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$77+ 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PHX
Jul 30 — Aug 61
Thu 7/30
Thu 8/6
1 adult, Economy
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Cheap 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 June 30, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:12 am
GEG
-
PHX
1 stop26h 36m
Multiple Airlines
Wed 9/210:09 pm
PHX
-
GEG
1 stop11h 10m
Multiple Airlines
Deal found 6/30$192
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:33 pm
IDA
-
PHX
1 stop20h 26m
Multiple Airlines
Thu 8/2710:30 pm
PHX
-
IDA
1 stop10h 52m
Multiple Airlines
Deal found 6/28$207
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2410:47 pm
IDA
-
PHX
1 stop13h 40m
Multiple Airlines
Mon 7/2712:20 pm
PHX
-
IDA
1 stop8h 37m
Multiple Airlines
Deal found 6/30$220
This Alaska Airlines deal was found by Cheapflights users on 6/29. 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.
Tue 8/257:03 am
GEG
-
PHX
1 stop7h 30m
Alaska Airlines
Sat 8/293:15 pm
PHX
-
GEG
1 stop7h 34m
Alaska Airlines
Deal found 6/29$233
This Alaska Airlines deal was found by Cheapflights users on 6/29. 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.
Tue 8/115:07 am
GEG
-
PHX
1 stop7h 54m
Alaska Airlines
Wed 8/121:05 pm
PHX
-
GEG
1 stop10h 02m
Alaska Airlines
Deal found 6/29$234
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2112:49 pm
GEG
-
PHX
1 stop4h 46m
Alaska Airlines
Mon 9/284:13 pm
PHX
-
GEG
1 stop7h 46m
Alaska Airlines
Deal found 6/30$235
This American Airlines deal was found by Cheapflights users on 6/28. 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.
Mon 9/216:30 am
GEG
-
PHX
Nonstop2h 50m
American Airlines
Mon 9/284:57 pm
PHX
-
GEG
Nonstop2h 42m
American Airlines
Deal found 6/28$237
This American Airlines deal was found by Cheapflights users on 6/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:30 am
GEG
-
PHX
Nonstop2h 50m
American Airlines
Fri 9/184:57 pm
PHX
-
GEG
Nonstop2h 42m
American Airlines
Deal found 6/30$239
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Mon 7/2710:47 pm
IDA
-
PHX
1 stop25h 18m
Multiple Airlines
Mon 8/312:20 pm
PHX
-
IDA
1 stop8h 37m
Multiple Airlines
Deal found 6/29$240
This Trip.com deal was found by Cheapflights users on 6/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:00 am
GEG
-
PHX
1 stop4h 49m
Alaska Airlines
Fri 8/213:15 pm
PHX
-
GEG
1 stop7h 34m
Alaska Airlines
Deal found 6/30$240
This Booking.com deal was found by Cheapflights users on 6/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:15 am
GEG
-
PHX
1 stop28h 08m
Alaska Airlines
Mon 8/173:13 pm
PHX
-
GEG
1 stop7h 54m
Alaska Airlines
Deal found 6/29$241
This Kiwi.com deal was found by Cheapflights users on 6/25. 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.
Mon 7/2010:47 pm
IDA
-
PHX
1 stop15h 12m
Multiple Airlines
Thu 7/232:16 pm
PHX
-
IDA
2 stops24h 44m
Multiple Airlines
Deal found 6/25$244

Find flight deals from Idaho to Phoenix

Keep the following information in mind while searching for Idaho to Phoenix flight deals. Data was last updated June 30, 2026.

Round-trip from

$192
(Kiwi.com)

One-way from

$77
(Trip.com)

Popular in

June

Cheapest in

September

Average price

$380
From Idaho to Phoenix
Search Deals
One-way flight from Idaho to Phoenix
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 June 30, 2026.
Use the filters below to find and compare flights from Idaho to Phoenix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Tue 8/25

7:03 am-2:33 pm

1 stop7h 30m

Phoenix Sky Harbor Intl

Sat 8/29

3:15 pm-10:49 pm

1 stop7h 34m

$233

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Wed 7/29

5:35 am-11:25 am

2 stops5h 50m

Phoenix Sky Harbor Intl

Sat 8/1

8:50 pm-11:25 pm

Nonstop2h 35m

$252

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Sat 7/18

5:00 am-9:49 am

1 stop4h 49m

Phoenix Sky Harbor Intl

Tue 7/21

6:53 pm-11:07 pm

1 stop28h 14m

$253
Quickest round-trip

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Thu 10/22

5:03 pm-6:19 pm

Nonstop2h 16m

Phoenix Sky Harbor Intl

Mon 10/26

7:01 pm-10:18 pm

Nonstop2h 17m

$257

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Wed 8/19

11:30 am-6:15 pm

2 stops7h 45m

Phoenix Sky Harbor Intl

Sun 8/23

8:45 am-11:50 am

Nonstop2h 05m

$262

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Sat 11/7

11:00 am-5:16 pm

1 stop6h 16m

Phoenix Sky Harbor Intl

Thu 11/12

5:10 pm-11:08 pm

1 stop5h 58m

$267

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Wed 10/7

1:50 pm-6:05 pm

1 stop5h 15m

Phoenix Sky Harbor Intl

Thu 10/8

7:15 am-1:15 pm

1 stop5h 00m

$267

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Fri 7/24

2:55 pm-4:14 pm

Nonstop2h 19m

Phoenix Sky Harbor Intl

Mon 7/27

3:13 pm-1:46 pm

1 stop21h 33m

$275

BoisePhoenix

BOI - PHX

BOIPHX

Boise Air Term. Gowen Fld

Fri 8/14

2:55 pm-4:14 pm

Nonstop2h 19m

Phoenix Sky Harbor Intl

Mon 8/17

6:53 pm-1:46 pm

1 stop17h 53m

$275

SpokanePhoenix

GEG - PHX

GEGPHX

Spokane

Sat 7/18

6:30 am-9:14 am

Nonstop2h 44m

Phoenix Sky Harbor Intl

Tue 7/21

8:30 pm-11:06 pm

Nonstop2h 36m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/27

Showing 1-10 of 60 resultsSorted by cheapest first
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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, December is the cheapest month in which you can book a flight from Idaho to Phoenix (average of $73). Flying from Idaho to Phoenix in July is currently the most expensive (average of $115). 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 June 30, 2026.

When flying from Idaho to Phoenix, 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 37% versus a flight in the morning.

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 June 30, 2026.

The most flights from USID to PH1 are scheduled on a Monday (6 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

How much does it cost to fly round-trip from Idaho to Phoenix?

How far ahead should I book a flight from Idaho to Phoenix?

The best time to book flights from Idaho to Phoenix is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from Idaho to Phoenix?

Use this chart to determine the cheapest time to fly round-trip from Idaho to Phoenix. Price data was last updated on June 27, 2026.

Travelers seeking maximum savings on their Idaho to Phoenix flight should consider departing on Monday evenings when fares are most often at their lowest. Tuesday evenings 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 Phoenix. 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?

    There are many flights that can get you from Idaho to Phoenix in 5h 50m. Fly via Alaska Airlines, Southwest, or Delta to get the fastest option. The distance from Idaho to Phoenix is about 1021 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $51 on Allegiant Air. Other airlines that offer cheap prices include Alaska Airlines from $78 and Southwest from $78 one-way.

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

    When deciding which route to take from Idaho to Phoenix 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?

    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: SkyWest Airlines (90%), Southwest (87%), American Airlines (83%).

  • What are the cheapest flights from Idaho to Phoenix?

    The cheapest flight price from Idaho to Phoenix is $143. On average you can expect to pay $610. The most popular route, (Spokane - Phoenix Sky Harbor Intl), can usually be booked for $235.

  • 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, December is the cheapest month in which you can book a flight from Idaho to Phoenix (average of $73). Flying from Idaho to Phoenix in July is currently the most expensive (average of $115). 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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Top 7 airlines flying from Idaho to Phoenix

Discover the top 7 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 June 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$78Average$244FlexibilityNo cancel feeOn-time85%
Allegiant AirCheapest$82Average$161FlexibilityNo cancel feeOn-time88%
DeltaCheapest$98Average$404FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$157Average$267FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$157Average$282FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$162Average$364FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$325FlexibilityNo cancel feeOn-time69%

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