$839 Cheap United flights Porto (OPO) to Boston (BOS)

View $839 flight on Mon, May 18, 2026Opens in a new window

$839 Cheap United flights Porto (OPO) to Boston (BOS)

Prices were available within the past 7 days and start at $839 for one-way flights and $1,297 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, May 18 - Tue, May 19
OPO
Porto
BOS
Boston
$1,297 Roundtrip, found 4 days ago
$1,297
Roundtrip
found 4 days ago
Select United flight, departing Mon, May 18 from Porto to Boston, returning Tue, May 19, priced at $1,297 found 4 days ago

Find the cheapest month to fly from Porto (OPO) to Boston (BOS)

February is typically the cheapest month to fly

From $466 - $803 per traveler.
Flights from Porto (OPO) to Boston (BOS)
Origin airport
Dr. Francisco de Sa Carneiro
Destination airport
Logan Intl.
Distance
5019 km