Flights to King of Prussia from Boston - $54

Cheap Flights from Boston to King of Prussia (BOS-PHL)

Prices were available within the past 7 days and start at $54 for one-way flights and $109 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jun 17 - Tue, Jun 24

BOS

Boston

PHL

Philadelphia

$109 Roundtrip, found 5 hours ago

$109

Roundtrip

found 5 hours ago

Select Frontier Airlines flight, departing Tue, Jun 17 from Boston to Philadelphia, returning Tue, Jun 24, priced at $109 found 5 hours ago

Thu, May 29 - Tue, Jun 10

BOS

Boston

PHL

Philadelphia

$147 Roundtrip, found 4 hours ago

$147

Roundtrip

found 4 hours ago

Select Spirit Airlines flight, departing Thu, May 29 from Boston to Philadelphia, returning Tue, Jun 10, priced at $147 found 4 hours ago

Sat, May 24 - Tue, May 27

BOS

Boston

PHL

Philadelphia

$147 Roundtrip, just found

$147

Roundtrip

just found

Select Delta flight, departing Sat, May 24 from Boston to Philadelphia, returning Tue, May 27, priced at $147 just found

Tue, May 13 - Sat, May 17

BOS

Boston

PHL

Philadelphia

$147 Roundtrip, found 1 hour ago

$147

Roundtrip

found 1 hour ago

Select JetBlue Airways flight, departing Tue, May 13 from Boston to Philadelphia, returning Sat, May 17, priced at $147 found 1 hour ago

Sat, May 24 - Tue, May 27

BOS

Boston

PHL

Philadelphia

$147 Roundtrip, just found

$147

Roundtrip

just found

Select American Airlines flight, departing Sat, May 24 from Boston to Philadelphia, returning Tue, May 27, priced at $147 just found

Tue, Sep 2 - Tue, Sep 9

ORH

Worcester

PHL

Philadelphia

$165 Roundtrip, found 1 day ago

$165

Roundtrip

found 1 day ago

Select American Airlines flight, departing Tue, Sep 2 from Worcester to Philadelphia, returning Tue, Sep 9, priced at $165 found 1 day ago