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$151+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOI
jan 25 — fev 11
dom 1/25
dom 2/1
1 adult, Economy
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Find cheap flights from Philadelphia to Boise with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Philadelphia to Boise Air Term. Gowen Fld are usually found in September or August, booked 90 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap 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 dezembro 26, 2025.

This Delta deal was found by Cheapflights users on 12/24. 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.
seg 12/297:05 amPHL - BOI
1 stop6h 57mDelta
qui 1/11:55 pmBOI - PHL
1 stop8h 32mDelta
Deal found 12/24$528
This Delta deal was found by Cheapflights users on 12/24. 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.
qua 12/317:05 amPHL - BOI
1 stop6h 57mDelta
dom 1/46:19 pmBOI - PHL
1 stop9h 31mDelta
Deal found 12/24$568
This Southwest deal was found by Cheapflights users on 12/24. 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.
qua 12/312:45 pmPHL - BOI
2 stops10h 25mSouthwest
dom 1/45:00 amBOI - PHL
2 stops10h 45mSouthwest
Deal found 12/24$608
This United Airlines deal was found by Cheapflights users on 12/23. 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.
sex 12/268:00 amPHL - BOI
1 stop7h 36mUnited Airlines
ter 12/305:00 amBOI - PHL
1 stop8h 46mUnited Airlines
Deal found 12/23$716
This Delta deal was found by Cheapflights users on 12/24. 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.
sex 12/266:45 pmPHL - BOI
1 stop7h 34mDelta
seg 1/56:15 pmBOI - PHL
2 stops14h 45mDelta
Deal found 12/24$721
This Southwest deal was found by Cheapflights users on 12/26. 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.
ter 12/307:40 amPHL - BOI
2 stops11h 20mSouthwest
sáb 1/38:40 pmBOI - PHL
2 stops10h 30mSouthwest
Deal found 12/26$747
This Southwest deal was found by Cheapflights users on 12/25. 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.
seg 12/295:40 pmPHL - BOI
1 stop9h 00mSouthwest
qua 12/315:15 amBOI - PHL
1 stop9h 05mSouthwest
Deal found 12/25$755
This United Airlines deal was found by Cheapflights users on 12/25. 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.
seg 12/296:35 amPHL - BOI
1 stop8h 04mUnited Airlines
qua 12/318:30 amBOI - PHL
2 stops13h 00mUnited Airlines
Deal found 12/25$760

Find 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 dezembro 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$304
(Alaska Airlines)

One-way from

$151
(Delta)

Popular in

December

Cheapest in

September

Average price

$616
Provider with most accurate pricing for Philadelphia-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Boise Air Term. Gowen Fld flights.
Search Deals
From Philadelphia to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Philadelphia to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 dezembro 26, 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

ter 2/24

6:20 pm-10:40 pm

1 stop30h 20m

Boise Air Term. Gowen Fld

ter 3/3

6:28 am-5:20 pm

1 stop8h 52m

$304

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

qua 2/18

12:29 pm-9:56 pm

2 stops11h 27m

Boise Air Term. Gowen Fld

qua 2/25

5:50 am-5:56 pm

2 stops10h 06m

$316

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

ter 2/24

6:10 am-4:15 pm

2 stops12h 05m

Boise Air Term. Gowen Fld

ter 3/3

8:50 am-11:46 pm

2 stops12h 56m

$316

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

qua 2/18

3:54 pm-11:34 pm

1 stop9h 40m

Boise Air Term. Gowen Fld

qua 2/25

1:39 pm-11:52 pm

1 stop8h 13m

$319

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

qua 2/18

5:00 pm-11:10 pm

1 stop8h 10m

Boise Air Term. Gowen Fld

qua 2/25

6:40 am-8:20 pm

2 stops11h 40m

$324

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

dom 1/18

6:00 am-2:02 pm

2 stops10h 02m

Boise Air Term. Gowen Fld

qua 1/21

3:03 pm-11:56 pm

1 stop6h 53m

$324

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

sáb 1/17

6:00 am-2:02 pm

1 stop10h 02m

Boise Air Term. Gowen Fld

sáb 1/24

11:20 am-11:25 pm

2 stops10h 05m

$324

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

qua 2/4

7:06 pm-10:52 am

1 stop17h 46m

Boise Air Term. Gowen Fld

ter 2/10

6:23 am-6:03 pm

1 stop9h 40m

$325

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

ter 2/3

7:06 pm-12:51 pm

1 stop19h 45m

Boise Air Term. Gowen Fld

dom 2/8

6:23 am-6:03 pm

1 stop9h 40m

$334

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

qua 2/11

6:55 am-6:28 pm

2 stops13h 33m

Boise Air Term. Gowen Fld

ter 2/17

5:50 am-7:25 pm

2 stops11h 35m

$336

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 19 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 December.
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 Philadelphia-Boise flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Philadelphia-Boise flight deals on Cheapflights vs. eDreams >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 December 19, 2025.

To ensure you get the cheapest price possible for a flight from Philadelphia to Boise, you should look to book at least 90 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, February is the cheapest month in which you can book a flight from Philadelphia to Boise (average of $134). Flying from Philadelphia to Boise in January is currently the most expensive (average of $293). 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 dezembro 26, 2025.

It’s optimal to fly from Philadelphia to Boise at noon. By choosing this option you can save up to 53% 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 dezembro 26, 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
4,258 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,258 reviews
Southwest
8.0
Very good
4,258 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,018 reviews
Southwest
8.0
Very good
4,258 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,116 reviews
Southwest
8.0
Very good
4,258 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,068 reviews
Southwest
8.0
Very good
4,258 reviews

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 $319, Alaska Airlines can have you in Boise from Philadelphia in 9h 40m. 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 $270 on this airline. Additional options worth looking into are American Airlines and Southwest, starting at $298 and $358 round-trip. Delta is priced at 41% 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 Delta, which is currently one of the cheapest options available, starting at $168. American Airlines flights start at $171 while deals on Southwest start at $173 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, February is the cheapest month in which you can book a flight from Philadelphia to Boise (average of $134). Flying from Philadelphia to Boise in January is currently the most expensive (average of $293). 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 dezembro 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$270Average$446FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$298Average$439FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$358Average$481FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$367Average$543FlexibilityNo cancel feeOn-time69%

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