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Idaho

$50+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Phoenix to Idaho

Keep the following information in mind while searching for Phoenix to Idaho flight deals. Data was last updated June 12, 2025.

Round-trip from

$159
(Alaska Airlines)

One-way from

$50
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$269
From Phoenix to Idaho
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One-way flight from Phoenix to Idaho
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Highest demand for flights based on searches. 4% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 8/77:38 pmPHX - BOI
Nonstop2h 07mAlaska Airlines
Sat 8/96:07 pmBOI - PHX
Nonstop2h 12mAlaska Airlines
Deal found 6/11$159
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 8/257:59 pmPHX - BOI
Nonstop2h 08mHawaiian Airlines
Tue 8/266:05 pmBOI - PHX
Nonstop2h 12mHawaiian Airlines
Deal found 6/10$161
This Delta deal was found by Cheapflights users on 6/10. 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 7/87:32 pmPHX - BOI
1 stop3h 37mDelta
Tue 7/157:30 amBOI - PHX
1 stop6h 00mDelta
Deal found 6/10$177
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/98:20 pmPHX - BOI
Nonstop2h 13mAmerican Airlines
Sat 7/125:17 pmBOI - PHX
Nonstop2h 16mAmerican Airlines
Deal found 6/10$179
This Southwest deal was found by Cheapflights users on 6/11. 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.
Tue 7/157:00 pmPHX - BOI
1 stop4h 25mSouthwest
Fri 7/185:05 pmBOI - PHX
Nonstop2h 05mSouthwest
Deal found 6/11$198
This Delta deal was found by Cheapflights users on 6/10. 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 9/99:55 amPHX - WYS
1 stop3h 55mDelta
Wed 9/173:28 pmWYS - PHX
1 stop3h 59mDelta
Deal found 6/10$204
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/86:41 pmAZA - BOI
Nonstop2h 02mMultiple Airlines
Sat 8/92:29 pmBOI - AZA
2 stops25h 26mMultiple Airlines
Deal found 6/10$223
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 7/58:23 pmPHX - GEG
Nonstop2h 34mAmerican Airlines
Sat 7/126:57 amGEG - PHX
Nonstop2h 37mAmerican Airlines
Deal found 6/10$246
This Southwest deal was found by Cheapflights users on 6/10. 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.
Fri 8/18:35 pmPHX - GEG
Nonstop2h 35mSouthwest
Mon 8/46:10 amGEG - PHX
Nonstop2h 35mSouthwest
Deal found 6/10$247
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Sun 8/1011:52 amPHX - GEG
1 stop9h 17mAlaska Airlines
Sun 8/317:00 amGEG - PHX
1 stop8h 18mAlaska Airlines
Deal found 6/10$248
This Delta deal was found by Cheapflights users on 6/11. 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 7/187:20 pmPHX - GEG
1 stop4h 44mDelta
Tue 7/223:38 pmGEG - PHX
1 stop6h 53mDelta
Deal found 6/11$257
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 7/307:05 amPHX - GEG
1 stop5h 23mHawaiian Airlines
Sun 8/310:11 amGEG - PHX
1 stop8h 45mHawaiian Airlines
Deal found 6/10$270

Cheapflights Fare Finder

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 June 12, 2025.
Use the filters below to find and compare flights from Phoenix to Idaho that are best for you.

Fly from

Phoenix

Fly to

Idaho

Route

Depart

Return

Price

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Thu 8/7

7:38 pm-10:45 pm

Nonstop2h 07m

Boise Air Term. Gowen Fld

Sat 8/9

6:07 pm-7:19 pm

Nonstop2h 12m

$159

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Mon 8/25

7:59 pm-11:07 pm

Nonstop2h 08m

Boise Air Term. Gowen Fld

Tue 8/26

6:05 pm-7:17 pm

Nonstop2h 12m

$161

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Tue 7/8

7:32 pm-12:09 am

1 stop3h 37m

Boise Air Term. Gowen Fld

Tue 7/15

7:30 am-12:30 pm

1 stop6h 00m

$177

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Wed 7/9

8:20 pm-11:33 pm

Nonstop2h 13m

Boise Air Term. Gowen Fld

Sat 7/12

5:17 pm-6:33 pm

Nonstop2h 16m

$179

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Tue 7/15

7:00 pm-12:25 am

1 stop4h 25m

Boise Air Term. Gowen Fld

Fri 7/18

5:05 pm-6:10 pm

Nonstop2h 05m

$198

PhoenixWest Yellowstone

PHX - WYS

PHXWYS

Phoenix Sky Harbor Intl

Tue 9/9

9:55 am-2:50 pm

1 stop3h 55m

West Yellowstone

Wed 9/17

3:28 pm-6:27 pm

1 stop3h 59m

$204

PhoenixBoise

AZA - BOI

AZABOI

Phoenix-Mesa Gateway

Fri 8/8

6:41 pm-9:43 pm

Nonstop2h 02m

Boise Air Term. Gowen Fld

Sat 8/9

2:29 pm-2:55 pm

2 stops25h 26m

$223

PhoenixSpokane

PHX - GEG

PHXGEG

Phoenix Sky Harbor Intl

Sat 7/5

8:23 pm-10:57 pm

Nonstop2h 34m

Spokane

Sat 7/12

6:57 am-9:34 am

Nonstop2h 37m

$246

PhoenixSpokane

PHX - GEG

PHXGEG

Phoenix Sky Harbor Intl

Fri 8/1

8:35 pm-11:10 pm

Nonstop2h 35m

Spokane

Mon 8/4

6:10 am-8:45 am

Nonstop2h 35m

$247

PhoenixSpokane

PHX - GEG

PHXGEG

Phoenix Sky Harbor Intl

Sun 8/10

11:52 am-9:09 pm

1 stop9h 17m

Spokane

Sun 8/31

7:00 am-3:18 pm

1 stop8h 18m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 60 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.

Cheapflights Insights

Everything you need to know about your flight from Phoenix to Idaho

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 $395). 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 June 12, 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 June 12, 2025.

The most flights from PH1 to USID are scheduled on a Tuesday (9 on average). You will have fewer flight options on Saturday, 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 June 12, 2025.
Read through reviews of airlines operating flights from Phoenix to Idaho, such as Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

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 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 Allegiant Air. According to our data, you can fly for as low as $50. Users have also found prices from $67 and $69 on Hawaiian Airlines and Southwest, respectively.

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

    The most popular route from Phoenix to Idaho is Phoenix Sky Harbor Intl - Spokane. You may also consider Phoenix Sky Harbor Intl - Boise Air Term. Gowen Fld 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 American Airlines (92%), Hawaiian Airlines (90%) or Envoy Air (89%) 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 $191, our data shows the cheapest flight currently is $82. When looking at the most popular route, (Phoenix Sky Harbor Intl - Spokane), you can expect to pay $196 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 $395). 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

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

Discover the top 8 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$78Average$167FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$92Average$172FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$136Average$217FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$146Average$355FlexibilityNo cancel feeOn-time75%
DeltaCheapest$156Average$445FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$158Average$428FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$170Average$264FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$196Average$413FlexibilityNo cancel feeOn-time69%

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