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$97+ Cheap flights from Idaho to Philadelphia (PHL)

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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PHL
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Idaho to Philadelphia

Keep the following information in mind while searching for Idaho to Philadelphia flight deals. Data was last updated April 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$218
(Frontier)

One-way from

$97
(Cheapflightsfares)

Popular in

October

Cheapest in

January

Average price

$462
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Philadelphia flights.
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From Idaho to Philadelphia
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One-way flight from Idaho to Philadelphia
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Highest demand for flights based on searches. 3% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 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 Idaho to Philadelphia

Cheapest flights from Idaho to Philadelphia
Explore the most affordable flight options available from Idaho to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Frontier deal was found by Cheapflights users on 4/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2911:49 amGEG - PHL
1 stop7h 16mFrontier
Sun 6/16:15 amPHL - GEG
1 stop7h 48mFrontier
Deal found 4/17$218
This Mytrip deal was found by Cheapflights users on 4/17. 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 5/236:03 pmGEG - PHL
1 stop23h 22mMultiple Airlines
Mon 5/267:45 amPHL - GEG
1 stop12h 28mMultiple Airlines
Deal found 4/17$304
This American Airlines deal was found by Cheapflights users on 4/17. 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 5/77:14 amBOI - PHL
1 stop8h 29mAmerican Airlines
Sat 5/101:55 pmPHL - BOI
1 stop10h 14mAmerican Airlines
Deal found 4/17$307
This Delta deal was found by Cheapflights users on 4/16. 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 6/247:05 pmGEG - PHL
1 stop7h 45mDelta
Tue 7/17:05 pmPHL - GEG
1 stop7h 06mDelta
Deal found 4/16$315
This Delta deal was found by Cheapflights users on 4/16. 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 5/78:46 amBOI - PHL
2 stops13h 12mDelta
Sat 5/106:00 amPHL - BOI
2 stops9h 46mDelta
Deal found 4/16$317
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Thu 8/71:39 pmGEG - PHL
1 stop7h 20mAmerican Airlines
Sat 8/161:26 pmPHL - GEG
1 stop10h 01mAmerican Airlines
Deal found 4/17$333
This Sun Country Air deal was found by Cheapflights users on 4/16. 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.
Thu 7/106:47 pmGEG - PHL
1 stop13h 23mSun Country Air
Sun 7/207:00 amPHL - GEG
1 stop12h 11mSun Country Air
Deal found 4/16$380
This Delta deal was found by Cheapflights users on 4/17. 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.
Thu 5/296:50 pmJAC - PHL
1 stop9h 00mDelta
Tue 6/311:55 amPHL - JAC
2 stops10h 53mDelta
Deal found 4/17$381
This Southwest deal was found by Cheapflights users on 4/16. 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.
Thu 7/246:00 amBOI - PHL
2 stops10h 25mSouthwest
Tue 7/294:45 pmPHL - BOI
2 stops9h 40mSouthwest
Deal found 4/16$390
This Hawaiian Airlines deal was found by Cheapflights users on 4/17. 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.
Sat 11/17:20 pmGEG - PHL
1 stop7h 41mHawaiian Airlines
Sat 11/87:25 amPHL - GEG
1 stop8h 25mHawaiian Airlines
Deal found 4/17$392
This American Airlines deal was found by Cheapflights users on 4/17. 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 11/125:37 amIDA - PHL
1 stop7h 04mAmerican Airlines
Mon 11/173:40 pmPHL - IDA
1 stop8h 21mAmerican Airlines
Deal found 4/17$399
This Delta deal was found by Cheapflights users on 4/17. 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 11/117:00 pmIDA - PHL
1 stop8h 46mDelta
Sat 11/1510:21 amPHL - IDA
2 stops13h 59mDelta
Deal found 4/17$404

Cheapflights Fare Finder

Customize your flight search to find flights from Idaho to Philadelphia 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 April 17, 2025.
Use the filters below to find and compare flights from Idaho to Philadelphia that are best for you.

Fly from

Idaho

Fly to

Philadelphia

Route

Depart

Return

Price

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Thu 5/29

11:49 am-10:05 pm

1 stop7h 16m

Philadelphia

Sun 6/1

6:15 am-11:03 am

1 stop7h 48m

$218

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Fri 5/23

6:03 pm-8:25 pm

1 stop23h 22m

Philadelphia

Mon 5/26

7:45 am-5:13 pm

1 stop12h 28m

$304

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Wed 5/7

7:14 am-5:43 pm

1 stop8h 29m

Philadelphia

Sat 5/10

1:55 pm-10:09 pm

1 stop10h 14m

$307

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Tue 6/24

7:05 pm-5:50 am

1 stop7h 45m

Philadelphia

Tue 7/1

7:05 pm-11:11 pm

1 stop7h 06m

$315

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Wed 5/7

8:46 am-11:58 pm

2 stops13h 12m

Philadelphia

Sat 5/10

6:00 am-1:46 pm

2 stops9h 46m

$317

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Thu 8/7

1:39 pm-11:59 pm

1 stop7h 20m

Philadelphia

Sat 8/16

1:26 pm-8:27 pm

1 stop10h 01m

$333

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Thu 7/10

6:47 pm-11:10 am

1 stop13h 23m

Philadelphia

Sun 7/20

7:00 am-4:11 pm

1 stop12h 11m

$380

JacksonPhiladelphia

JAC - PHL

JACPHL

Jackson Hole

Thu 5/29

6:50 pm-5:50 am

1 stop9h 00m

Philadelphia

Tue 6/3

11:55 am-8:48 pm

2 stops10h 53m

$381

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Thu 7/24

6:00 am-6:25 pm

2 stops10h 25m

Philadelphia

Tue 7/29

4:45 pm-12:25 am

2 stops9h 40m

$390

SpokanePhiladelphia

GEG - PHL

GEGPHL

Spokane

Fri 7/11

5:00 am-6:25 pm

1 stop10h 25m

Philadelphia

Sun 7/20

7:25 pm-12:10 am

1 stop7h 45m

$410

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

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

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

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

Currently, August is the cheapest month in which you can book a flight from Idaho to Philadelphia (average of $236). Flying from Idaho to Philadelphia in March is currently the most expensive (average of $295). 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 ID to PHL?

Find hourly flight availability from Idaho to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

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

Rainfall in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Philadelphia ranges from 2.7 - 4.4 inches per month. July is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Philadelphia when rainfall is around 2.7 in.

Temperature in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Philadelphia, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated April 17, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Idaho to Philadelphia. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

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
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

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
4,280 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

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
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

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
2,380 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

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
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

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 Idaho to Philadelphia. 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 into for flights to Philadelphia from Idaho?

    If you book a flight to Philadelphia from Idaho, you will be flying to Philadelphia, which is the city’s only airport. Philadelphia (PHL) is located 7.0 mi from the center of Philadelphia.

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

    $97 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $154 and $159, respectively.

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

    The most popular route from Idaho to Philadelphia is Spokane - Philadelphia. You may also consider Boise Air Term. Gowen Fld - Philadelphia or Jackson Hole - Philadelphia.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Idaho to Philadelphia (average of $236). Flying from Idaho to Philadelphia in March is currently the most expensive (average of $295). 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

Traveling to a place near Idaho?

Book flights to Idaho if you plan to visit one of these locations
Vineland
Pottstown
Wildwood
King of Prussia
Reading
Cherry Hill
Exton
Ocean City
Essington
Chester
Middletown
Willow Grove
Newark
Millville
Ephrata
Camden
Dewey Beach
West Chester
Malvern
Dover

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Alternative routes for Idaho to Philadelphia

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Top 4 airlines flying from Idaho to Philadelphia

Discover the top 4 airlines that operate flights from Idaho to Philadelphia. 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$310Average$433FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$356Average$564FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$367Average$505FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$371Average$675FlexibilityNo cancel feeOn-time69%

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