Alaska Airline City Codes Practice 2026 – The All-In-One Guide to Master Your City Codes Exam!

The city code SEA is widely recognized as the airport identifier for Seattle, Washington, specifically Seattle-Tacoma International Airport. This code is part of the IATA (International Air Transport Association) system, which assigns unique three-letter identifiers to airports around the world.

Seattle is a major city in the Pacific Northwest and serves as a significant hub for Alaska Airlines, contributing to the association of SEA with this city. In contrast, other cities such as San Francisco, Portland, and Boise have their own distinct airport codes—SFO, PDX, and BOI, respectively—thereby reinforcing the uniqueness of SEA as it pertains specifically to Seattle. Familiarity with these codes is essential for travelers and airline operations alike, as it facilitates streamlined communication and information dissemination regarding flight destinations. Understanding these airport codes will enhance navigation through airline systems and improve travel planning.