$583 Cheap United flights Houston (IAH) to Porto (OPO)

$583 Cheap United flights Houston (IAH) to Porto (OPO)

Prices were available within the past 7 days and start at $583 for one-way flights and $750 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Oct 5 - Wed, Oct 22

IAH

Houston

OPO

Porto

$750 Roundtrip, found 1 day ago

$750

Roundtrip

found 1 day ago

Select United flight, departing Sun, Oct 5 from Houston to Porto, returning Wed, Oct 22, priced at $750 found 1 day ago

Mon, Oct 6 - Tue, Oct 21

IAH

Houston

OPO

Porto

$750 Roundtrip, found 1 day ago

$750

Roundtrip

found 1 day ago

Select United flight, departing Mon, Oct 6 from Houston to Porto, returning Tue, Oct 21, priced at $750 found 1 day ago

Mon, Oct 6 - Tue, Oct 21

IAH

Houston

OPO

Porto

$757 Roundtrip, found 1 day ago

$757

Roundtrip

found 1 day ago

Select United flight, departing Mon, Oct 6 from Houston to Porto, returning Tue, Oct 21, priced at $757 found 1 day ago

Sat, Oct 4 - Wed, Oct 22

IAH

Houston

OPO

Porto

$758 Roundtrip, found 1 day ago

$758

Roundtrip

found 1 day ago

Select United flight, departing Sat, Oct 4 from Houston to Porto, returning Wed, Oct 22, priced at $758 found 1 day ago

Sat, Oct 4 - Tue, Oct 21

IAH

Houston

OPO

Porto

$764 Roundtrip, found 1 day ago

$764

Roundtrip

found 1 day ago

Select United flight, departing Sat, Oct 4 from Houston to Porto, returning Tue, Oct 21, priced at $764 found 1 day ago

Wed, Oct 8 - Wed, Oct 22

IAH

Houston

OPO

Porto

$772 Roundtrip, found 1 day ago

$772

Roundtrip

found 1 day ago

Select United flight, departing Wed, Oct 8 from Houston to Porto, returning Wed, Oct 22, priced at $772 found 1 day ago

Mon, Oct 6 - Tue, Oct 21

IAH

Houston

OPO

Porto

$772 Roundtrip, found 1 day ago

$772

Roundtrip

found 1 day ago

Select United flight, departing Mon, Oct 6 from Houston to Porto, returning Tue, Oct 21, priced at $772 found 1 day ago

Mon, Oct 6 - Tue, Oct 21

IAH

Houston

OPO

Porto

$816 Roundtrip, found 1 day ago

$816

Roundtrip

found 1 day ago

Select United flight, departing Mon, Oct 6 from Houston to Porto, returning Tue, Oct 21, priced at $816 found 1 day ago