$738 Cheap United flights Boston (BOS) to Porto (OPO)

$738 Cheap United flights Boston (BOS) to Porto (OPO)

Prices were available within the past 7 days and start at $738 for one-way flights and $1,040 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jun 1 - Wed, Jun 10

BOS

Boston

OPO

Porto

$1,040 Roundtrip, just found

$1,040

Roundtrip

just found

Select United flight, departing Mon, Jun 1 from Boston to Porto, returning Wed, Jun 10, priced at $1,040 just found

Mon, Jun 1 - Wed, Jun 10

BOS

Boston

OPO

Porto

$1,045 Roundtrip, just found

$1,045

Roundtrip

just found

Select United flight, departing Mon, Jun 1 from Boston to Porto, returning Wed, Jun 10, priced at $1,045 just found