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$132+ Cheap flights from Philadelphia (PHL) 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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOI
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
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Cheap flight deals from Philadelphia to Idaho

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) 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 December 22, 2024.

Round-trip from

$240
(FlightHub)

One-way from

$132
(Cheapflightsfares)
From Philadelphia to Idaho
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One-way flight from Philadelphia to Idaho
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Find flight deals from Philadelphia to Idaho

Cheapest flights from Philadelphia to Idaho
Explore the most affordable flight options available from Philadelphia to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 22, 2024.

This Delta deal was found by Cheapflights users on 12/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/317:08 amPHL - JAC
1 stop8h 01mDelta
Sun 1/261:10 pmJAC - PHL
1 stop8h 45mDelta
Deal found 12/21$435
This United Airlines deal was found by Cheapflights users on 12/21. 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 12/316:35 amPHL - JAC
2 stops12h 34mUnited Airlines
Mon 1/274:20 pmJAC - PHL
2 stops23h 15mUnited Airlines
Deal found 12/21$588
This Delta deal was found by Cheapflights users on 12/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:58 pmPHL - BOI
1 stop7h 50mDelta
Sat 1/47:55 pmBOI - PHL
1 stop7h 52mDelta
Deal found 12/21$597
This United deal was found by Cheapflights users on 12/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:35 amPHL - SUN
1 stop7h 22mUnited Airlines
Tue 1/72:25 pmSUN - PHL
1 stop6h 59mUnited Airlines
Deal found 12/21$619
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/267:00 amPHL - BOI
1 stop11h 19mAlaska Airlines
Wed 1/17:00 amBOI - PHL
1 stop8h 41mAlaska Airlines
Deal found 12/21$636
This Southwest deal was found by Cheapflights users on 12/21. 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.
Mon 12/307:25 pmPHL - BOI
1 stop7h 20mSouthwest
Wed 1/17:00 amBOI - PHL
2 stops12h 05mSouthwest
Deal found 12/21$667
This Delta deal was found by Cheapflights users on 12/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/312:45 pmPHL - SUN
2 stops9h 38mDelta
Tue 1/73:35 pmSUN - PHL
1 stop6h 20mDelta
Deal found 12/21$695
This United deal was found by Cheapflights users on 12/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2210:00 amPHL - BOI
2 stops14h 13mUnited Airlines
Sat 12/286:30 amBOI - PHL
1 stop8h 50mUnited Airlines
Deal found 12/21$792
This American Airlines deal was found by Cheapflights users on 12/22. 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 12/286:40 pmPHL - JAC
1 stop20h 13mAmerican Airlines
Wed 1/13:23 pmJAC - PHL
1 stop7h 32mAmerican Airlines
Deal found 12/22$1,465
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/317:00 amPHL - JAC
3 stops31h 53mAlaska Airlines
Mon 1/2712:39 pmJAC - PHL
2 stops26h 53mAlaska Airlines
Deal found 12/21$1,534
This Mytrip deal was found by Cheapflights users on 12/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/222:45 pmPHL - BOI
2 stops22h 17mMultiple Airlines
Sun 12/291:50 pmBOI - PHL
3 stops19h 50mMultiple Airlines
Deal found 12/21$1,680

Find flights from Philadelphia to Idaho within your budget

Customize your flight search to find flights from Philadelphia 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 December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Thu 1/23

6:15 am-6:43 pm

1 stop14h 28m

Boise Air Term. Gowen Fld

Sun 1/26

7:33 pm-11:40 pm

1 stop26h 07m

$240

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Tue 2/25

3:21 pm-8:38 pm

1 stop8h 17m

Spokane

Tue 3/4

1:46 pm-11:21 pm

1 stop6h 35m

$336

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Wed 1/8

3:40 pm-9:43 pm

1 stop8h 03m

Boise Air Term. Gowen Fld

Tue 1/14

2:32 pm-11:24 pm

1 stop6h 52m

$336

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Tue 2/25

6:00 am-1:15 pm

2 stops10h 15m

Spokane

Tue 3/4

2:10 pm-11:53 pm

1 stop6h 43m

$341

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Wed 1/8

1:11 pm-12:18 am

2 stops13h 07m

Boise Air Term. Gowen Fld

Wed 1/15

7:30 pm-11:40 am

2 stops14h 10m

$346

PhiladelphiaJackson

PHL - JAC

PHLJAC

Philadelphia

Sat 1/11

7:05 am-1:18 pm

1 stop8h 13m

Jackson Hole

Wed 1/15

1:10 pm-11:55 pm

1 stop8h 45m

$354

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Thu 1/23

7:00 am-1:49 pm

1 stop9h 49m

Spokane

Sat 1/25

3:21 pm-7:37 am

2 stops13h 16m

$361

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Wed 1/29

6:32 pm-9:57 am

1 stop17h 25m

Boise Air Term. Gowen Fld

Sun 2/2

9:30 am-5:32 pm

1 stop30h 02m

$376

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Wed 1/29

1:50 pm-9:52 pm

2 stops10h 02m

Boise Air Term. Gowen Fld

Sun 2/2

6:39 am-4:05 pm

1 stop7h 26m

$381

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Thu 1/23

6:15 am-6:43 pm

1 stop14h 28m

Boise Air Term. Gowen Fld

Sun 1/26

9:30 am-11:59 pm

2 stops12h 29m

$388

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 37 results
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Best time to book a flight from Philadelphia to Idaho

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

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

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

Currently, October is the cheapest month in which you can book a flight from Philadelphia to Idaho (average of $314). Flying from Philadelphia 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 PHL to ID?

Find hourly flight availability from Philadelphia 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 December 22, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to Idaho as you normally would.

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 December 22, 2024.
Peruse reviews from past customers who have flown with Delta, Alaska Airlines and United Airlines from Philadelphia to Idaho to help guide your decision. 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
4,804 reviews

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

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
4,804 reviews
Southwest
8.1
Very good
4,804 reviews

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

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
9,537 reviews
Southwest
8.1
Very good
4,804 reviews

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

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
8,597 reviews
Southwest
8.1
Very good
4,804 reviews

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

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
9,028 reviews
Southwest
8.1
Very good
4,804 reviews

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

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.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,804 reviews

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

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 Philadelphia to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Philadelphia to Idaho?

    Philadelphia (PHL) is the airport you will fly out of if you book a flight from Philadelphia to Idaho. It is only a 7.0 mi journey to Philadelphia (PHL) from Philadelphia’s city center.

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

    The cheapest airlines for a one-way flight from Philadelphia to Idaho are Spirit Airlines ($132), American Airlines ($168), and Delta ($193).

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

    While some choose either Philadelphia - Boise Air Term. Gowen Fld or Philadelphia - Spokane, Philadelphia - Jackson Hole is the most popular route from Philadelphia to Idaho.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Philadelphia to Idaho (average of $314). Flying from Philadelphia 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.

See more FAQs

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Alternative routes for Philadelphia to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Philadelphia to Idaho

Discover the top 5 airlines that operate flights from Philadelphia 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 December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$196Average$277FlexibilityNo cancel feeOn-time65%
DeltaCheapest$298Average$674FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$337Average$717FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$341Average$416FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$363Average$587FlexibilityNo cancel feeOn-time71%
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