$583 Cheap United flights Portland (PDX) to Porto (OPO)

View $583 flight on Sun, May 3, 2026Opens in a new window

$583 Cheap United flights Portland (PDX) to Porto (OPO)

Prices were available within the past 7 days and start at $583 for one-way flights and $1,421 for roundtrip, for the period specified. Prices and availability are subject to change. Additional terms apply.
United
Sun, May 3 - Fri, May 8
PDX
Portland
OPO
Porto
$1,421
Roundtrip
Found 1 day ago
Select United flight, departing Sun, May 3 from Portland to Porto, returning Fri, May 8, priced at $1,421 Found 1 day ago
United
Sun, May 3 - Fri, May 8
PDX
Portland
OPO
Porto
$1,448
Roundtrip
Found 1 day ago
Select United flight, departing Sun, May 3 from Portland to Porto, returning Fri, May 8, priced at $1,448 Found 1 day ago
United
Sun, May 3 - Fri, May 8
PDX
Portland
OPO
Porto
$1,467
Roundtrip
Found 1 day ago
Select United flight, departing Sun, May 3 from Portland to Porto, returning Fri, May 8, priced at $1,467 Found 1 day ago
United
Sun, May 3 - Fri, May 8
PDX
Portland
OPO
Porto
$1,521
Roundtrip
Found 1 day ago
Select United flight, departing Sun, May 3 from Portland to Porto, returning Fri, May 8, priced at $1,521 Found 1 day ago
United
Sun, May 3 - Fri, May 8
PDX
Portland
OPO
Porto
$1,567
Roundtrip
Found 1 day ago
Select United flight, departing Sun, May 3 from Portland to Porto, returning Fri, May 8, priced at $1,567 Found 1 day ago
United
Sun, May 3 - Fri, May 8
PDX
Portland
OPO
Porto
$1,594
Roundtrip
Found 1 day ago
Select United flight, departing Sun, May 3 from Portland to Porto, returning Fri, May 8, priced at $1,594 Found 1 day ago
Flights from Portland (PDX) to Porto (OPO)
Origin airport
Portland Intl.
Destination airport
Dr. Francisco de Sa Carneiro
Distance
8299 km