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$111+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOI
Jun 9 — Jun 161
Tue 6/9
Tue 6/16
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 May 10, 2026.

This Booking.com deal was found by Cheapflights users on 5/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/18:35 pm
PHL
-
BOI
1 stop17h 55m
Frontier
Tue 6/91:25 pm
BOI
-
PHL
1 stop20h 22m
Frontier
Deal found 5/6$237
This Mytrip deal was found by Cheapflights users on 5/6. 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.
Wed 5/271:59 pm
DCA
-
BOI
1 stop24h 31m
Frontier
Tue 6/21:25 pm
BOI
-
DCA
1 stop21h 34m
Frontier
Deal found 5/6$260
This Delta deal was found by Cheapflights users on 5/6. 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.
Thu 8/206:00 am
IAD
-
BOI
1 stop9h 42m
Delta
Mon 8/2411:35 pm
BOI
-
IAD
1 stop7h 44m
Delta
Deal found 5/6$263
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:00 am
DCA
-
BOI
1 stop8h 54m
Delta
Wed 7/152:50 pm
BOI
-
DCA
1 stop7h 06m
Delta
Deal found 5/9$263
This United Airlines deal was found by Cheapflights users on 5/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/43:56 pm
IAD
-
BOI
1 stop7h 33m
United Airlines
Tue 7/147:05 pm
BOI
-
IAD
1 stop8h 48m
United Airlines
Deal found 5/7$268
This Delta deal was found by Cheapflights users on 5/8. 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 5/276:30 am
DCA
-
BOI
1 stop8h 48m
Delta
Mon 6/111:39 pm
BOI
-
DCA
1 stop9h 21m
Delta
Deal found 5/8$268
This Southwest deal was found by Cheapflights users on 5/5. 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.
Wed 7/224:55 pm
DCA
-
BOI
2 stops9h 35m
Southwest
Mon 7/275:10 am
BOI
-
DCA
2 stops8h 35m
Southwest
Deal found 5/5$269
This Expedia deal was found by Cheapflights users on 5/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:00 am
DCA
-
BOI
1 stop7h 09m
Frontier
Tue 9/81:04 pm
BOI
-
DCA
1 stop21h 45m
Frontier
Deal found 5/10$270
This Delta deal was found by Cheapflights users on 5/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:00 am
IAD
-
BOI
2 stops8h 15m
Delta
Tue 7/1411:42 pm
BOI
-
IAD
1 stop7h 44m
Delta
Deal found 5/7$273
This American Airlines deal was found by Cheapflights users on 5/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/95:00 am
DCA
-
BOI
1 stop7h 28m
American Airlines
Tue 6/163:12 pm
BOI
-
DCA
1 stop6h 47m
American Airlines
Deal found 5/7$276
This Delta deal was found by Cheapflights users on 5/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:23 pm
DCA
-
BOI
2 stops13h 36m
Delta
Tue 8/182:53 pm
BOI
-
DCA
1 stop6h 57m
Delta
Deal found 5/7$278
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:00 am
PHL
-
BOI
1 stop8h 49m
Delta
Sat 8/295:10 am
BOI
-
PHL
1 stop9h 17m
Delta
Deal found 5/9$279

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 May 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$237
(Booking.com)

One-way from

$111
(Booking.com)

Popular in

June

Cheapest in

September

Average price

$436
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. 8% potential increase in price ($43 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 May 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 May 10, 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

Sat 7/18

6:00 am-12:53 pm

1 stop8h 53m

Boise Air Term. Gowen Fld

Tue 7/21

11:42 pm-9:26 am

1 stop7h 44m

$263

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Wed 5/27

6:00 am-1:18 pm

1 stop9h 18m

Boise Air Term. Gowen Fld

Mon 6/1

9:18 pm-11:18 am

2 stops12h 00m

$268

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Mon 7/13

5:29 pm-12:05 am

2 stops8h 36m

Boise Air Term. Gowen Fld

Wed 7/22

11:42 pm-9:16 am

1 stop7h 34m

$268

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

Tue 7/14

3:02 pm-10:32 pm

1 stop9h 30m

Boise Air Term. Gowen Fld

Wed 7/22

11:42 pm-9:26 am

1 stop7h 44m

$273

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Thu 5/28

2:45 pm-11:46 pm

2 stops11h 01m

Boise Air Term. Gowen Fld

Wed 6/3

5:45 am-3:28 pm

1 stop7h 43m

$273

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Wed 8/12

1:42 pm-11:59 pm

2 stops12h 17m

Boise Air Term. Gowen Fld

Tue 8/18

11:12 am-11:50 pm

2 stops10h 38m

$273

Washington, D.C.Boise

DCA - BOI

DCABOI

Washington, D.C. Reagan-National

Tue 7/14

1:42 pm-12:05 am

2 stops12h 23m

Boise Air Term. Gowen Fld

Wed 7/22

5:30 am-1:48 pm

1 stop6h 18m

$278

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Sat 7/18

11:16 am-9:02 pm

2 stops11h 46m

Boise Air Term. Gowen Fld

Mon 7/20

11:42 pm-9:31 am

1 stop7h 49m

$284

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Thu 7/16

5:28 pm-12:05 am

2 stops8h 37m

Boise Air Term. Gowen Fld

Mon 7/20

6:42 pm-8:41 am

2 stops11h 59m

$290

PhiladelphiaBoise

PHL - BOI

PHLBOI

Philadelphia

Sat 10/17

2:12 pm-12:04 am

2 stops11h 52m

Boise Air Term. Gowen Fld

Tue 10/20

7:30 pm-6:03 am

1 stop8h 33m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/9

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

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

The best time to book flights from Pennsylvania to Boise is 41 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.

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 $308). 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 $263, Delta can have you in Boise from Pennsylvania in 8h 53m. Pennsylvania and Boise are separated by a distance of 2019 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 $171 and $173 on American Airlines and Southwest, respectively.

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

    The most popular route from Pennsylvania to Boise is New York John F Kennedy Intl - Boise Air Term. Gowen Fld. You may also consider Newark - Boise Air Term. Gowen Fld or Washington, D.C. Dulles Intl - 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 $308). 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

Browse thousands of different options on Cheapflights for your next trip

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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 May 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$232Average$484FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$237Average$540FlexibilityNo cancel feeOn-time69%
DeltaCheapest$237Average$395FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$371Average$512FlexibilityNo cancel feeOn-time63%

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