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Idaho

$79+ Cheap flights from Phoenix to Idaho

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Phoenix to Idaho

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) to Idaho (USID). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$177
(Delta)

One-way from

$79
(Southwest)
From Phoenix to Idaho
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One-way flight from Phoenix to Idaho
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Find flight deals from Phoenix to Idaho

Cheapest flights from Phoenix to Idaho
Explore the most affordable flight options available from Phoenix to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Delta deal was found by Cheapflights users on 1/20. 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 2/196:31 pmPHX - GEG
1 stop6h 11mDelta
Wed 2/265:00 amGEG - PHX
1 stop5h 09mDelta
Deal found 1/20$177
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 2/2711:05 amPHX - BOI
Nonstop2h 11mAmerican Airlines
Sat 3/11:56 pmBOI - PHX
Nonstop2h 18mAmerican Airlines
Deal found 1/20$178
This Delta deal was found by Cheapflights users on 1/20. 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 3/116:00 amPHX - BOI
1 stop6h 25mDelta
Tue 3/115:59 pmBOI - PHX
1 stop6h 54mDelta
Deal found 1/20$179
This CheapOair deal was found by Cheapflights users on 1/20. 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 3/132:07 pmPHX - BOI
1 stop21h 25mSpirit Airlines
Tue 3/181:31 pmBOI - PHX
1 stop26h 41mSpirit Airlines
Deal found 1/20$187
This Southwest deal was found by Cheapflights users on 1/20. 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 2/279:55 pmPHX - GEG
Nonstop2h 45mSouthwest
Wed 3/57:20 amGEG - PHX
Nonstop2h 50mSouthwest
Deal found 1/20$187
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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 2/142:08 pmAZA - BOI
Nonstop2h 11mAllegiant Air
Mon 2/175:09 pmBOI - AZA
Nonstop2h 17mAllegiant Air
Deal found 1/20$188
This Southwest deal was found by Cheapflights users on 1/21. 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 2/157:00 amPHX - BOI
1 stop3h 45mSouthwest
Tue 2/253:40 pmBOI - PHX
Nonstop2h 05mSouthwest
Deal found 1/21$188
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Fri 3/77:46 pmPHX - BOI
Nonstop2h 19mAlaska Airlines
Mon 3/105:02 pmBOI - PHX
Nonstop2h 04mAlaska Airlines
Deal found 1/20$217
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 2/209:24 pmPHX - GEG
Nonstop2h 43mAmerican Airlines
Mon 2/246:32 amGEG - PHX
Nonstop2h 47mAmerican Airlines
Deal found 1/20$217
This United Airlines deal was found by Cheapflights users on 1/21. 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 3/259:57 amPHX - BOI
1 stop5h 22mUnited Airlines
Thu 3/275:25 pmBOI - PHX
1 stop5h 26mUnited Airlines
Deal found 1/21$219
This Orbitz deal was found by Cheapflights users on 1/20. 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.
Mon 1/2711:56 amPHX - BOI
1 stop6h 47mMultiple Airlines
Thu 1/302:40 pmBOI - PHX
1 stop6h 23mMultiple Airlines
Deal found 1/20$272
This Delta deal was found by Cheapflights users on 1/20. 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 2/116:31 pmPHX - IDA
1 stop4h 13mDelta
Tue 2/186:58 pmIDA - PHX
1 stop5h 48mDelta
Deal found 1/20$277

Find flights from Phoenix to Idaho within your budget

Customize your flight search to find flights from Phoenix to Idaho 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhoenixSpokane

PHX - GEG

PHXGEG

Phoenix Sky Harbor Intl

Wed 2/19

6:31 pm-11:42 pm

1 stop6h 11m

Spokane

Wed 2/26

5:00 am-11:09 am

1 stop5h 09m

$177

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Thu 2/27

11:05 am-1:16 pm

Nonstop2h 11m

Boise Air Term. Gowen Fld

Sat 3/1

1:56 pm-4:14 pm

Nonstop2h 18m

$178

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Tue 3/11

6:00 am-1:25 pm

1 stop6h 25m

Boise Air Term. Gowen Fld

Tue 3/11

5:59 pm-11:53 pm

1 stop6h 54m

$179

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Mon 3/10

2:07 pm-12:32 pm

1 stop21h 25m

Boise Air Term. Gowen Fld

Mon 3/17

1:31 pm-1:12 pm

1 stop24h 41m

$182

PhoenixSpokane

PHX - GEG

PHXGEG

Phoenix Sky Harbor Intl

Thu 2/27

9:55 pm-11:40 pm

Nonstop2h 45m

Spokane

Wed 3/5

7:20 am-11:10 am

Nonstop2h 50m

$187

PhoenixBoise

AZA - BOI

AZABOI

Phoenix-Mesa Gateway

Fri 2/14

2:08 pm-4:19 pm

Nonstop2h 11m

Boise Air Term. Gowen Fld

Mon 2/17

5:09 pm-7:26 pm

Nonstop2h 17m

$188

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Sat 2/15

7:00 am-10:45 am

1 stop3h 45m

Boise Air Term. Gowen Fld

Tue 2/25

3:40 pm-5:45 pm

Nonstop2h 05m

$188

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Fri 3/7

7:46 pm-10:05 pm

Nonstop2h 19m

Boise Air Term. Gowen Fld

Mon 3/10

5:02 pm-6:06 pm

Nonstop2h 04m

$217

PhoenixSpokane

PHX - GEG

PHXGEG

Phoenix Sky Harbor Intl

Thu 2/20

9:24 pm-11:07 pm

Nonstop2h 43m

Spokane

Mon 2/24

6:32 am-10:19 am

Nonstop2h 47m

$217

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Tue 3/25

9:57 am-4:19 pm

1 stop5h 22m

Boise Air Term. Gowen Fld

Thu 3/27

5:25 pm-9:51 pm

1 stop5h 26m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 51 results
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Best time to book a flight from Phoenix to Idaho

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

Travel insights for flights from Phoenix to Idaho

Get recent, data-driven insights about flights from Phoenix to Idaho including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Phoenix to Idaho (average of $314). Flying from Phoenix to Idaho in June is currently the most expensive (average of $436). 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 PHX to ID?

Find hourly flight availability from Phoenix to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

When flying from Phoenix to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Phoenix to Idaho

Explore weekly flight availability from Phoenix to Idaho. 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 January 21, 2025.

The most flights from PH1 to USID are scheduled on a Monday (10 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Idaho by month

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

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

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

If weather is an important factor for your trip to Idaho, 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 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated January 21, 2025.
Read through reviews of airlines operating flights from Phoenix to Idaho, such as United Airlines, Alaska Airlines and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Allegiant Air
7.4
Good
801 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Phoenix to Idaho. 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 Phoenix to Idaho one-way?

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as $79. Users have also found prices from $89 and $110 on Delta and American Airlines, respectively.

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

    The most popular route from Phoenix to Idaho is Phoenix Sky Harbor Intl - Boise Air Term. Gowen Fld. You may also consider Phoenix Sky Harbor Intl - Spokane or Phoenix Sky Harbor Intl - Jackson Hole.

  • What are the most reliable airlines from Phoenix to Idaho?

    No one likes to see their flight delayed. When booking a flight from Phoenix to Idaho consider choosing Envoy Air (100%), United Airlines (100%) or Horizon Air (98%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Phoenix to Idaho?

    While on average a flight from Phoenix to Idaho is generally $293, our data shows the cheapest flight currently is $98. When looking at the most popular route, (Phoenix Sky Harbor Intl - Boise Air Term. Gowen Fld), you can expect to pay $139 for that flight.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Phoenix to Idaho (average of $314). Flying from Phoenix to Idaho in June is currently the most expensive (average of $436). 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.

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Alternative routes for Phoenix to Idaho

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Top 7 airlines flying from Phoenix to Idaho

Discover the top 7 airlines that operate flights from Phoenix to Idaho. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$78Average$164FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$87Average$162FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$152Average$367FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$167Average$347FlexibilityNo cancel feeOn-time71%
DeltaCheapest$168Average$463FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$169Average$251FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$196Average$517FlexibilityNo cancel feeOn-time69%
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