$429 Cheap United flights Baltimore (BWI) to Porto (OPO)

$429 Cheap United flights Baltimore (BWI) to Porto (OPO)

Prices were available within the past 7 days and start at $429 for one-way flights and $597 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Aug 19 - Thu, Aug 28

BWI

Baltimore

OPO

Porto

$597 Roundtrip, found 1 day ago

$597

Roundtrip

found 1 day ago

Select United flight, departing Tue, Aug 19 from Baltimore to Porto, returning Thu, Aug 28, priced at $597 found 1 day ago

Thu, Aug 21 - Thu, Aug 28

BWI

Baltimore

OPO

Porto

$657 Roundtrip, found 1 day ago

$657

Roundtrip

found 1 day ago

Select United flight, departing Thu, Aug 21 from Baltimore to Porto, returning Thu, Aug 28, priced at $657 found 1 day ago

Wed, Aug 20 - Thu, Aug 28

BWI

Baltimore

OPO

Porto

$670 Roundtrip, found 1 day ago

$670

Roundtrip

found 1 day ago

Select United flight, departing Wed, Aug 20 from Baltimore to Porto, returning Thu, Aug 28, priced at $670 found 1 day ago

Fri, Aug 22 - Thu, Aug 28

BWI

Baltimore

OPO

Porto

$688 Roundtrip, found 1 day ago

$688

Roundtrip

found 1 day ago

Select United flight, departing Fri, Aug 22 from Baltimore to Porto, returning Thu, Aug 28, priced at $688 found 1 day ago

Tue, Aug 19 - Wed, Aug 27

BWI

Baltimore

OPO

Porto

$697 Roundtrip, found 1 day ago

$697

Roundtrip

found 1 day ago

Select United flight, departing Tue, Aug 19 from Baltimore to Porto, returning Wed, Aug 27, priced at $697 found 1 day ago

Thu, Aug 21 - Wed, Aug 27

BWI

Baltimore

OPO

Porto

$757 Roundtrip, found 1 day ago

$757

Roundtrip

found 1 day ago

Select United flight, departing Thu, Aug 21 from Baltimore to Porto, returning Wed, Aug 27, priced at $757 found 1 day ago