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$101+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — PHL
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
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 April, booked 20 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

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 November 10, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1112:44 pmBOI - PHL
2 stops23h 55mFrontier
Fri 12/198:36 pmPHL - BOI
1 stop17h 23mFrontier
Deal found 11/9$213
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/712:44 pmBOI - PHL
1 stop14h 47mMultiple Airlines
Wed 12/105:30 amPHL - BOI
2 stops32h 19mMultiple Airlines
Deal found 11/9$282
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:03 amBOI - PHL
1 stop21h 43mHawaiian Airlines
Mon 12/156:54 pmPHL - BOI
1 stop19h 51mHawaiian Airlines
Deal found 11/8$315
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:48 pmBOI - PHL
1 stop13h 57mFrontier
Tue 11/256:00 amPHL - BOI
1 stop7h 53mFrontier
Deal found 11/9$327
This Alaska Airlines deal was found by Cheapflights users on 11/9. 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 12/55:59 pmBOI - PHL
1 stop9h 47mAlaska Airlines
Mon 12/86:54 pmPHL - BOI
1 stop28h 51mAlaska Airlines
Deal found 11/9$334
This Delta deal was found by Cheapflights users on 11/8. 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.
Mon 11/241:49 pmBOI - PHL
1 stop9h 02mDelta
Thu 11/276:00 amPHL - BOI
1 stop8h 39mDelta
Deal found 11/8$337
This flugladen.de deal was found by Cheapflights users on 11/8. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:03 amBOI - PHL
1 stop9h 50mMultiple Airlines
Mon 12/1512:33 pmPHL - BOI
2 stops13h 17mMultiple Airlines
Deal found 11/8$345
This Delta deal was found by Cheapflights users on 11/9. 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.
Fri 12/59:00 amBOI - PHL
2 stops12h 10mDelta
Mon 12/87:05 amPHL - BOI
2 stops13h 46mDelta
Deal found 11/9$346
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:48 pmBOI - PHL
1 stop13h 57mFrontier
Tue 12/210:00 pmPHL - BOI
2 stops39h 49mFrontier
Deal found 11/8$348
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:48 pmBOI - PHL
1 stop13h 57mMultiple Airlines
Thu 12/46:00 amPHL - BOI
2 stops31h 49mMultiple Airlines
Deal found 11/8$358
This Delta deal was found by Cheapflights users on 11/8. 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.
Mon 11/241:49 pmBOI - PHL
1 stop9h 02mDelta
Thu 12/46:00 amPHL - BOI
2 stops14h 52mDelta
Deal found 11/8$360

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 November 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$213
(Kiwi.com)

One-way from

$101
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$599
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Philadelphia flights.
Search Deals
From Boise Air Term. Gowen Fld to Philadelphia
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Philadelphia
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($73 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 10, 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 12/11

12:44 pm-2:39 pm

2 stops23h 55m

Philadelphia

Fri 12/19

8:36 pm-11:59 am

1 stop17h 23m

$213

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Tue 1/20

8:50 am-11:57 pm

2 stops13h 07m

Philadelphia

Wed 2/18

7:00 am-6:28 pm

2 stops13h 28m

$346

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Tue 3/10

1:43 pm-10:56 pm

1 stop7h 13m

Philadelphia

Wed 3/11

6:30 pm-11:42 pm

1 stop7h 12m

$359

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Mon 11/24

1:49 pm-12:51 am

1 stop9h 02m

Philadelphia

Thu 12/4

6:55 am-12:54 pm

1 stop7h 59m

$361

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Fri 12/5

1:54 pm-5:50 am

2 stops13h 56m

Philadelphia

Mon 12/8

6:55 am-12:54 pm

1 stop7h 59m

$385

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Sat 12/6

5:00 am-3:55 pm

2 stops8h 55m

Philadelphia

Mon 12/15

4:00 pm-11:10 pm

2 stops9h 10m

$386

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Wed 2/11

6:23 am-6:03 pm

1 stop9h 40m

Philadelphia

Fri 2/13

6:20 pm-9:30 am

1 stop17h 10m

$391

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Fri 12/12

12:44 pm-5:31 am

1 stop14h 47m

$101

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Sun 11/23

12:48 pm-10:38 am

2 stops19h 50m

$128

BoisePhiladelphia

BOI - PHL

BOIPHL

Boise Air Term. Gowen Fld

Fri 12/12

12:44 pm-12:36 am

3 stops33h 52m

$152

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

Showing 1-10 of 14 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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boise-Philadelphia flight deals on Cheapflights vs. eDreams >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 November 7, 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, September is the cheapest month in which you can book a flight from Boise to Philadelphia (average of $115). Flying from Boise to Philadelphia in March is currently the most expensive (average of $274). 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 November 10, 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 18% 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.

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 November 10, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Boise to Philadelphia 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
8.0
Very good
4,235 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,235 reviews
Southwest
8.0
Very good
4,235 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,007 reviews
Southwest
8.0
Very good
4,235 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,012 reviews
Southwest
8.0
Very good
4,235 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,045 reviews
Southwest
8.0
Very good
4,235 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,113 reviews
Southwest
8.0
Very good
4,235 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Boise to Philadelphia?

    Departing from Boise to Philadelphia will take you 13h 07m. Boise and Philadelphia are separated by a distance of 2106 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Frontier, at $130, was found to be the cheapest airline from Boise to Philadelphia.Alternate airlines to your destination round-trip include Delta and American Airlines. Users have found that Frontier is 72% cheaper than the other options available to this destination.

  • 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, September is the cheapest month in which you can book a flight from Boise to Philadelphia (average of $115). Flying from Boise to Philadelphia in March is currently the most expensive (average of $274). 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 Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
King of Prussia
Pottstown
Reading
Ocean City
Cherry Hill
Dewey Beach
Ephrata
Camden
Vineland
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Newark
Millville
Chester
Exton

Browse thousands of different options on Cheapflights for your next trip

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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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Top 5 airlines flying from Boise to Philadelphia

Discover the top 5 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 November 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$248FlexibilityNo cancel feeOn-time62%
DeltaCheapest$228Average$427FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$319Average$470FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$342Average$515FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$407Average$507FlexibilityNo cancel feeOn-time63%

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