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$108+ Cheap flights from Boise to Philadelphia (BOI - 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
May 17 — May 241
Sat 5/17
Sat 5/24
1 adult, Economy
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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Philadelphia are usually found in January or February, booked 20 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Boise to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Philadelphia (PHL). 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 May 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$290
(Booking.com)

One-way from

$108
(Cheapflightsfares)

Popular in

October

Cheapest in

January

Average price

$432
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 Boise Air Term. Gowen Fld to Philadelphia
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One-way flight from Boise Air Term. Gowen Fld to Philadelphia
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Highest demand for flights based on searches. 6% potential increase in price ($32 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 May 2025
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Find flight deals from Boise to Philadelphia

Cheapest flights from Boise to Philadelphia
Explore the most affordable flight options available from Boise to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2025.

This Booking.com deal was found by Cheapflights users on 5/11. 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.
Thu 6/512:36 pmBOI - PHL
1 stop14h 34mFrontier
Sun 6/86:15 amPHL - BOI
1 stop7h 32mFrontier
Deal found 5/11$290
This Mytrip deal was found by Cheapflights users on 5/12. 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 6/139:43 amBOI - PHL
2 stops43h 17mSpirit Airlines
Sun 6/222:38 pmPHL - BOI
2 stops20h 10mSpirit Airlines
Deal found 5/12$308
This Delta deal was found by Cheapflights users on 5/11. 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 6/1711:40 pmBOI - PHL
1 stop7h 54mDelta
Tue 7/14:05 pmPHL - BOI
1 stop8h 24mDelta
Deal found 5/11$325
This American Airlines deal was found by Cheapflights users on 5/12. 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 6/285:16 pmBOI - PHL
1 stop10h 34mAmerican Airlines
Thu 7/35:00 amPHL - BOI
1 stop7h 56mAmerican Airlines
Deal found 5/12$373
This Mytrip deal was found by Cheapflights users on 5/11. 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 6/169:43 amBOI - PHL
2 stops43h 17mMultiple Airlines
Wed 6/257:18 pmPHL - BOI
2 stops24h 56mMultiple Airlines
Deal found 5/11$374
This United Airlines deal was found by Cheapflights users on 5/12. 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 5/277:07 pmBOI - PHL
1 stop8h 50mUnited Airlines
Sat 5/316:30 amPHL - BOI
1 stop7h 13mUnited Airlines
Deal found 5/12$447
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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.
Fri 6/67:06 pmBOI - PHL
1 stop8h 34mAlaska Airlines
Sat 6/76:59 pmPHL - BOI
1 stop23h 55mAlaska Airlines
Deal found 5/11$508

Cheapflights Fare Finder

Customize your flight search to find flights from Boise 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 May 12, 2025.
Use the filters below to find and compare flights from Boise to Philadelphia that are best for you.

Fly from

Boise

Fly to

Philadelphia

Route

Depart

Return

Price

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Thu 6/5

12:36 pm-5:10 am

1 stop14h 34m

Philadelphia

Sun 6/8

6:15 am-11:47 am

1 stop7h 32m

$290

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Fri 6/13

9:43 am-7:00 am

2 stops43h 17m

Philadelphia

Sun 6/22

2:38 pm-8:48 am

2 stops20h 10m

$308

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Tue 6/17

11:40 pm-9:34 am

1 stop7h 54m

Philadelphia

Tue 7/1

4:05 pm-10:29 pm

1 stop8h 24m

$325

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Sat 6/28

5:16 pm-5:50 am

1 stop10h 34m

Philadelphia

Thu 7/3

5:00 am-10:56 am

1 stop7h 56m

$373

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Mon 6/16

9:43 am-7:00 am

2 stops43h 17m

Philadelphia

Wed 6/25

7:18 pm-6:14 pm

2 stops24h 56m

$374

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Tue 5/27

7:07 pm-5:57 am

1 stop8h 50m

Philadelphia

Sat 5/31

6:30 am-11:43 am

1 stop7h 13m

$447

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Fri 6/6

7:06 pm-5:40 am

1 stop8h 34m

Philadelphia

Sat 6/7

6:59 pm-4:54 pm

1 stop23h 55m

$508

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Thu 5/29

12:36 pm-10:05 pm

1 stop7h 29m

$108

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Mon 6/16

9:43 am-7:00 am

2 stops43h 17m

$130

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Tue 6/10

3:35 pm-12:59 am

1 stop7h 24m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Showing 1-10 of 12 results
1
2

Compare providers for flights from Boise to Philadelphia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Philadelphia in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boise-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-Philadelphia flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boise to Philadelphia

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

How far ahead should I book a flight from Boise to Philadelphia?

Use this chart to determine the optimal time to book a round-trip flight from Boise to Philadelphia. Price data was last updated on May 9, 2025.

Booking 20 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boise to Philadelphia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Boise to Philadelphia (average of $236). Flying from Boise 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 BOI to PHL?

Find hourly flight availability from Boise 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 May 12, 2025.

When flying from Boise to Philadelphia, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 19% versus a flight in the morning.

What is the cheapest day to fly from Boise to Philadelphia?

Use this chart to determine the cheapest time to fly round-trip from Boise to Philadelphia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boise to Philadelphia flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 May 12, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,724 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Spirit Airlines
6.3
Okay
7,984 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Boise to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Boise to Philadelphia round-trip?

    Frontier, at $290, was found to be the cheapest airline from Boise to Philadelphia.Alternate airlines to your destination round-trip include Spirit Airlines and Delta. Users have found that Frontier is 38% cheaper than the other options available to this destination.

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

    $108 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and American Airlines, with prices starting from $130 and $172, respectively.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Boise to Philadelphia (average of $236). Flying from Boise 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 Boise?

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

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Alternative routes for Boise to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Twin Falls to Reagan-National flights
Idaho Falls to Pittsburgh flights
Twin Falls to John F Kennedy Intl flights
Lewiston to Reagan-National flights
Lewiston to Dulles Intl flights
Spokane to Allentown flights
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Boise to Elmira flights
Lewiston to Newark flights

Top 4 airlines flying from Boise to Philadelphia

Discover the top 4 airlines that operate flights from Boise 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 May 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$297Average$427FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$338Average$508FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$367Average$502FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$376Average$629FlexibilityNo cancel feeOn-time69%

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