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$223+ 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOI
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Philadelphia to Boise Air Term. Gowen Fld are usually found in August or September, booked 83 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 September 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(Delta)

One-way from

$223
(Delta)

Popular in

December

Cheapest in

August

Average price

$365
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. 12% potential increase in price ($65 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 September 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 September 29, 2025.

This Delta deal was found by Cheapflights users on 9/26. 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.
Sat 11/86:50 amPHL - BOI
1 stop7h 39mDelta
Tue 11/118:45 amBOI - PHL
1 stop6h 52mDelta
Deal found 9/26$309
This Alaska Airlines deal was found by Cheapflights users on 9/27. 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.
Sat 10/257:00 amPHL - BOI
1 stop9h 36mAlaska Airlines
Sat 11/14:57 pmBOI - PHL
1 stop11h 43mAlaska Airlines
Deal found 9/27$336
This Delta deal was found by Cheapflights users on 9/26. 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 11/72:25 pmPHL - BOI
1 stop10h 04mDelta
Tue 11/118:45 amBOI - PHL
1 stop6h 52mDelta
Deal found 9/26$339
This United Airlines deal was found by Cheapflights users on 9/27. 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.
Sat 10/256:30 amPHL - BOI
2 stops9h 03mUnited Airlines
Sat 11/112:45 pmBOI - PHL
1 stop6h 36mUnited Airlines
Deal found 9/27$342
This Southwest deal was found by Cheapflights users on 9/26. 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.
Fri 11/76:35 pmPHL - BOI
1 stop8h 00mSouthwest
Tue 11/115:15 amBOI - PHL
2 stops7h 50mSouthwest
Deal found 9/26$344
This Delta deal was found by Cheapflights users on 9/27. 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.
Sat 10/2512:23 pmPHL - BOI
2 stops13h 45mDelta
Sat 11/111:12 amBOI - PHL
2 stops10h 37mDelta
Deal found 9/27$347
This Delta deal was found by Cheapflights users on 9/28. 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 12/106:15 amPHL - BOI
1 stop10h 03mDelta
Sat 12/133:13 pmBOI - PHL
1 stop6h 44mDelta
Deal found 9/28$350
This Delta deal was found by Cheapflights users on 9/28. 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 12/106:15 amPHL - BOI
1 stop10h 03mDelta
Sun 12/147:45 pmBOI - PHL
2 stops13h 08mDelta
Deal found 9/28$357
This Delta deal was found by Cheapflights users on 9/28. 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 12/96:30 pmPHL - BOI
1 stop7h 39mDelta
Sun 12/142:04 pmBOI - PHL
1 stop8h 47mDelta
Deal found 9/28$359

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 September 29, 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

Sat 11/8

1:50 pm-10:32 pm

2 stops10h 42m

Boise Air Term. Gowen Fld

Tue 11/11

2:16 pm-11:59 pm

1 stop7h 43m

$314

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Sat 11/8

7:00 pm-11:54 pm

1 stop6h 54m

Boise Air Term. Gowen Fld

Tue 11/11

11:10 am-10:50 pm

2 stops9h 40m

$314

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Tue 12/9

6:15 am-2:18 pm

1 stop10h 03m

Boise Air Term. Gowen Fld

Sat 12/13

11:10 am-11:10 pm

2 stops10h 00m

$314

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Wed 12/10

6:30 pm-12:09 am

1 stop7h 39m

Boise Air Term. Gowen Fld

Sat 12/13

11:10 am-12:36 am

2 stops11h 26m

$314

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Fri 11/7

2:25 pm-10:29 pm

1 stop10h 04m

Boise Air Term. Gowen Fld

Tue 11/11

8:45 am-5:37 pm

1 stop6h 52m

$339

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Fri 11/7

6:35 pm-12:35 am

1 stop8h 00m

Boise Air Term. Gowen Fld

Tue 11/11

5:15 am-3:05 pm

2 stops7h 50m

$344

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Sat 10/25

12:23 pm-12:08 am

2 stops13h 45m

Boise Air Term. Gowen Fld

Sat 11/1

11:12 am-11:49 pm

2 stops10h 37m

$347

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Wed 12/10

6:15 am-2:18 pm

1 stop10h 03m

Boise Air Term. Gowen Fld

Sun 12/14

7:45 pm-10:53 am

2 stops13h 08m

$357

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Sat 12/20

7:15 pm-1:00 am

1 stop7h 45m

$249

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Tue 10/14

6:00 am-4:06 pm

2 stops12h 06m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/27

Showing 1-10 of 16 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 September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 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 FlightHub the most. FlightHub 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 September 26, 2025.

To ensure you get the cheapest price possible for a flight from Philadelphia to Boise, you should look to book at least 83 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 $398). 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 September 29, 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.

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 September 29, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Philadelphia to Boise have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

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
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

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
8.0
Very good
7,964 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

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
8,924 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

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
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

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 Philadelphia to Boise. 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 Philadelphia to Boise?

    For as low as $314, American Airlines can have you in Boise from Philadelphia in 6h 54m. Philadelphia and Boise are separated by a distance of 2106 mi. This flight may include one or multiple stops.

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

    Our cheapest airline available from Philadelphia to Boise is Delta. Our recent data shows that you can find tickets from as low as $313 on this airline. Additional options worth looking into are American Airlines and Southwest, starting at $316 and $364 round-trip. Delta is priced at 33% lower than the current average price of a flight leaving 3 months from now.

  • 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 $398). 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
Ontario
Meridian
Nampa
Caldwell
McCall

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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 4 airlines flying from Philadelphia to Boise

Discover the top 4 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 September 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$313Average$478FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$316Average$467FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$364Average$448FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$367Average$542FlexibilityNo cancel feeOn-time69%

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