$486 Cheap United flights Houston (IAH) to Porto (OPO)

$486 Cheap United flights Houston (IAH) to Porto (OPO)

Prices were available within the past 7 days and start at $486 for one-way flights and $650 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Nov 1 - Thu, Nov 13

IAH

Houston

OPO

Porto

$650 Roundtrip, found 17 hours ago

$650

Roundtrip

found 17 hours ago

Select United flight, departing Sat, Nov 1 from Houston to Porto, returning Thu, Nov 13, priced at $650 found 17 hours ago

Mon, Oct 27 - Tue, Nov 11

IAH

Houston

OPO

Porto

$651 Roundtrip, found 17 hours ago

$651

Roundtrip

found 17 hours ago

Select United flight, departing Mon, Oct 27 from Houston to Porto, returning Tue, Nov 11, priced at $651 found 17 hours ago

Thu, Oct 30 - Tue, Nov 11

IAH

Houston

OPO

Porto

$701 Roundtrip, found 17 hours ago

$701

Roundtrip

found 17 hours ago

Select United flight, departing Thu, Oct 30 from Houston to Porto, returning Tue, Nov 11, priced at $701 found 17 hours ago

Wed, Oct 29 - Wed, Nov 12

IAH

Houston

OPO

Porto

$768 Roundtrip, found 17 hours ago

$768

Roundtrip

found 17 hours ago

Select United flight, departing Wed, Oct 29 from Houston to Porto, returning Wed, Nov 12, priced at $768 found 17 hours ago

Wed, Oct 29 - Wed, Nov 12

IAH

Houston

OPO

Porto

$783 Roundtrip, found 17 hours ago

$783

Roundtrip

found 17 hours ago

Select United flight, departing Wed, Oct 29 from Houston to Porto, returning Wed, Nov 12, priced at $783 found 17 hours ago

Sat, Nov 1 - Fri, Nov 14

IAH

Houston

OPO

Porto

$785 Roundtrip, found 17 hours ago

$785

Roundtrip

found 17 hours ago

Select United flight, departing Sat, Nov 1 from Houston to Porto, returning Fri, Nov 14, priced at $785 found 17 hours ago