HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho

$68+ Cheap flights from Sky Harbor Intl (PHX) 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sky Harbor Intl to Idaho with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Sky Harbor Intl to Idaho

Keep the following information in mind while searching for Sky Harbor Intl to Idaho flight deals. Data was last updated March 26, 2025.

Round-trip from

$177
(Southwest)

One-way from

$68
(Mytrip)

Popular in

March

Cheapest in

September

Average price

$344

Good round-trip deal

$198 or less

Good one-way deal

$153 or less
From Phoenix Sky Harbor Intl to Idaho
Search Deals
One-way flight from Phoenix Sky Harbor Intl to Idaho
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($18 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 March 2025
Search Deals
Price to beat on a round-trip flight from Phoenix Sky Harbor Intl to Idaho.
Search Deals
Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Idaho.
Search Deals

Find flight deals from Sky Harbor Intl to Idaho

Cheapest flights from Sky Harbor Intl to Idaho
Explore the most affordable flight options available from Sky Harbor Intl to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 26, 2025.

This Southwest deal was found by Cheapflights users on 3/24. 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 4/219:50 pmPHX - BOI
Nonstop2h 00mSouthwest
Mon 4/285:00 pmBOI - PHX
Nonstop2h 05mSouthwest
Deal found 3/24$177
This American Airlines deal was found by Cheapflights users on 3/24. 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 4/198:22 pmPHX - BOI
Nonstop2h 12mAmerican Airlines
Sun 4/206:37 amBOI - PHX
Nonstop2h 10mAmerican Airlines
Deal found 3/24$178
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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 4/187:31 pmPHX - BOI
Nonstop2h 09mAlaska Airlines
Sat 4/198:18 amBOI - PHX
Nonstop2h 09mAlaska Airlines
Deal found 3/24$187
This Hawaiian Airlines deal was found by Cheapflights users on 3/25. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/66:00 amPHX - BOI
1 stop8h 04mHawaiian Airlines
Tue 8/195:44 pmBOI - PHX
Nonstop2h 12mHawaiian Airlines
Deal found 3/25$189
This Delta deal was found by Cheapflights users on 3/23. 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.
Sat 7/1910:05 amPHX - BOI
1 stop5h 44mDelta
Tue 7/228:40 amBOI - PHX
1 stop5h 20mDelta
Deal found 3/23$199
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/161:22 pmPHX - GEG
1 stop7h 39mAlaska Airlines
Sat 4/195:06 amGEG - PHX
1 stop7h 20mAlaska Airlines
Deal found 3/25$209
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1610:55 amPHX - GEG
Nonstop2h 43mAmerican Airlines
Sat 4/193:21 pmGEG - PHX
Nonstop2h 35mAmerican Airlines
Deal found 3/25$220
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/156:10 amPHX - GEG
1 stop5h 32mDelta
Tue 4/155:05 pmGEG - PHX
1 stop6h 54mDelta
Deal found 3/25$233
This Southwest deal was found by Cheapflights users on 3/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/47:45 amPHX - GEG
1 stop9h 25mSouthwest
Sat 7/56:05 amGEG - PHX
Nonstop2h 35mSouthwest
Deal found 3/25$235
This Mytrip deal was found by Cheapflights users on 3/24. 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.
Thu 4/102:34 pmPHX - BOI
1 stop21h 23mMultiple Airlines
Sun 4/1311:14 amBOI - PHX
2 stops27h 14mMultiple Airlines
Deal found 3/24$262
This United Airlines deal was found by Cheapflights users on 3/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/253:29 pmPHX - BOI
1 stop6h 34mUnited Airlines
Thu 5/17:10 pmBOI - PHX
1 stop5h 17mUnited Airlines
Deal found 3/25$268
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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 4/228:51 pmPHX - IDA
1 stop18h 07mAlaska Airlines
Tue 4/296:00 amIDA - PHX
1 stop7h 54mAlaska Airlines
Deal found 3/26$269

Cheapflights Fare Finder

Customize your flight search to find flights from Sky Harbor Intl 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 March 26, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Idaho that are best for you.

Fly from

Sky Harbor Intl

Fly to

Idaho

Route

Depart

Return

Price

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Mon 4/21

9:50 pm-12:50 am

Nonstop2h 00m

Boise Air Term. Gowen Fld

Mon 4/28

5:00 pm-6:05 pm

Nonstop2h 05m

$177

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Sat 4/19

8:22 pm-11:34 pm

Nonstop2h 12m

Boise Air Term. Gowen Fld

Sun 4/20

6:37 am-7:47 am

Nonstop2h 10m

$178

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Fri 4/18

7:31 pm-10:40 pm

Nonstop2h 09m

Boise Air Term. Gowen Fld

Sat 4/19

8:18 am-9:27 am

Nonstop2h 09m

$187

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Fri 4/18

6:00 am-12:44 pm

1 stop5h 44m

Boise Air Term. Gowen Fld

Sun 4/20

5:00 am-10:54 am

1 stop6h 54m

$198

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Fri 5/30

3:41 pm-10:19 pm

1 stop5h 38m

Boise Air Term. Gowen Fld

Mon 6/9

4:17 pm-10:29 pm

1 stop7h 12m

$207

PhoenixSpokane

PHX - GEG

PHXGEG

Phoenix Sky Harbor Intl

Wed 4/16

1:22 pm-9:01 pm

1 stop7h 39m

Spokane

Sat 4/19

5:06 am-12:26 pm

1 stop7h 20m

$209

PhoenixSpokane

PHX - GEG

PHXGEG

Phoenix Sky Harbor Intl

Wed 4/16

10:55 am-1:38 pm

Nonstop2h 43m

Spokane

Sat 4/19

3:21 pm-5:56 pm

Nonstop2h 35m

$220

PhoenixBoise

PHX - BOI

PHXBOI

Phoenix Sky Harbor Intl

Tue 4/15

6:00 am-1:09 pm

1 stop6h 09m

Boise Air Term. Gowen Fld

Fri 4/18

5:44 pm-6:51 pm

Nonstop2h 07m

$227

PhoenixSpokane

PHX - GEG

PHXGEG

Phoenix Sky Harbor Intl

Tue 4/15

6:10 am-11:42 am

1 stop5h 32m

Spokane

Tue 4/15

5:05 pm-11:59 pm

1 stop6h 54m

$233

PhoenixSpokane

PHX - GEG

PHXGEG

Phoenix Sky Harbor Intl

Fri 5/30

6:05 pm-11:00 pm

1 stop4h 55m

Spokane

Tue 6/3

7:20 am-9:55 am

Nonstop2h 35m

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Sky Harbor Intl to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Sky Harbor Intl 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 Sky Harbor Intl Airport to Idaho

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Idaho?

Currently, October is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Idaho (average of $314). Flying from Phoenix Sky Harbor Intl Airport to Idaho in June is currently the most expensive (average of $421). 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 Sky Harbor Intl 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 March 26, 2025.

When flying from Phoenix Sky Harbor Intl Airport 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.

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 March 26, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Phoenix to Idaho have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,789 reviews
Southwest
8.1
Very good
4,273 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,891 reviews
Southwest
8.1
Very good
4,273 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Hawaiian Airlines
7.9
Good
2,331 reviews
Southwest
8.1
Very good
4,273 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,608 reviews
Southwest
8.1
Very good
4,273 reviews

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Crew

8.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl 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 Sky Harbor Intl Airport to Idaho one-way?

    $68 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on Hawaiian Airlines and Southwest, with prices starting from $89 and $90, respectively.

  • What are the most popular routes from Phoenix Sky Harbor Intl Airport to Idaho?

    Most travelers choose Phoenix Sky Harbor Intl - Spokane, Phoenix Sky Harbor Intl - Boise Air Term. Gowen Fld or Phoenix Sky Harbor Intl - Jackson Hole when deciding on the best route from Phoenix Sky Harbor Intl Airport to Idaho.

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Idaho?

    The top 3 most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Idaho are Southwest (86%), Envoy Air (84%) and American Airlines (80%).

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Idaho?

    The cheapest flight price from Phoenix Sky Harbor Intl Airport to Idaho is $88. On average you can expect to pay $458. The most popular route, (Phoenix Sky Harbor Intl - Spokane), can usually be booked for $235.

  • Can I find deals for flights from Sky Harbor Intl to Idaho that include hotel bookings?

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

  • How can I find direct flights from Sky Harbor Intl to Idaho?

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

  • Can I find deals for business class flights from Sky Harbor Intl to Idaho?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl 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 Sky Harbor Intl Airport to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Idaho (average of $314). Flying from Phoenix Sky Harbor Intl Airport to Idaho in June is currently the most expensive (average of $421). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sky Harbor Intl to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
Sky Harbor Intl to Seattle flights
Sky Harbor Intl to Newark flights
Sky Harbor Intl to Honolulu flights
Sky Harbor Intl to John F Kennedy Intl flights
Sky Harbor Intl to O'Hare Intl flights
Sky Harbor Intl to Denver flights
Sky Harbor Intl to Los Angeles flights
Sky Harbor Intl to Las Vegas flights
Sky Harbor Intl to LaGuardia flights
Sky Harbor Intl to Orlando flights
Sky Harbor Intl to Portland flights
Sky Harbor Intl to Miami flights
Sky Harbor Intl to Detroit flights
Sky Harbor Intl to San Francisco flights
Sky Harbor Intl to Atlanta flights
Sky Harbor Intl to Dulles Intl flights
Sky Harbor Intl to Dallas/Fort Worth flights
Sky Harbor Intl to Boston flights
Sky Harbor Intl to Hobby flights
Sky Harbor Intl to Nashville flights
Sky Harbor Intl to Salt Lake City flights
Sky Harbor Intl to Minneapolis flights
Sky Harbor Intl to George Bush Intcntl flights
Sky Harbor Intl to San Diego flights
Sky Harbor Intl to Kahului flights
Sky Harbor Intl to Reagan-National flights
Sky Harbor Intl to Everett flights
Sky Harbor Intl to Baltimore flights
Sky Harbor Intl to Tampa flights
Sky Harbor Intl to Austin flights
Sky Harbor Intl to Fort Lauderdale flights
Sky Harbor Intl to Midway flights
Sky Harbor Intl to Oakland flights
Sky Harbor Intl to New Orleans flights
Sky Harbor Intl to Philadelphia flights
Sky Harbor Intl to Santa Ana flights
Sky Harbor Intl to Lihue flights
Sky Harbor Intl to Sacramento flights
Sky Harbor Intl to San Jose flights
Sky Harbor Intl to Charlotte flights
Sky Harbor Intl to Raleigh flights
Sky Harbor Intl to Kansas City flights
Sky Harbor Intl to St. Louis flights
Sky Harbor Intl to Cleveland flights
Sky Harbor Intl to Anchorage flights
Sky Harbor Intl to Reno flights
Sky Harbor Intl to Kailua-Kona flights
Sky Harbor Intl to Milwaukee flights
Sky Harbor Intl to Love Field flights
Sky Harbor Intl to Ontario flights

Top 7 airlines flying from Sky Harbor Intl to Idaho

Discover the top 7 airlines that operate flights from Sky Harbor Intl 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$78Average$134FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$92Average$167FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$153Average$365FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$164Average$401FlexibilityNo cancel feeOn-time71%
DeltaCheapest$168Average$462FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$169Average$260FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$196Average$499FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.