Wed 2/18

5:25 pm-10:05 pm

1 stop4h 40m

Phoenix Sky Harbor Intl

Tue 2/24

11:35 am-5:15 pm

1 stop5h 40m

$175

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sat 1/10

11:35 am-7:48 pm

1 stop8h 13m

Phoenix Sky Harbor Intl

Sat 1/17

5:12 pm-11:01 pm

1 stop5h 49m

$175

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 1/13

5:40 am-11:08 am

1 stop5h 28m

Phoenix Sky Harbor Intl

Tue 1/20

6:20 pm-11:12 pm

1 stop4h 52m

$176

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sat 2/28

7:00 am-11:40 am

1 stop4h 40m

Phoenix Sky Harbor Intl

Wed 3/4

4:27 pm-11:30 pm

1 stop7h 03m

$176

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 1/13

10:45 am-7:55 pm

2 stops9h 10m

Phoenix Sky Harbor Intl

Wed 1/14

11:35 am-5:15 pm

1 stop5h 40m

$182

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sat 1/17

5:35 am-9:55 am

1 stop4h 20m

Phoenix Sky Harbor Intl

Sat 1/17

3:45 pm-8:15 pm

1 stop4h 30m

$185

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Fri 1/9

6:15 pm-11:50 pm

1 stop5h 35m

Phoenix Sky Harbor Intl

Sun 1/18

6:20 am-1:00 pm

1 stop6h 40m

$186

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Wed 1/7

5:15 pm-11:54 pm

1 stop6h 39m

Phoenix Sky Harbor Intl

Fri 1/9

6:20 am-1:00 pm

1 stop6h 40m

$187

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Fri 2/27

5:25 am-7:40 am

Nonstop2h 15m

Phoenix Sky Harbor Intl

Sun 3/1

5:30 am-10:10 am

1 stop4h 40m

$187

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 1/27

6:40 am-9:00 am

Nonstop2h 20m

Phoenix Sky Harbor Intl

Tue 2/17

7:20 am-2:45 pm

1 stop7h 25m

$188

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

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, June is the cheapest month in which you can book a flight from Idaho to Phoenix Sky Harbor Intl Airport (average of $114). Flying from Idaho to Phoenix Sky Harbor Intl Airport in December is currently the most expensive (average of $192). 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 December 18, 2025.

When flying from Idaho 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 in the evening, which can drop the price by up to 31% versus a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Idaho to Sky Harbor Intl. Price data was last updated on December 13, 2025.

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

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 Southwest, Alaska Airlines, and Delta fly from Idaho to Phoenix Sky Harbor Intl Airport in about 4h 40m. The time it takes to get you to your destination can typically vary by up to 3h 33m. 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 Southwest. According to our data, you can fly for as low as $78. Users have also found prices from $78 and $78 on Alaska Airlines and American Airlines, 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 Jackson Hole - 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: Porter Airlines (95%), Envoy Air (88%), Southwest( 86%).

  • 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 $156 on average, our data indicates $310 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, June is the cheapest month in which you can book a flight from Idaho to Phoenix Sky Harbor Intl Airport (average of $114). Flying from Idaho to Phoenix Sky Harbor Intl Airport in December is currently the most expensive (average of $192). 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
Goodyear
Paradise Valley
Glendale
Casa Grande
Chandler
Payson
Globe
Peoria
Camp Verde
Buckeye
Surprise
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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$68Average$153FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$82Average$202FlexibilityNo cancel feeOn-time88%
Hawaiian AirlinesCheapest$98Average$244FlexibilityNo cancel feeOn-time85%
DeltaCheapest$108Average$421FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$157Average$408FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$157Average$281FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$161Average$387FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$611FlexibilityNo cancel feeOn-time69%

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