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$101+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOI
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
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 febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$229
(FlightHub)

One-way from

$103
(FlightHub)

Popular in

November

Cheapest in

April

Average price

$529
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 ($86 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in February 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 febrero 20, 2025.

This FlightHub deal was found by Cheapflights users on 2/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/2210:08 pmPHL - BOI
1 stop17h 31mSpirit Airlines
mié. 4/302:34 pmBOI - PHL
1 stop13h 18mSpirit Airlines
Deal found 2/19$169
This Delta deal was found by Cheapflights users on 2/19. 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.
mié. 4/97:05 amPHL - BOI
1 stop7h 39mDelta
sáb. 4/123:00 pmBOI - PHL
1 stop6h 44mDelta
Deal found 2/19$271
This Mytrip deal was found by Cheapflights users on 2/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/197:20 pmPHL - BOI
3 stops43h 16mMultiple Airlines
mié. 3/261:31 pmBOI - PHL
1 stop14h 34mMultiple Airlines
Deal found 2/19$314
This American Airlines deal was found by Cheapflights users on 2/19. 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.
mié. 3/193:56 pmPHL - BOI
1 stop7h 59mAmerican Airlines
mié. 3/265:15 pmBOI - PHL
1 stop10h 06mAmerican Airlines
Deal found 2/19$347
This Delta deal was found by Cheapflights users on 2/19. 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.
vie. 3/287:05 amPHL - GEG
1 stop7h 50mDelta
mar. 4/16:56 pmGEG - PHL
2 stops11h 25mDelta
Deal found 2/19$363
This Sun Country Air deal was found by Cheapflights users on 2/20. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/612:05 pmPHL - GEG
1 stop7h 00mSun Country Air
dom. 7/135:05 pmGEG - PHL
1 stop15h 05mSun Country Air
Deal found 2/20$380
This United Airlines deal was found by Cheapflights users on 2/19. 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.
mar. 4/2210:43 amPHL - BOI
2 stops13h 00mUnited Airlines
mié. 4/302:00 pmBOI - PHL
2 stops13h 35mUnited Airlines
Deal found 2/19$381
This American Airlines deal was found by Cheapflights users on 2/19. 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.
vie. 3/285:05 pmPHL - GEG
1 stop8h 59mAmerican Airlines
mar. 4/16:32 amGEG - PHL
1 stop8h 03mAmerican Airlines
Deal found 2/19$386
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/97:25 amPHL - BOI
1 stop8h 20mAlaska Airlines
mar. 10/147:20 pmBOI - PHL
1 stop8h 41mAlaska Airlines
Deal found 2/19$416
This Southwest deal was found by Cheapflights users on 2/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/105:35 pmPHL - GEG
1 stop8h 30mSouthwest
mar. 6/1710:00 amGEG - PHL
2 stops9h 50mSouthwest
Deal found 2/18$420
This Delta deal was found by Cheapflights users on 2/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/196:00 amPHL - JAC
1 stop9h 12mDelta
mié. 3/262:24 pmJAC - PHL
1 stop8h 21mDelta
Deal found 2/18$421
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/168:28 amPHL - IDA
2 stops10h 49mUnited Airlines
sáb. 8/2310:45 amIDA - PHL
2 stops11h 47mUnited Airlines
Deal found 2/20$423

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 febrero 20, 2025.

Fly from

Philadelphia

Fly to

Idaho

Route

Depart

Return

Price

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

mar. 4/22

10:08 pm-1:39 pm

1 stop17h 31m

Boise Air Term. Gowen Fld

mié. 4/30

2:34 pm-5:52 am

1 stop13h 18m

$169

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

mié. 4/9

7:05 am-12:44 pm

1 stop7h 39m

Boise Air Term. Gowen Fld

sáb. 4/12

3:00 pm-11:44 pm

1 stop6h 44m

$271

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

mié. 4/16

9:31 am-5:52 pm

2 stops10h 21m

Boise Air Term. Gowen Fld

mié. 4/23

7:00 pm-5:35 am

1 stop8h 35m

$277

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

mié. 3/19

7:20 pm-12:36 pm

3 stops43h 16m

Boise Air Term. Gowen Fld

mié. 3/26

1:31 pm-6:05 am

1 stop14h 34m

$314

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

mié. 3/19

3:56 pm-9:55 pm

1 stop7h 59m

Boise Air Term. Gowen Fld

mié. 3/26

5:15 pm-5:21 am

1 stop10h 06m

$347

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

vie. 3/28

7:05 am-11:55 am

1 stop7h 50m

Spokane

mar. 4/1

6:56 pm-9:21 am

2 stops11h 25m

$363

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

dom. 7/6

12:05 pm-4:05 pm

1 stop7h 00m

Spokane

dom. 7/13

5:05 pm-11:10 am

1 stop15h 05m

$380

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

vie. 3/28

5:05 pm-11:04 pm

1 stop8h 59m

Spokane

mar. 4/1

6:32 am-5:35 pm

1 stop8h 03m

$386

PhiladelphiaSpokane

PHL - GEG

PHLGEG

Philadelphia

mar. 6/10

5:35 pm-11:05 pm

1 stop8h 30m

Spokane

mar. 6/17

10:00 am-10:50 pm

2 stops9h 50m

$420

PhiladelphiaJackson

PHL - JAC

PHLJAC

Philadelphia

mié. 3/19

6:00 am-1:12 pm

1 stop9h 12m

Jackson Hole

mié. 3/26

2:24 pm-12:45 am

1 stop8h 21m

$421

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 41 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 febrero 20, 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 febrero 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines 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
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 ($103), American Airlines ($162), and Delta ($197).

  • 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 $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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$210Average$302FlexibilityNo cancel feeOn-time65%
DeltaCheapest$298Average$649FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$341Average$416FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$348Average$598FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$359Average$689FlexibilityNo cancel feeOn-time69%
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