$438 Cheap United flights Philadelphia (PHL) to Porto (OPO)

$438 Cheap United flights Philadelphia (PHL) to Porto (OPO)

Prices were available within the past 7 days and start at $438 for one-way flights and $579 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Nov 4 - Thu, Nov 13

PHL

Philadelphia

OPO

Porto

$579 Roundtrip, found 13 hours ago

$579

Roundtrip

found 13 hours ago

Select United flight, departing Tue, Nov 4 from Philadelphia to Porto, returning Thu, Nov 13, priced at $579 found 13 hours ago

Tue, Nov 4 - Thu, Nov 13

PHL

Philadelphia

OPO

Porto

$584 Roundtrip, found 13 hours ago

$584

Roundtrip

found 13 hours ago

Select United flight, departing Tue, Nov 4 from Philadelphia to Porto, returning Thu, Nov 13, priced at $584 found 13 hours ago

Tue, Nov 4 - Thu, Nov 13

PHL

Philadelphia

OPO

Porto

$585 Roundtrip, found 13 hours ago

$585

Roundtrip

found 13 hours ago

Select United flight, departing Tue, Nov 4 from Philadelphia to Porto, returning Thu, Nov 13, priced at $585 found 13 hours ago

Tue, Nov 4 - Thu, Nov 13

PHL

Philadelphia

OPO

Porto

$589 Roundtrip, found 13 hours ago

$589

Roundtrip

found 13 hours ago

Select United flight, departing Tue, Nov 4 from Philadelphia to Porto, returning Thu, Nov 13, priced at $589 found 13 hours ago

Tue, Nov 4 - Tue, Nov 11

PHL

Philadelphia

OPO

Porto

$597 Roundtrip, found 13 hours ago

$597

Roundtrip

found 13 hours ago

Select United flight, departing Tue, Nov 4 from Philadelphia to Porto, returning Tue, Nov 11, priced at $597 found 13 hours ago

Tue, Nov 4 - Thu, Nov 13

PHL

Philadelphia

OPO

Porto

$605 Roundtrip, found 13 hours ago

$605

Roundtrip

found 13 hours ago

Select United flight, departing Tue, Nov 4 from Philadelphia to Porto, returning Thu, Nov 13, priced at $605 found 13 hours ago