Westjet Airlines SEA Terminal , known as Sea-Tac Airport, in Seattle, Washington. SEA is the primary hub where WestJet operates its flights, offering connections to various destinations in North America and beyond. Passengers traveling with WestJet from SEA can expect modern facilities, efficient check-in processes, and amenities such as dining options, retail shops, and comfortable waiting areas. SEA Terminal ensures a convenient and pleasant experience for WestJet passengers, whether they are departing, arriving, or connecting flights within the United States or internationally.