$864 Cheap United flights Philadelphia (PHL) to Porto (OPO)

$864 Cheap United flights Philadelphia (PHL) to Porto (OPO)

Prices were available within the past 7 days and start at $864 for one-way flights and $879 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jun 14 - Tue, Jun 30

PHL

Philadelphia

OPO

Porto

$879 Roundtrip, found 8 hours ago

$879

Roundtrip

found 8 hours ago

Select United flight, departing Sun, Jun 14 from Philadelphia to Porto, returning Tue, Jun 30, priced at $879 found 8 hours ago

Sun, Jun 14 - Sun, Jun 28

PHL

Philadelphia

OPO

Porto

$1,034 Roundtrip, found 8 hours ago

$1,034

Roundtrip

found 8 hours ago

Select United flight, departing Sun, Jun 14 from Philadelphia to Porto, returning Sun, Jun 28, priced at $1,034 found 8 hours ago

Sun, Jun 14 - Sat, Jun 27

PHL

Philadelphia

OPO

Porto

$1,055 Roundtrip, found 8 hours ago

$1,055

Roundtrip

found 8 hours ago

Select United flight, departing Sun, Jun 14 from Philadelphia to Porto, returning Sat, Jun 27, priced at $1,055 found 8 hours ago

Tue, Jun 16 - Tue, Jun 30

PHL

Philadelphia

OPO

Porto

$1,104 Roundtrip, found 8 hours ago

$1,104

Roundtrip

found 8 hours ago

Select United flight, departing Tue, Jun 16 from Philadelphia to Porto, returning Tue, Jun 30, priced at $1,104 found 8 hours ago

Sun, Jun 14 - Thu, Jun 25

PHL

Philadelphia

OPO

Porto

$1,259 Roundtrip, found 8 hours ago

$1,259

Roundtrip

found 8 hours ago

Select United flight, departing Sun, Jun 14 from Philadelphia to Porto, returning Thu, Jun 25, priced at $1,259 found 8 hours ago

Tue, Jun 16 - Sat, Jun 27

PHL

Philadelphia

OPO

Porto

$1,280 Roundtrip, found 8 hours ago

$1,280

Roundtrip

found 8 hours ago

Select United flight, departing Tue, Jun 16 from Philadelphia to Porto, returning Sat, Jun 27, priced at $1,280 found 8 hours ago