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$87+ Cheap flights from Idaho 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PHX
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheap flight deals from Idaho to Phoenix

Keep the following information in mind while searching for Idaho to Phoenix flight deals. Data was last updated April 30, 2025.

Round-trip from

$187
(Hawaiian Airlines)

One-way from

$89
(Delta)

Popular in

December

Cheapest in

September

Average price

$280
From Idaho to Phoenix
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One-way flight from Idaho to Phoenix
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Idaho to Phoenix

Cheapest flights from Idaho to Phoenix
Explore the most affordable flight options available from Idaho to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 4/29. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/125:44 pmBOI - PHX
Nonstop2h 12mHawaiian Airlines
Mon 6/237:38 pmPHX - BOI
Nonstop2h 07mHawaiian Airlines
Deal found 4/29$187
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/267:05 pmBOI - PHX
1 stop4h 50mSouthwest
Wed 7/307:45 amPHX - BOI
Nonstop2h 00mSouthwest
Deal found 4/28$189
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/34:59 pmBOI - PHX
1 stop6h 57mDelta
Tue 6/101:30 pmPHX - BOI
1 stop6h 05mDelta
Deal found 4/29$197
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 5/2012:20 pmBOI - PHX
Nonstop2h 07mAlaska Airlines
Sun 5/2510:31 amPHX - BOI
Nonstop2h 09mAlaska Airlines
Deal found 4/28$198
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/61:35 pmBOI - PHX
1 stop5h 29mUnited Airlines
Wed 5/75:15 amPHX - BOI
1 stop5h 01mUnited Airlines
Deal found 4/29$199
This Orbitz deal was found by Cheapflights users on 4/29. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2912:36 pmBOI - PHX
1 stop5h 46mMultiple Airlines
Sat 5/3110:31 amPHX - BOI
Nonstop2h 09mMultiple Airlines
Deal found 4/29$203
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/35:10 pmBOI - PHX
Nonstop2h 11mAmerican Airlines
Tue 6/108:20 pmPHX - BOI
Nonstop2h 16mAmerican Airlines
Deal found 4/29$213
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/35:46 pmGEG - PHX
1 stop6h 09mAlaska Airlines
Sat 9/66:15 pmPHX - GEG
1 stop5h 44mAlaska Airlines
Deal found 4/29$228
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/133:18 pmGEG - PHX
Nonstop2h 37mAmerican Airlines
Wed 5/1410:51 amPHX - GEG
Nonstop2h 46mAmerican Airlines
Deal found 4/28$229
This Delta deal was found by Cheapflights users on 4/28. 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.
Wed 5/287:15 amGEG - PHX
1 stop7h 31mDelta
Wed 6/43:41 pmPHX - GEG
1 stop5h 24mDelta
Deal found 4/28$233
This CheapOair deal was found by Cheapflights users on 4/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/152:57 pmBOI - PHX
1 stop9h 58mFrontier
Sun 5/185:50 amPHX - BOI
1 stop6h 47mFrontier
Deal found 4/29$238
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2911:49 amGEG - PHX
1 stop11h 52mFrontier
Sat 5/311:11 pmPHX - GEG
1 stop21h 52mFrontier
Deal found 4/28$238

Cheapflights Fare Finder

Customize your flight search to find flights from Idaho 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 April 30, 2025.
Use the filters below to find and compare flights from Idaho to Phoenix that are best for you.

Fly from

Idaho

Fly to

Phoenix

Route

Depart

Return

Price

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Thu 6/12

5:44 pm-6:56 pm

Nonstop2h 12m

Phoenix Sky Harbor Intl

Mon 6/23

7:38 pm-10:45 pm

Nonstop2h 07m

$187

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sat 7/26

7:05 pm-10:55 pm

1 stop4h 50m

Phoenix Sky Harbor Intl

Wed 7/30

7:45 am-10:45 am

Nonstop2h 00m

$189

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 5/27

7:18 pm-11:48 pm

1 stop5h 30m

Phoenix Sky Harbor Intl

Wed 5/28

6:00 am-11:54 am

1 stop4h 54m

$197

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 5/20

12:20 pm-1:27 pm

Nonstop2h 07m

Phoenix Sky Harbor Intl

Sun 5/25

10:31 am-1:40 pm

Nonstop2h 09m

$198

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 5/6

1:35 pm-6:04 pm

1 stop5h 29m

Phoenix Sky Harbor Intl

Wed 5/7

5:15 am-11:16 am

1 stop5h 01m

$199

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Thu 5/29

12:36 pm-5:22 pm

1 stop5h 46m

Phoenix Sky Harbor Intl

Sat 5/31

10:31 am-1:40 pm

Nonstop2h 09m

$203

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Tue 6/3

5:10 pm-6:21 pm

Nonstop2h 11m

Phoenix Sky Harbor Intl

Tue 6/10

8:20 pm-11:36 pm

Nonstop2h 16m

$213

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Tue 5/13

1:25 pm-6:47 pm

1 stop5h 22m

Phoenix Sky Harbor Intl

Wed 5/14

3:08 pm-7:58 pm

1 stop4h 50m

$228

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Tue 5/13

3:18 pm-5:55 pm

Nonstop2h 37m

Phoenix Sky Harbor Intl

Wed 5/14

10:51 am-1:37 pm

Nonstop2h 46m

$229

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Wed 5/28

7:15 am-2:46 pm

1 stop7h 31m

Phoenix Sky Harbor Intl

Wed 6/4

3:41 pm-9:05 pm

1 stop5h 24m

$233

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 54 results
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Best time to book a flight from Idaho to Phoenix

Have a flexible travel schedule? Discover the best time to fly to Phoenix 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

What is the cheapest month to book a flight from Idaho to Phoenix?

Currently, January is the cheapest month in which you can book a flight from Idaho to Phoenix (average of $258). Flying from Idaho to Phoenix 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 Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 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 as you normally would.

Weekly flight availability from Idaho to Phoenix

Explore weekly flight availability from Idaho to Phoenix. 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 April 30, 2025.

The most flights from USID to PH1 are scheduled on a Monday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Phoenix by month

Plan your trip to Phoenix by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phoenix ranges from 0.0 - 1.1 inches per month. July is typically the wettest month, when rainfall can reach 1.1 in. June is typically the driest time to visit Phoenix when rainfall is around 0.0 in.

Temperature in Phoenix by month

Plan your trip to Phoenix by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phoenix, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 95.0 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 55.4 F).

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 April 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Idaho to Phoenix. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,406 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Phoenix. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Idaho to Phoenix one-way?

    One-way options have recently been found by users for as low as $89 on Delta. Other airlines that offer cheap prices include Hawaiian Airlines from $90 and United Airlines from $99 one-way.

  • What are the most popular routes from Idaho to Phoenix?

    When deciding which route to take from Idaho to Phoenix 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?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Idaho to Phoenix on time: Southwest (95%), Alaska Airlines (86%), American Airlines (85%).

  • What are the cheapest flights from Idaho to Phoenix?

    The cheapest flight price from Idaho to Phoenix is $88. On average you can expect to pay $442. The most popular route, (Boise Air Term. Gowen Fld - Phoenix Sky Harbor Intl), can usually be booked for $177.

  • Can I find deals for flights from Idaho to Phoenix that include hotel bookings?

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

  • How can I find direct flights from Idaho to Phoenix?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Phoenix.

  • Can I find deals for business class flights from Idaho to Phoenix?

    Yes. Cheapflights offers flight deals from Idaho 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 Idaho to Phoenix?

    Currently, January is the cheapest month in which you can book a flight from Idaho to Phoenix (average of $258). Flying from Idaho to Phoenix 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

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Alternative routes for Idaho to Phoenix

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Idaho to Phoenix

Discover the top 8 airlines that operate flights from Idaho 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$80Average$206FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$85Average$189FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$88Average$252FlexibilityNo cancel feeOn-time85%
DeltaCheapest$156Average$451FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$157Average$358FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$169Average$296FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$188Average$444FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$526FlexibilityNo cancel feeOn-time69%

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