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$86+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOI
May 11 — May 181
Mon 5/11
Mon 5/18
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 April 11, 2026.

This Frontier deal was found by Cheapflights users on 4/7. 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 5/98:35 pm
PHL
-
BOI
1 stop17h 52m
Frontier
Sun 5/171:22 pm
BOI
-
PHL
1 stop14h 15m
Frontier
Deal found 4/7$186
This Frontier deal was found by Cheapflights users on 4/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:00 am
DCA
-
BOI
1 stop7h 30m
Frontier
Sun 5/311:25 pm
BOI
-
DCA
1 stop21h 34m
Frontier
Deal found 4/8$192
This Mytrip deal was found by Cheapflights users on 4/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/258:35 pm
PHL
-
BOI
1 stop17h 55m
Frontier
Tue 6/21:25 pm
BOI
-
PHL
1 stop14h 12m
Frontier
Deal found 4/9$230
This United Airlines deal was found by Cheapflights users on 4/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:05 am
IAD
-
BOI
1 stop8h 43m
United Airlines
Tue 9/15:00 am
BOI
-
IAD
1 stop6h 30m
United Airlines
Deal found 4/11$258
This United Airlines deal was found by Cheapflights users on 4/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/314:07 pm
DCA
-
BOI
1 stop7h 18m
United Airlines
Tue 9/16:23 am
BOI
-
DCA
1 stop8h 33m
United Airlines
Deal found 4/11$258
This United Airlines deal was found by Cheapflights users on 4/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:10 am
IAD
-
BOI
1 stop7h 22m
United Airlines
Thu 5/282:05 pm
BOI
-
IAD
1 stop8h 50m
United Airlines
Deal found 4/8$263
This Delta deal was found by Cheapflights users on 4/11. 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.
Wed 5/274:40 pm
DCA
-
BOI
1 stop9h 15m
Delta
Mon 6/111:39 pm
BOI
-
DCA
1 stop7h 32m
Delta
Deal found 4/11$263
This Southwest deal was found by Cheapflights users on 4/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:25 am
LGA
-
BOI
1 stop8h 35m
Southwest
Fri 5/812:05 pm
BOI
-
LGA
1 stop8h 45m
Southwest
Deal found 4/8$267
This Delta deal was found by Cheapflights users on 4/10. 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 5/276:00 am
IAD
-
BOI
1 stop9h 18m
Delta
Mon 6/19:18 pm
BOI
-
IAD
2 stops11h 04m
Delta
Deal found 4/10$268
This Delta deal was found by Cheapflights users on 4/8. 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.
Wed 5/272:45 pm
DCA
-
BOI
2 stops11h 01m
Delta
Thu 5/285:45 am
BOI
-
DCA
1 stop7h 45m
Delta
Deal found 4/8$268
This Expedia deal was found by Cheapflights users on 4/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:00 am
DCA
-
BOI
1 stop7h 30m
Frontier
Thu 5/281:25 pm
BOI
-
DCA
1 stop21h 34m
Frontier
Deal found 4/9$270
This Delta deal was found by Cheapflights users on 4/8. 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.
Wed 4/297:00 am
IAD
-
BOI
1 stop8h 12m
Delta
Tue 5/511:35 pm
BOI
-
IAD
1 stop7h 40m
Delta
Deal found 4/8$271

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 April 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$186
(Frontier)

One-way from

$86
(Booking.com)

Popular in

December

Cheapest in

September

Average price

$410
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. 5% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 11, 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

Wed 6/3

7:00 am-2:41 pm

1 stop9h 41m

Boise Air Term. Gowen Fld

Mon 6/8

11:45 pm-9:21 am

1 stop7h 36m

$263

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Mon 8/31

4:40 pm-11:59 pm

1 stop9h 19m

Boise Air Term. Gowen Fld

Wed 9/9

6:00 am-3:40 pm

1 stop7h 40m

$263

New YorkBoise

LGA - BOI

LGABOI

New York LaGuardia

Sat 5/2

7:15 am-2:26 pm

1 stop9h 11m

Boise Air Term. Gowen Fld

Fri 5/8

11:39 pm-9:45 am

1 stop8h 06m

$267

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Tue 4/28

4:40 pm-12:25 am

1 stop9h 45m

Boise Air Term. Gowen Fld

Sat 5/2

7:35 am-6:25 pm

2 stops8h 50m

$268

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 5/27

5:59 pm-12:04 am

1 stop8h 05m

Boise Air Term. Gowen Fld

Fri 5/29

9:16 pm-8:37 am

2 stops9h 21m

$268

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 4/28

4:30 pm-12:25 am

2 stops9h 55m

Boise Air Term. Gowen Fld

Tue 5/5

6:00 am-11:40 pm

2 stops15h 40m

$279

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 4/28

4:30 pm-12:25 am

2 stops9h 55m

Boise Air Term. Gowen Fld

Sat 5/2

6:05 am-10:55 pm

2 stops14h 50m

$279

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Thu 7/9

6:57 pm-11:46 pm

1 stop6h 49m

Boise Air Term. Gowen Fld

Mon 7/13

11:42 pm-9:31 am

1 stop7h 49m

$279

New YorkBoise

JFK - BOI

JFKBOI

New York John F Kennedy Intl

Sat 5/2

4:29 pm-11:59 pm

1 stop9h 30m

Boise Air Term. Gowen Fld

Wed 5/6

6:00 am-7:11 pm

1 stop11h 11m

$281

New YorkBoise

JFK - BOI

JFKBOI

New York John F Kennedy Intl

Tue 5/5

7:00 am-3:33 pm

1 stop10h 33m

Boise Air Term. Gowen Fld

Sat 5/9

6:00 am-4:28 pm

1 stop8h 28m

$281

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/7

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, September is the cheapest month in which you can book a flight from Pennsylvania to Boise (average of $88). Flying from Pennsylvania to Boise in December is currently the most expensive (average of $334). 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?

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 $273, Delta can have you in Boise from Pennsylvania in 9h 30m. 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 American Airlines. According to our data, you can fly for as low as $171. Users have also found prices from $171 and $173 on Delta and Southwest, 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 Washington, D.C. Reagan-National - 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, September is the cheapest month in which you can book a flight from Pennsylvania to Boise (average of $88). Flying from Pennsylvania to Boise in December is currently the most expensive (average of $334). 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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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 April 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$232Average$473FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$237Average$501FlexibilityNo cancel feeOn-time69%
DeltaCheapest$237Average$383FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$371Average$508FlexibilityNo cancel feeOn-time63%

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