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

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

Prices were available within the past 7 days and start at for one-way flights and $505 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Apr 20 - Tue, May 5

BWI

Baltimore

OPO

Porto

$505 Roundtrip, found 1 day ago

$505

Roundtrip

found 1 day ago

Select United flight, departing Mon, Apr 20 from Baltimore to Porto, returning Tue, May 5, priced at $505 found 1 day ago

Mon, Apr 20 - Fri, May 8

BWI

Baltimore

OPO

Porto

$516 Roundtrip, found 1 day ago

$516

Roundtrip

found 1 day ago

Select United flight, departing Mon, Apr 20 from Baltimore to Porto, returning Fri, May 8, priced at $516 found 1 day ago

Sat, Apr 18 - Fri, May 8

BWI

Baltimore

OPO

Porto

$526 Roundtrip, found 1 day ago

$526

Roundtrip

found 1 day ago

Select United flight, departing Sat, Apr 18 from Baltimore to Porto, returning Fri, May 8, priced at $526 found 1 day ago

Mon, Apr 20 - Wed, May 13

BWI

Baltimore

OPO

Porto

$535 Roundtrip, found 1 day ago

$535

Roundtrip

found 1 day ago

Select United flight, departing Mon, Apr 20 from Baltimore to Porto, returning Wed, May 13, priced at $535 found 1 day ago

Sat, Apr 25 - Wed, May 13

BWI

Baltimore

OPO

Porto

$546 Roundtrip, found 1 day ago

$546

Roundtrip

found 1 day ago

Select United flight, departing Sat, Apr 25 from Baltimore to Porto, returning Wed, May 13, priced at $546 found 1 day ago

Tue, Apr 21 - Fri, Apr 24

BWI

Baltimore

OPO

Porto

$546 Roundtrip, found 1 day ago

$546

Roundtrip

found 1 day ago

Select United flight, departing Tue, Apr 21 from Baltimore to Porto, returning Fri, Apr 24, priced at $546 found 1 day ago

Mon, Apr 20 - Sat, May 2

BWI

Baltimore

OPO

Porto

$555 Roundtrip, found 1 day ago

$555

Roundtrip

found 1 day ago

Select United flight, departing Mon, Apr 20 from Baltimore to Porto, returning Sat, May 2, priced at $555 found 1 day ago

Sat, Apr 25 - Tue, May 12

BWI

Baltimore

OPO

Porto

$557 Roundtrip, found 1 day ago

$557

Roundtrip

found 1 day ago

Select United flight, departing Sat, Apr 25 from Baltimore to Porto, returning Tue, May 12, priced at $557 found 1 day ago

Mon, Apr 20 - Mon, May 11

BWI

Baltimore

OPO

Porto

$595 Roundtrip, found 1 day ago

$595

Roundtrip

found 1 day ago

Select United flight, departing Mon, Apr 20 from Baltimore to Porto, returning Mon, May 11, priced at $595 found 1 day ago

Sat, Apr 25 - Sat, May 2

BWI

Baltimore

OPO

Porto

$596 Roundtrip, found 1 day ago

$596

Roundtrip

found 1 day ago

Select United flight, departing Sat, Apr 25 from Baltimore to Porto, returning Sat, May 2, priced at $596 found 1 day ago

Wed, Apr 15 - Tue, May 5

BWI

Baltimore

OPO

Porto

$601 Roundtrip, found 1 day ago

$601

Roundtrip

found 1 day ago

Select United flight, departing Wed, Apr 15 from Baltimore to Porto, returning Tue, May 5, priced at $601 found 1 day ago

Sat, Apr 25 - Mon, May 11

BWI

Baltimore

OPO

Porto

$606 Roundtrip, found 1 day ago

$606

Roundtrip

found 1 day ago

Select United flight, departing Sat, Apr 25 from Baltimore to Porto, returning Mon, May 11, priced at $606 found 1 day ago