$475 Cheap United flights Baltimore (BWI) to Porto (OPO)

$475 Cheap United flights Baltimore (BWI) to Porto (OPO)

Prices were available within the past 7 days and start at $475 for one-way flights and $504 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Mar 3 - Wed, Mar 11

BWI

Baltimore

OPO

Porto

$504 Roundtrip, found 1 day ago

$504

Roundtrip

found 1 day ago

Select United flight, departing Tue, Mar 3 from Baltimore to Porto, returning Wed, Mar 11, priced at $504 found 1 day ago

Tue, Mar 3 - Thu, Mar 12

BWI

Baltimore

OPO

Porto

$509 Roundtrip, found 1 day ago

$509

Roundtrip

found 1 day ago

Select United flight, departing Tue, Mar 3 from Baltimore to Porto, returning Thu, Mar 12, priced at $509 found 1 day ago

Thu, Mar 5 - Wed, Mar 11

BWI

Baltimore

OPO

Porto

$554 Roundtrip, found 1 day ago

$554

Roundtrip

found 1 day ago

Select United flight, departing Thu, Mar 5 from Baltimore to Porto, returning Wed, Mar 11, priced at $554 found 1 day ago

Thu, Mar 5 - Thu, Mar 12

BWI

Baltimore

OPO

Porto

$559 Roundtrip, found 1 day ago

$559

Roundtrip

found 1 day ago

Select United flight, departing Thu, Mar 5 from Baltimore to Porto, returning Thu, Mar 12, priced at $559 found 1 day ago

Tue, Mar 3 - Mon, Mar 16

BWI

Baltimore

OPO

Porto

$560 Roundtrip, found 1 day ago

$560

Roundtrip

found 1 day ago

Select United flight, departing Tue, Mar 3 from Baltimore to Porto, returning Mon, Mar 16, priced at $560 found 1 day ago

Thu, Mar 5 - Mon, Mar 16

BWI

Baltimore

OPO

Porto

$610 Roundtrip, found 1 day ago

$610

Roundtrip

found 1 day ago

Select United flight, departing Thu, Mar 5 from Baltimore to Porto, returning Mon, Mar 16, priced at $610 found 1 day ago