$825 Cheap United flights Washington (DCA) to Porto (OPO)

$825 Cheap United flights Washington (DCA) to Porto (OPO)

Prices were available within the past 7 days and start at $825 for one-way flights and $980 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, May 17 - Sun, May 24

DCA

Washington

OPO

Porto

$980 Roundtrip, found 1 day ago

$980

Roundtrip

found 1 day ago

Select United flight, departing Sun, May 17 from Washington to Porto, returning Sun, May 24, priced at $980 found 1 day ago

Sun, May 17 - Tue, May 26

DCA

Washington

OPO

Porto

$1,011 Roundtrip, found 1 day ago

$1,011

Roundtrip

found 1 day ago

Select United flight, departing Sun, May 17 from Washington to Porto, returning Tue, May 26, priced at $1,011 found 1 day ago

Sun, May 17 - Tue, May 26

DCA

Washington

OPO

Porto

$1,067 Roundtrip, found 1 day ago

$1,067

Roundtrip

found 1 day ago

Select United flight, departing Sun, May 17 from Washington to Porto, returning Tue, May 26, priced at $1,067 found 1 day ago

Sun, May 17 - Mon, May 25

DCA

Washington

OPO

Porto

$1,081 Roundtrip, found 1 day ago

$1,081

Roundtrip

found 1 day ago

Select United flight, departing Sun, May 17 from Washington to Porto, returning Mon, May 25, priced at $1,081 found 1 day ago

Sun, May 17 - Mon, May 25

DCA

Washington

OPO

Porto

$1,087 Roundtrip, found 1 day ago

$1,087

Roundtrip

found 1 day ago

Select United flight, departing Sun, May 17 from Washington to Porto, returning Mon, May 25, priced at $1,087 found 1 day ago

Sun, May 17 - Mon, May 25

DCA

Washington

OPO

Porto

$1,137 Roundtrip, found 1 day ago

$1,137

Roundtrip

found 1 day ago

Select United flight, departing Sun, May 17 from Washington to Porto, returning Mon, May 25, priced at $1,137 found 1 day ago

Sun, May 17 - Mon, May 25

DCA

Washington

OPO

Porto

$1,147 Roundtrip, found 1 day ago

$1,147

Roundtrip

found 1 day ago

Select United flight, departing Sun, May 17 from Washington to Porto, returning Mon, May 25, priced at $1,147 found 1 day ago

Sun, May 17 - Mon, May 25

DCA

Washington

OPO

Porto

$1,153 Roundtrip, found 1 day ago

$1,153

Roundtrip

found 1 day ago

Select United flight, departing Sun, May 17 from Washington to Porto, returning Mon, May 25, priced at $1,153 found 1 day ago

Sun, May 17 - Mon, May 25

DCA

Washington

OPO

Porto

$1,232 Roundtrip, found 1 day ago

$1,232

Roundtrip

found 1 day ago

Select United flight, departing Sun, May 17 from Washington to Porto, returning Mon, May 25, priced at $1,232 found 1 day ago