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Sky Harbor Intl

$20+ 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 12/25. 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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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 October 30, 2025.

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:08 pmGEG - PHX
1 stop18h 58mFrontier
Sun 12/77:00 amPHX - GEG
1 stop5h 13mFrontier
Deal found 10/28$143
This Expedia 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 Expedia 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
Tue 12/304:41 pmPHX - GEG
1 stop8h 18mMultiple Airlines
Deal found 10/28$154
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:48 pmGEG - PHX
Nonstop3h 04mFrontier
Sat 1/37:00 amPHX - GEG
1 stop5h 07mFrontier
Deal found 10/29$155
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:48 pmGEG - PHX
Nonstop3h 04mFrontier
Thu 1/12:02 pmPHX - GEG
Nonstop2h 51mFrontier
Deal found 10/30$161
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/97:00 amGEG - PHX
1 stop7h 13mMultiple Airlines
Sun 12/147:00 amPHX - GEG
1 stop5h 13mMultiple Airlines
Deal found 10/30$162
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 Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:51 amGEG - PHX
1 stop5h 32mMultiple Airlines
Thu 12/42:15 pmPHX - GEG
Nonstop2h 51mMultiple Airlines
Deal found 10/30$169
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 Orbitz 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 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 12/3112:42 pmPHX - GEG
1 stop12h 17mMultiple Airlines
Deal found 10/28$172
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:08 pmGEG - PHX
1 stop11h 36mMultiple Airlines
Mon 12/83:10 pmPHX - GEG
1 stop7h 18mMultiple Airlines
Deal found 10/28$174

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 October 30, 2025.

Round-trip from

$143
(Frontier)

One-way from

$20
(Frontier)

Popular in

December

Cheapest in

September

Average price

$290

Good round-trip deal

$284 or less

Good one-way deal

$128 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. 17% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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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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 October 30, 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

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

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Sun 12/14

12:08 pm-12:44 am

1 stop11h 36m

Phoenix Sky Harbor Intl

Tue 12/16

7:56 pm-11:59 pm

1 stop5h 03m

$171

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

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Wed 12/10

7:00 am-3:13 pm

1 stop7h 13m

Phoenix Sky Harbor Intl

Tue 12/16

7:56 pm-11:59 pm

1 stop5h 03m

$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

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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 $115). Flying from Idaho to Phoenix Sky Harbor Intl Airport in December is currently the most expensive (average of $185). 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 October 30, 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 45% 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 October 26, 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.

How much does it cost to fly round-trip from Idaho to Phoenix Sky Harbor Intl Airport?

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, Delta, and American Airlines fly from Idaho to Phoenix Sky Harbor Intl Airport in about 2h 31m. The time it takes to get you to your destination can typically vary by up to 4h 35m. 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 Frontier. According to our data, you can fly for as low as $72. Users have also found prices from $77 and $77 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 Spokane - Phoenix Sky Harbor Intl, Boise Air Term. Gowen Fld - 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: Horizon Air (93%), American Airlines (87%), SkyWest Airlines( 83%).

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

    Looking at all options, your cheapest flight can be booked for $76. While the most popular route (Spokane - Phoenix Sky Harbor Intl) can be booked for $131 on average, our data indicates $351 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 $115). Flying from Idaho to Phoenix Sky Harbor Intl Airport in December is currently the most expensive (average of $185). 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
Glendale
Payson
Chandler
Casa Grande
Globe
Goodyear
Peoria
Camp Verde
Buckeye
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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$98Average$244FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$102Average$170FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$106Average$220FlexibilityNo cancel feeOn-time88%
DeltaCheapest$108Average$446FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$157Average$411FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$158Average$283FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$173Average$437FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$524FlexibilityNo cancel feeOn-time69%

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