Northwest Seaplanes offers Seattle Tour Flights from south Lake Washington, scheduled and charter flights to the San Juan Islands and British Columbia's Inside Passage. Looking for a tour of Seattle? We offer exclusive charter tours of Seattle. Ideal for groups of four to six passengers. Since 1988. Friday Harbor Seaplanes offers daily scheduled flights to and from South Lake Washington and San Juan Island. We are conveniently located just 15 minutes from Sea Tac Airport and have shuttle service available between our location and Sea Tac. Whether you are travelling up to Friday Harbor for a stay or day trip, we offer a scenic 50 minute seaplane connection. Tour Flights options are also available from Friday Harbor.