Cheap flights from Seattle to Lisbon

Looking for cheap flights from Seattle to Lisbon? We track round-trip fares from SEA to LIS around the clock and post the sharpest price drops here first. Flights from Seattle to Lisbon include a stop along the way, and the best sale fares tend to disappear within a day or two. Create a free account to see full deal details, or go Premium for an email alert the moment a Lisbon fare drops.

Lisbon, Portugal, is a captivating destination that seamlessly blends rich history with vibrant culture. Picture yourself riding a yellow tram as it climbs the steep, tiled streets of the old town, with the stunning Tagus River and the iconic 25 de Abril Bridge providing a breathtaking backdrop. The best times to visit are during the shoulder seasons of spring and fall, when the weather is pleasant and the crowds are thinner, making it easier to explore the city's charming neighborhoods. You’ll often find cheap flights from Seattle to Lisbon during these periods, as airlines typically offer better deals outside the peak summer months.

Traveling from Seattle (SEA) to Lisbon (LIS) generally requires one stopover, but with a bit of flexibility in your travel plans, you can discover excellent flight deals. To snag the best fares, it’s advisable to book your flights several months in advance, as prices tend to rise closer to the departure date. Keep an eye on fare sales during the off-peak season, and you could find great options for your journey to this enchanting European city.