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Sky Harbor Intl

$53+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PHX
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
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 February 4, 2026.

This CheapOair deal was found by Cheapflights users on 2/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2612:22 pm
GEG
-
PHX
1 stop18h 20m
Frontier
Sat 2/289:22 am
PHX
-
GEG
1 stop27h 52m
Frontier
Deal found 2/3$149
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/19:15 pm
GEG
-
PHX
1 stop22h 19m
Multiple Airlines
Thu 3/56:00 am
PHX
-
GEG
1 stop6h 27m
Multiple Airlines
Deal found 2/3$172
This Expedia deal was found by Cheapflights users on 2/2. 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.
Mon 2/234:02 pm
BOI
-
PHX
1 stop7h 57m
Multiple Airlines
Thu 2/266:00 am
PHX
-
BOI
1 stop5h 51m
Multiple Airlines
Deal found 2/2$173
This Delta deal was found by Cheapflights users on 2/1. 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.
Fri 3/279:00 am
BOI
-
PHX
1 stop8h 40m
Delta
Sun 4/55:35 pm
PHX
-
BOI
1 stop5h 10m
Delta
Deal found 2/1$174
This CheapOair deal was found by Cheapflights users on 2/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1912:22 pm
GEG
-
PHX
1 stop18h 20m
Frontier
Thu 2/266:00 am
PHX
-
GEG
1 stop6h 27m
Frontier
Deal found 2/2$175
This Southwest deal was found by Cheapflights users on 2/2. 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.
Mon 2/236:00 am
BOI
-
PHX
Nonstop2h 15m
Southwest
Thu 2/2611:00 am
PHX
-
BOI
Nonstop2h 10m
Southwest
Deal found 2/2$177
This Southwest deal was found by Cheapflights users on 2/2. 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.
Wed 3/410:45 am
BOI
-
PHX
2 stops9h 10m
Southwest
Wed 3/119:35 am
PHX
-
BOI
Nonstop2h 15m
Southwest
Deal found 2/2$182
This Orbitz deal was found by Cheapflights users on 2/3. 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.
Fri 4/105:11 pm
GEG
-
PHX
Nonstop2h 33m
Multiple Airlines
Fri 4/176:28 pm
PHX
-
GEG
1 stop5h 31m
Multiple Airlines
Deal found 2/3$182
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/1511:56 am
BOI
-
PHX
1 stop6h 35m
Frontier
Wed 2/256:51 pm
PHX
-
BOI
1 stop17h 00m
Frontier
Deal found 2/2$185
This Super.com deal was found by Cheapflights users on 2/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/18:12 pm
GEG
-
PHX
Nonstop2h 47m
Frontier
Thu 3/58:00 am
PHX
-
GEG
Nonstop2h 55m
Frontier
Deal found 2/3$186
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Sun 3/16:33 pm
BOI
-
PHX
Nonstop2h 21m
American Airlines
Wed 3/49:20 pm
PHX
-
BOI
Nonstop2h 18m
American Airlines
Deal found 2/3$188
This American Airlines deal was found by Cheapflights users on 2/3. 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.
Wed 3/412:42 pm
BOI
-
PHX
Nonstop2h 22m
American Airlines
Wed 3/118:30 am
PHX
-
BOI
Nonstop2h 30m
American Airlines
Deal found 2/3$189

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 February 4, 2026.

Round-trip from

$149
(CheapOair)

One-way from

$53
(Super.com)

Popular in

March

Cheapest in

September

Average price

$291

Good round-trip deal

$288 or less

Good one-way deal

$165 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. 10% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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.
Search Deals

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 February 4, 2026.
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

Mon 3/2

3:20 pm-5:20 pm

Nonstop2h 00m

Phoenix Sky Harbor Intl

Thu 3/5

1:35 pm-3:40 pm

Nonstop2h 05m

$177

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Mon 2/23

7:15 am-9:37 am

Nonstop2h 22m

Phoenix Sky Harbor Intl

Thu 2/26

10:19 am-12:45 pm

Nonstop2h 26m

$177

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Wed 4/22

3:44 pm-9:48 pm

1 stop7h 04m

Phoenix Sky Harbor Intl

Sat 4/25

8:35 am-4:14 pm

1 stop6h 39m

$177

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sat 3/7

5:15 am-7:30 am

Nonstop2h 15m

Phoenix Sky Harbor Intl

Wed 3/11

6:10 am-11:50 am

1 stop4h 40m

$177

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sat 3/7

10:41 am-7:05 pm

1 stop8h 24m

Phoenix Sky Harbor Intl

Wed 3/11

5:35 pm-11:44 pm

1 stop5h 09m

$177

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Fri 4/10

5:11 pm-7:44 pm

Nonstop2h 33m

Phoenix Sky Harbor Intl

Fri 4/17

6:28 pm-11:59 pm

1 stop5h 31m

$182

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Fri 5/1

5:30 am-6:35 am

Nonstop2h 05m

Phoenix Sky Harbor Intl

Mon 5/4

10:15 am-6:20 pm

1 stop7h 05m

$187

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sat 4/4

6:15 pm-10:21 pm

1 stop5h 06m

Phoenix Sky Harbor Intl

Sun 4/5

6:15 am-1:05 pm

1 stop5h 50m

$187

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Wed 4/22

10:41 am-4:45 pm

1 stop7h 04m

Phoenix Sky Harbor Intl

Mon 4/27

11:45 am-7:55 pm

1 stop7h 10m

$187

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Mon 3/16

7:30 pm-11:58 pm

1 stop5h 28m

Phoenix Sky Harbor Intl

Wed 4/8

12:55 pm-9:01 pm

1 stop7h 06m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

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 April is currently the most expensive (average of $171). 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 February 4, 2026.

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 at noon, which can drop the price by up to 47% versus a flight in the evening.

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 February 4, 2026.

The most flights from USID to PHX are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 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 Southwest, Alaska Airlines, and Delta fly from Idaho to Phoenix Sky Harbor Intl Airport in about 2h. The time it takes to get you to your destination can typically vary by up to 5h 04m. 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 $76. 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 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: Porter Airlines (93%), Alaska Airlines (86%), 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 $88. While the most popular route (Spokane - Phoenix Sky Harbor Intl) can be booked for $182 on average, our data indicates $680 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 April is currently the most expensive (average of $171). 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
Goodyear
Paradise Valley
Casa Grande
Globe
Peoria
Chandler
Payson
Camp Verde
Buckeye
Surprise
Guadalupe

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Alternative routes for Idaho to Sky Harbor Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Idaho to Sky Harbor Intl

Discover the top 7 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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$82Average$201FlexibilityNo cancel feeOn-time88%
DeltaCheapest$88Average$372FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$88Average$236FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$157Average$298FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$157Average$270FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$158Average$348FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$183Average$374FlexibilityNo cancel feeOn-time69%

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