Seattle, USA → Porto, Portugal

January 24, 2026

Seattle to Porto, Portugal for only $487 roundtrip

Cheap flights from Seattle to Porto, Portugal for only $487 roundtrip with United Airlines and Lufthansa.

November 26, 2025

San Diego or Seattle to Lisbon or Porto, Portugal from only $434 roundtrip

Cheap flights from San Diego or Seattle to Lisbon or Porto, Portugal from only $434 roundtrip with British Airways.