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$119+ Cheap flights from Pennsylvania to Boise (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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOI
Sep 2 — Sep 91
Wed 9/2
Wed 9/9
1 adult, Economy
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Cheap flight deals from Pennsylvania to Boise

Cheapest flights from Pennsylvania to Boise
Explore the most affordable flight options available from Pennsylvania to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 3, 2026.

This Frontier deal was found by Cheapflights users on 7/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:37 pm
PHL
-
BOI
1 stop16h 52m
Frontier
Sun 8/3012:24 pm
BOI
-
PHL
1 stop15h 15m
Frontier
Deal found 7/31$234
This Delta deal was found by Cheapflights users on 8/1. 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.
Sun 8/237:00 am
LGA
-
BOI
1 stop7h 49m
Delta
Tue 8/251:59 pm
BOI
-
LGA
1 stop7h 25m
Delta
Deal found 8/1$237
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Wed 8/268:27 am
JFK
-
BOI
1 stop8h 02m
American Airlines
Fri 8/285:19 pm
BOI
-
JFK
1 stop10h 41m
American Airlines
Deal found 7/31$237
This Southwest deal was found by Cheapflights users on 7/29. 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 8/212:35 pm
LGA
-
BOI
2 stops10h 00m
Southwest
Tue 8/256:00 am
BOI
-
LGA
2 stops8h 55m
Southwest
Deal found 7/29$247
This American Airlines deal was found by Cheapflights users on 8/1. 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 8/2210:00 am
JFK
-
BOI
1 stop8h 49m
American Airlines
Sat 8/295:19 pm
BOI
-
JFK
1 stop10h 41m
American Airlines
Deal found 8/1$247
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Mon 8/243:29 pm
LGA
-
BOI
1 stop9h 24m
United Airlines
Fri 8/282:44 pm
BOI
-
LGA
1 stop6h 40m
United Airlines
Deal found 7/29$257
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/224:10 pm
LGA
-
BOI
1 stop8h 43m
United Airlines
Sat 8/2912:24 pm
BOI
-
LGA
1 stop7h 01m
United Airlines
Deal found 8/1$266
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Wed 8/268:59 am
IAD
-
BOI
2 stops28h 30m
Frontier
Fri 9/112:50 pm
BOI
-
IAD
1 stop13h 30m
Frontier
Deal found 7/31$267
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Fri 9/186:00 am
IAD
-
BOI
1 stop9h 55m
Frontier
Mon 9/212:50 pm
BOI
-
IAD
1 stop13h 30m
Frontier
Deal found 8/2$269
This United Airlines deal was found by Cheapflights users on 8/2. 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.
Mon 8/243:29 pm
LGA
-
BOI
1 stop9h 24m
United Airlines
Sat 8/2912:24 pm
BOI
-
LGA
1 stop7h 30m
United Airlines
Deal found 8/2$269
This Delta deal was found by Cheapflights users on 8/2. 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 8/296:00 am
LGA
-
BOI
1 stop9h 42m
Delta
Fri 9/112:11 pm
BOI
-
LGA
1 stop7h 29m
Delta
Deal found 8/2$272
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Fri 9/186:00 am
IAD
-
BOI
1 stop9h 55m
Frontier
Sun 9/202:50 pm
BOI
-
IAD
1 stop13h 30m
Frontier
Deal found 8/2$273

Find flight deals from Pennsylvania to Boise

Keep the following information in mind while searching for Pennsylvania to Boise flight deals. Data was last updated August 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$234
(Frontier)

One-way from

$119
(United Airlines)

Popular in

June

Cheapest in

April

Average price

$416
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 Pennsylvania to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Pennsylvania to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pennsylvania 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 August 3, 2026.
Use the filters below to find and compare flights from Pennsylvania to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 9/8

7:00 am-3:30 pm

1 stop10h 30m

Boise Air Term. Gowen Fld

Thu 9/17

5:52 pm-5:40 am

1 stop9h 48m

$303

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Fri 9/11

6:00 am-1:01 pm

1 stop9h 01m

Boise Air Term. Gowen Fld

Sat 9/12

2:50 pm-11:23 pm

1 stop6h 33m

$303

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Thu 9/24

5:57 pm-9:56 am

1 stop17h 59m

Boise Air Term. Gowen Fld

Mon 9/28

4:20 pm-5:40 am

1 stop11h 20m

$303

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Wed 8/26

6:00 am-1:42 pm

1 stop9h 42m

Boise Air Term. Gowen Fld

Fri 9/11

2:50 pm-11:23 pm

1 stop6h 33m

$303
Quickest round-trip

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 8/26

5:59 pm-11:59 pm

1 stop8h 00m

Boise Air Term. Gowen Fld

Fri 9/11

2:50 pm-11:59 pm

1 stop7h 09m

$303

New YorkBoise

JFK - BOI

JFKBOI

New York John F Kennedy Intl

Thu 10/29

11:55 am-6:33 pm

1 stop8h 38m

Boise Air Term. Gowen Fld

Sat 10/31

12:08 pm-12:21 am

1 stop10h 13m

$307

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Sat 8/22

7:25 am-12:49 pm

1 stop7h 24m

Boise Air Term. Gowen Fld

Sat 8/29

1:59 pm-1:19 am

1 stop9h 20m

$311

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Thu 9/3

3:58 pm-9:57 pm

1 stop7h 59m

Boise Air Term. Gowen Fld

Sat 9/19

5:59 pm-5:50 am

1 stop9h 51m

$311

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Mon 8/31

4:55 pm-11:55 pm

2 stops9h 00m

Boise Air Term. Gowen Fld

Wed 9/9

12:35 pm-11:55 pm

2 stops9h 20m

$313

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Tue 10/27

4:00 pm-11:50 pm

2 stops9h 50m

Boise Air Term. Gowen Fld

Thu 10/29

5:40 am-4:25 pm

2 stops8h 45m

$313

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/2

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Pennsylvania to Boise

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

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

Currently, January is the cheapest month in which you can book a flight from Pennsylvania to Boise (average of $350). Flying from Pennsylvania to Boise in July is currently the most expensive (average of $589). 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.

How much does it cost to fly round-trip from Pennsylvania to Boise?

Airfare is below average for this route at the moment.
Pennsylvania to Boise flights typically cost between $300 and $556 in August.
The cheapest round-trip price found within the last 5 days was $234 on Frontier (Aug 22-Aug 30).

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

The best time to book flights from Pennsylvania to Boise is 8 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

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

  • What airport do you fly into for flights to Boise from Pennsylvania?

    Boise Air Term. Gowen Fld (BOI) is the airport you will fly into if you book a flight from Pennsylvania to Boise. It is only a 3.3 mi journey from Air Term. Gowen Fld (BOI) to Boise’s city center.

  • How long is the flight from Pennsylvania to Boise?

    For as low as $313, Alaska Airlines can have you in Boise from Pennsylvania in 9h. Pennsylvania and Boise are separated by a distance of 2042 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $139. Users have also found prices from $150 and $167 on United Airlines and American Airlines, respectively.

  • What are the most popular routes from Pennsylvania to Boise?

    The most popular route from Pennsylvania to Boise is Washington, D.C. Dulles Intl - Boise Air Term. Gowen Fld. You may also consider New York John F Kennedy Intl - Boise Air Term. Gowen Fld or Newark - Boise Air Term. Gowen Fld.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Pennsylvania to Boise (average of $350). Flying from Pennsylvania to Boise in July is currently the most expensive (average of $589). 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

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Top 4 airlines flying from Pennsylvania to Boise

Discover the top 4 airlines that operate flights from Pennsylvania 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 August 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$237Average$556FlexibilityNo cancel feeOn-time69%
DeltaCheapest$262Average$484FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$283Average$537FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$371Average$540FlexibilityNo cancel feeOn-time63%

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