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$154+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOI
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
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 November 20, 2024.

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 November 20, 2024.

This CheapOair deal was found by Cheapflights users on 11/18. 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.
Tue 12/177:15 amPHL - BOI
1 stop9h 35mSpirit Airlines
Mon 12/2311:57 amBOI - PHL
1 stop23h 48mSpirit Airlines
Deal found 11/18$217
This Mytrip deal was found by Cheapflights users on 11/18. 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.
Mon 12/168:27 pmPHL - BOI
2 stops20h 23mMultiple Airlines
Sun 12/228:03 pmBOI - PHL
1 stop15h 42mMultiple Airlines
Deal found 11/18$318
This Delta deal was found by Cheapflights users on 11/20. 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 12/115:30 amPHL - GEG
1 stop9h 12mDelta
Mon 12/166:05 amGEG - PHL
1 stop8h 29mDelta
Deal found 11/20$343
This Delta deal was found by Cheapflights users on 11/19. 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 12/242:45 pmPHL - BOI
2 stops10h 25mDelta
Wed 1/85:30 amBOI - PHL
1 stop6h 14mDelta
Deal found 11/19$356
This American Airlines deal was found by Cheapflights users on 11/19. 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 12/1110:45 amPHL - GEG
1 stop11h 54mAmerican Airlines
Mon 12/163:21 pmGEG - PHL
1 stop11h 05mAmerican Airlines
Deal found 11/19$366
This Southwest deal was found by Cheapflights users on 11/19. 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 12/612:55 pmPHL - GEG
2 stops12h 15mSouthwest
Tue 12/107:20 amGEG - PHL
2 stops10h 55mSouthwest
Deal found 11/19$421
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Wed 12/113:40 pmPHL - JAC
1 stop7h 39mUnited Airlines
Mon 12/1612:45 pmJAC - PHL
1 stop6h 40mUnited Airlines
Deal found 11/19$430
This Southwest deal was found by Cheapflights users on 11/19. 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 12/303:30 pmPHL - BOI
2 stops11h 15mSouthwest
Fri 1/1011:50 amBOI - PHL
1 stop9h 25mSouthwest
Deal found 11/19$471
This Mytrip deal was found by Cheapflights users on 11/18. 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.
Wed 12/182:40 pmPHL - GEG
2 stops21h 01mMultiple Airlines
Mon 12/239:38 amGEG - PHL
3 stops35h 27mMultiple Airlines
Deal found 11/18$491
This American Airlines deal was found by Cheapflights users on 11/19. 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 12/115:00 amPHL - JAC
1 stop9h 48mAmerican Airlines
Mon 12/161:35 pmJAC - PHL
1 stop9h 21mAmerican Airlines
Deal found 11/19$501
This United deal was found by Cheapflights users on 11/19. 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 11/19$501
This Delta deal was found by Cheapflights users on 11/20. 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 12/116:00 amPHL - JAC
2 stops12h 45mDelta
Mon 12/166:50 amJAC - PHL
1 stop8h 44mDelta
Deal found 11/20$502

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 2,629,791 searches. Data last updated November 20, 2024.

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Route

Depart

Return

Price

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Tue 12/17

7:15 am-2:50 pm

1 stop9h 35m

Boise Air Term. Gowen Fld

Mon 12/23

11:57 am-1:45 pm

1 stop23h 48m

$217

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Mon 12/16

8:27 pm-2:50 pm

2 stops20h 23m

Boise Air Term. Gowen Fld

Sun 12/22

8:03 pm-1:45 pm

1 stop15h 42m

$318

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Tue 12/24

2:45 pm-11:10 pm

2 stops10h 25m

Boise Air Term. Gowen Fld

Sat 1/11

1:35 pm-10:52 pm

1 stop7h 17m

$356

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Fri 1/17

6:32 pm-11:53 pm

1 stop8h 21m

Spokane

Sun 1/26

5:48 pm-5:32 pm

1 stop20h 44m

$360

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Fri 1/17

6:00 am-1:04 pm

1 stop10h 04m

Spokane

Sun 1/26

6:00 am-6:32 pm

2 stops9h 32m

$365

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Wed 12/11

10:45 am-7:39 pm

1 stop11h 54m

Spokane

Mon 12/16

3:21 pm-5:26 am

1 stop11h 05m

$366

PhiladelphiaJackson

PHL - JAC

PHLJAC

Philadelphia

Sat 1/11

6:55 am-12:15 pm

1 stop7h 20m

Jackson Hole

Wed 1/15

1:10 pm-11:55 pm

1 stop8h 45m

$384

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Thu 2/20

6:25 pm-10:24 am

1 stop17h 59m

Boise Air Term. Gowen Fld

Mon 2/24

8:59 pm-5:25 pm

1 stop18h 26m

$406

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Sat 3/1

6:35 am-5:30 pm

2 stops12h 55m

Boise Air Term. Gowen Fld

Sat 3/8

5:00 am-7:00 pm

2 stops12h 00m

$418

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

Fri 12/6

12:55 pm-10:10 pm

2 stops12h 15m

Spokane

Tue 12/10

7:20 am-9:15 pm

2 stops10h 55m

$421

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 34 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, January is the cheapest month in which you can book a flight from Philadelphia to Idaho (average of $310). 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 November 20, 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 November 20, 2024.
Peruse reviews from past customers who have flown with Spirit Airlines, Southwest and Delta 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
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

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 ($154), American Airlines ($173), and Delta ($177).

  • 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, January is the cheapest month in which you can book a flight from Philadelphia to Idaho (average of $310). 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

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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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$196Average$294FlexibilityNo cancel feeOn-time65%
DeltaCheapest$321Average$668FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$337Average$705FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$341Average$393FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$346Average$583FlexibilityNo cancel feeOn-time71%
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