$593 Cheap United flights Washington (DCA) to Porto (OPO)

$593 Cheap United flights Washington (DCA) to Porto (OPO)

Prices were available within the past 7 days and start at $593 for one-way flights and $703 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Apr 23 - Fri, May 1

DCA

Washington

OPO

Porto

$703 Roundtrip, found 19 hours ago

$703

Roundtrip

found 19 hours ago

Select United flight, departing Thu, Apr 23 from Washington to Porto, returning Fri, May 1, priced at $703 found 19 hours ago

Thu, Apr 23 - Fri, May 1

DCA

Washington

OPO

Porto

$713 Roundtrip, found 19 hours ago

$713

Roundtrip

found 19 hours ago

Select United flight, departing Thu, Apr 23 from Washington to Porto, returning Fri, May 1, priced at $713 found 19 hours ago

Thu, Apr 23 - Fri, May 1

DCA

Washington

OPO

Porto

$719 Roundtrip, found 19 hours ago

$719

Roundtrip

found 19 hours ago

Select United flight, departing Thu, Apr 23 from Washington to Porto, returning Fri, May 1, priced at $719 found 19 hours ago

Thu, Apr 23 - Fri, May 1

DCA

Washington

OPO

Porto

$903 Roundtrip, found 19 hours ago

$903

Roundtrip

found 19 hours ago

Select United flight, departing Thu, Apr 23 from Washington to Porto, returning Fri, May 1, priced at $903 found 19 hours ago

Thu, Apr 23 - Fri, May 1

DCA

Washington

OPO

Porto

$913 Roundtrip, found 19 hours ago

$913

Roundtrip

found 19 hours ago

Select United flight, departing Thu, Apr 23 from Washington to Porto, returning Fri, May 1, priced at $913 found 19 hours ago

Thu, Apr 23 - Fri, May 1

DCA

Washington

OPO

Porto

$919 Roundtrip, found 19 hours ago

$919

Roundtrip

found 19 hours ago

Select United flight, departing Thu, Apr 23 from Washington to Porto, returning Fri, May 1, priced at $919 found 19 hours ago

Thu, Apr 23 - Fri, May 1

DCA

Washington

OPO

Porto

$932 Roundtrip, found 19 hours ago

$932

Roundtrip

found 19 hours ago

Select United flight, departing Thu, Apr 23 from Washington to Porto, returning Fri, May 1, priced at $932 found 19 hours ago

Thu, Apr 23 - Fri, May 1

DCA

Washington

OPO

Porto

$936 Roundtrip, found 19 hours ago

$936

Roundtrip

found 19 hours ago

Select United flight, departing Thu, Apr 23 from Washington to Porto, returning Fri, May 1, priced at $936 found 19 hours ago

Thu, Apr 23 - Fri, May 1

DCA

Washington

OPO

Porto

$944 Roundtrip, found 19 hours ago

$944

Roundtrip

found 19 hours ago

Select United flight, departing Thu, Apr 23 from Washington to Porto, returning Fri, May 1, priced at $944 found 19 hours ago