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$125+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOI
abr. 20 — abr. 271
dom. 4/20
dom. 4/27
1 adult, Economy
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Cheap flight deals from Philadelphia to Idaho

Keep the following information in mind while searching for Philadelphia to Idaho flight deals. Data was last updated abril 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$262
(Mytrip)

One-way from

$125
(Expedia)

Popular in

November

Cheapest in

September

Average price

$442
Provider with most accurate pricing for Philadelphia-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Boise Air Term. Gowen Fld flights.
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From Philadelphia to Idaho
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One-way flight from Philadelphia to Idaho
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Highest demand for flights based on searches. 14% potential increase in price ($89 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 abril 15, 2025.

This Mytrip deal was found by Cheapflights users on 4/14. 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.
lun. 6/27:45 amPHL - GEG
1 stop12h 28mMultiple Airlines
jue. 6/59:35 amGEG - PHL
1 stop17h 26mMultiple Airlines
Deal found 4/14$262
This Booking.com deal was found by Cheapflights users on 4/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/226:15 amPHL - BOI
1 stop7h 36mMultiple Airlines
lun. 5/2612:16 pmBOI - PHL
1 stop15h 45mMultiple Airlines
Deal found 4/14$279
This Booking.com deal was found by Cheapflights users on 4/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/226:15 amPHL - BOI
1 stop7h 36mFrontier
mar. 5/2712:36 pmBOI - PHL
1 stop14h 31mFrontier
Deal found 4/13$280
This Delta deal was found by Cheapflights users on 4/14. 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.
sáb. 5/243:00 pmPHL - GEG
1 stop7h 51mDelta
mar. 5/272:10 pmGEG - PHL
1 stop6h 48mDelta
Deal found 4/14$307
This Delta deal was found by Cheapflights users on 4/14. 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.
mié. 5/76:38 amPHL - BOI
1 stop7h 30mDelta
dom. 5/117:40 pmBOI - PHL
1 stop8h 10mDelta
Deal found 4/14$307
This American Airlines deal was found by Cheapflights users on 4/14. 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.
mié. 6/118:40 amPHL - GEG
1 stop7h 31mAmerican Airlines
mié. 6/181:51 pmGEG - PHL
1 stop7h 54mAmerican Airlines
Deal found 4/14$315
This Mytrip deal was found by Cheapflights users on 4/14. 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.
jue. 5/227:45 amPHL - BOI
2 stops29h 36mSpirit Airlines
lun. 5/2612:16 pmBOI - PHL
2 stops30h 09mSpirit Airlines
Deal found 4/14$315
This Alaska Airlines deal was found by Cheapflights users on 4/13. 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.
mar. 4/296:53 pmPHL - GEG
1 stop8h 06mAlaska Airlines
sáb. 5/37:27 pmGEG - PHL
1 stop7h 17mAlaska Airlines
Deal found 4/13$336
This American Airlines deal was found by Cheapflights users on 4/14. 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.
mar. 8/129:29 amPHL - BOI
1 stop9h 15mAmerican Airlines
sáb. 8/231:38 pmBOI - PHL
1 stop7h 22mAmerican Airlines
Deal found 4/14$343
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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.
mié. 10/87:25 amPHL - BOI
1 stop10h 55mAlaska Airlines
mar. 10/147:20 pmBOI - PHL
1 stop8h 41mAlaska Airlines
Deal found 4/14$381
This United Airlines deal was found by Cheapflights users on 4/14. 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.
mié. 10/812:50 pmPHL - BOI
2 stops10h 42mUnited Airlines
mar. 10/142:42 pmBOI - PHL
1 stop6h 24mUnited Airlines
Deal found 4/14$387
This Sun Country Air deal was found by Cheapflights users on 4/15. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/2411:10 amPHL - BOI
1 stop8h 46mSun Country Air
dom. 7/276:55 pmBOI - PHL
1 stop14h 15mSun Country Air
Deal found 4/15$405

Cheapflights Fare Finder

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 abril 15, 2025.
Use the filters below to find and compare flights from Philadelphia to Idaho that are best for you.

Fly from

Philadelphia

Fly to

Idaho

Route

Depart

Return

Price

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

lun. 6/2

7:45 am-5:13 pm

1 stop12h 28m

Spokane

jue. 6/5

9:35 am-6:01 am

1 stop17h 26m

$262

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

jue. 5/22

10:48 am-11:21 am

1 stop26h 33m

Boise Air Term. Gowen Fld

lun. 5/26

12:16 pm-8:25 pm

2 stops30h 09m

$279

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

jue. 5/22

6:15 am-11:51 am

1 stop7h 36m

Boise Air Term. Gowen Fld

mar. 5/27

12:36 pm-5:07 am

1 stop14h 31m

$280

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

dom. 5/4

10:08 pm-12:57 pm

1 stop16h 49m

Boise Air Term. Gowen Fld

sáb. 5/10

7:45 am-5:53 pm

1 stop8h 08m

$283

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

sáb. 5/24

3:00 pm-7:51 pm

1 stop7h 51m

Spokane

mar. 5/27

2:10 pm-11:58 pm

1 stop6h 48m

$307

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

mié. 5/7

6:38 am-12:08 pm

1 stop7h 30m

Boise Air Term. Gowen Fld

dom. 5/11

7:40 pm-5:50 am

1 stop8h 10m

$307

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

mié. 6/11

8:40 am-1:11 pm

1 stop7h 31m

Spokane

mié. 6/18

1:51 pm-12:45 am

1 stop7h 54m

$315

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

mar. 4/29

6:53 pm-11:59 pm

1 stop8h 06m

Spokane

sáb. 5/3

7:27 pm-5:44 am

1 stop7h 17m

$336

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

mié. 5/14

6:30 am-2:25 pm

2 stops9h 55m

Boise Air Term. Gowen Fld

mié. 5/21

11:45 am-11:05 pm

2 stops9h 20m

$398

PhiladelphiaIdaho Falls

PHL - IDA

PHLIDA

Philadelphia

vie. 6/6

11:55 am-6:10 pm

2 stops8h 15m

Idaho Falls Fanning Field

sáb. 6/7

6:50 pm-11:04 am

2 stops14h 14m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 43 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.

Cheapflights Insights

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

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 $419). 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 abril 15, 2025.

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 abril 15, 2025.
Peruse reviews from past customers who have flown with Alaska 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.
Alaska Airlines
8.0
Very good
9,871 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,871 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,279 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,918 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,375 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,658 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Crew

8.5

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 ($125), Delta ($154), and American Airlines ($200).

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

    While some choose either Philadelphia - Jackson Hole or Philadelphia - Boise Air Term. Gowen Fld, Philadelphia - Spokane 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 $419). 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 2,558,603 searches. Data last updated abril 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$160Average$312FlexibilityNo cancel feeOn-time65%
DeltaCheapest$312Average$637FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$346Average$581FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$362Average$435FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$372Average$692FlexibilityNo cancel feeOn-time69%

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