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$172+ Cheap flights from Philadelphia to Boise (PHL - BOI)

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOI
May 17 — May 241
Sat 5/17
Sat 5/24
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Boise Air Term. Gowen Fld are usually found in September or March, booked 65 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Philadelphia to Boise

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

$247
(Cheapflightsfares)

One-way from

$172
(American Airlines)

Popular in

November

Cheapest in

September

Average price

$488
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 Boise Air Term. Gowen Fld
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One-way flight from Philadelphia to Boise Air Term. Gowen Fld
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Highest demand for flights based on searches. 16% potential increase in price ($98 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 May 2025
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Find flight deals from Philadelphia to Boise

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

This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/226:15 amPHL - BOI
1 stop7h 36mFrontier
Thu 5/2912:36 pmBOI - PHL
1 stop7h 29mFrontier
Deal found 5/11$247
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/19:50 amPHL - BOI
1 stop8h 56mAmerican Airlines
Sat 7/55:17 pmBOI - PHL
1 stop10h 33mAmerican Airlines
Deal found 5/11$307
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 7/18:00 amPHL - BOI
2 stops11h 13mDelta
Sat 7/53:00 pmBOI - PHL
1 stop7h 26mDelta
Deal found 5/11$312
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/146:15 amPHL - BOI
1 stop7h 31mMultiple Airlines
Mon 8/189:49 pmBOI - PHL
2 stops22h 53mMultiple Airlines
Deal found 5/11$334
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/14:45 pmPHL - BOI
2 stops9h 55mSouthwest
Sat 7/55:00 amBOI - PHL
2 stops8h 55mSouthwest
Deal found 5/11$389
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.
Fri 7/48:15 amPHL - BOI
2 stops11h 52mUnited Airlines
Sat 7/127:00 amBOI - PHL
2 stops12h 35mUnited Airlines
Deal found 5/12$437
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1912:06 pmPHL - BOI
1 stop9h 20mSun Country Air
Sun 6/227:26 pmBOI - PHL
1 stop13h 44mSun Country Air
Deal found 5/11$441
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.
Fri 8/87:00 amPHL - BOI
2 stops11h 42mSpirit Airlines
Mon 8/189:49 pmBOI - PHL
3 stops22h 53mSpirit Airlines
Deal found 5/11$640

Cheapflights Fare Finder

Customize your flight search to find flights from Philadelphia to Boise 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 Philadelphia to Boise that are best for you.

Fly from

Philadelphia

Fly to

Boise

Route

Depart

Return

Price

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Thu 5/22

6:15 am-11:51 am

1 stop7h 36m

Boise Air Term. Gowen Fld

Thu 5/29

12:36 pm-10:05 pm

1 stop7h 29m

$247

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Tue 7/1

9:50 am-4:46 pm

1 stop8h 56m

Boise Air Term. Gowen Fld

Sat 7/5

5:17 pm-5:50 am

1 stop10h 33m

$307

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Tue 7/1

8:00 am-5:13 pm

2 stops11h 13m

Boise Air Term. Gowen Fld

Sat 7/5

3:00 pm-12:26 am

1 stop7h 26m

$312

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Thu 8/14

6:15 am-11:46 am

1 stop7h 31m

Boise Air Term. Gowen Fld

Mon 8/18

9:49 pm-10:42 pm

2 stops22h 53m

$334

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Tue 7/1

4:45 pm-12:40 am

2 stops9h 55m

Boise Air Term. Gowen Fld

Sat 7/5

5:00 am-3:55 pm

2 stops8h 55m

$389

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Fri 7/4

8:15 am-6:07 pm

2 stops11h 52m

Boise Air Term. Gowen Fld

Sat 7/12

7:00 am-9:35 pm

2 stops12h 35m

$437

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Thu 6/19

12:06 pm-7:26 pm

1 stop9h 20m

Boise Air Term. Gowen Fld

Sun 6/22

7:26 pm-11:10 am

1 stop13h 44m

$441

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Fri 8/8

7:00 am-4:42 pm

2 stops11h 42m

Boise Air Term. Gowen Fld

Mon 8/18

9:49 pm-10:42 pm

3 stops22h 53m

$640

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Tue 6/10

7:30 am-12:44 pm

1 stop7h 14m

$172

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Tue 6/10

5:30 am-12:06 pm

2 stops8h 36m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 13 results
1
2

Compare providers for flights from Philadelphia to Boise

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 Philadelphia to Boise 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 Philadelphia-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Boise flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Boise 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 Philadelphia-Boise 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 Philadelphia to Boise

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

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

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

To ensure you get the cheapest price possible for a flight from Philadelphia to Boise, you should look to book at least 65 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, October is the cheapest month in which you can book a flight from Philadelphia to Boise (average of $314). Flying from Philadelphia to Boise in June is currently the most expensive (average of $399). 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 BOI?

Find hourly flight availability from Philadelphia to Boise. 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.

It’s optimal to fly from Philadelphia to Boise at noon. By choosing this option you can save up to 54% on the cost of your flight, compared to a flight in the evening.

Rainfall in Boise by month

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

In terms of precipitation, rainfall in Boise 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 Boise when rainfall is around 0.2 in.

Temperature in Boise by month

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

If weather is an important factor for your trip to Boise, 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 Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated May 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Philadelphia to Boise by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Comfort

7.9

Crew

8.5

Entertainment

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

Food

7.1

Comfort

7.9

Crew

8.5

Entertainment

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.
Southwest
8.0
Very good
4,288 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Comfort

7.9

Crew

8.5

Entertainment

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

Food

7.1

Comfort

7.9

Crew

8.5

Entertainment

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

Food

7.1

Comfort

7.9

Crew

8.5

Entertainment

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

Food

7.1

Comfort

7.9

Crew

8.5

Entertainment

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 Philadelphia to Boise. 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 Philadelphia to Boise round-trip?

    Our cheapest airline available from Philadelphia to Boise is Frontier. Our recent data shows that you can find tickets from as low as $247 on this airline. Additional options worth looking into are American Airlines and Delta, starting at $307 and $312 round-trip. Frontier is priced at 50% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $172. Delta flights start at $177 while deals on United Airlines start at $179 one-way.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Philadelphia to Boise (average of $314). Flying from Philadelphia to Boise in June is currently the most expensive (average of $399). 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
Nampa
Meridian
McCall
Caldwell
Ontario

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Alternative routes for Philadelphia to Boise

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 Boise

Discover the top 5 airlines that operate flights from Philadelphia to Boise. 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
Spirit AirlinesCheapest$160Average$367FlexibilityNo cancel feeOn-time65%
DeltaCheapest$309Average$471FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$336Average$513FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$362Average$427FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$372Average$549FlexibilityNo cancel feeOn-time69%

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