$359 Cheap American Airlines flights Seattle (SEA) to Porto (OPO)

View $359 flight on Wed, Feb 10, 2027Opens in a new window

$359 Cheap American Airlines flights Seattle (SEA) to Porto (OPO)

Prices were available within the past 7 days and start at $359 for one-way flights and $765 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Feb 10 - Tue, Feb 16
SEA
Seattle
OPO
Porto
$765 Roundtrip, found 6 hours ago
$765
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, Feb 10 from Seattle to Porto, returning Tue, Feb 16, priced at $765 found 6 hours ago
American Airlines
Wed, Feb 10 - Tue, Feb 16
SEA
Seattle
OPO
Porto
$851 Roundtrip, found 6 hours ago
$851
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, Feb 10 from Seattle to Porto, returning Tue, Feb 16, priced at $851 found 6 hours ago

Find the cheapest month to fly from Seattle (SEA) to Porto (OPO)

February is typically the cheapest month to fly

From $760 - $1,013 per traveler.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Dr. Francisco de Sa Carneiro
Airlines serving
Air Canada, Air France, American Airlines, British Airways, Delta, Iberia, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Popular airline
British Airways
Distance
8140 km

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