Seattle–Tacoma International Airport, also known as Sea-Tac Airport, is one of the United States' top twenty busiest airports. As a major hub in the West and a gateway to the Pacific Region in 2008, it served more than thirty-two million airline passengers. The airport is located in the city of SeaTac, Washington, twelve miles south of downtown Seattle, and twenty miles north of downtown Tacoma. It's easily accessed via State Route 518, State Route 99, and Interstate-5 is just a few miles to the east.
The Hub of the Northwest
Sea–Tac Airport is the largest hub for Alaska Airlines and Horizon Air. Together, they account for nearly half of the airport's daily flights. However, a total of more than two-dozen airlines serve the growing airport. Together they provide direct service to most major U.S. cities, and destinations in Canada, Mexico, Asia, and Europe. Southwest, United, and Delta (including Northwest Airlines) all have a major presence at Sea-Tac. Sea-Tac also has significant air cargo traffic.
Sea–Tac Airport has three parallel runways that run in a largely north-south direction, with a passenger terminal on the eastern side. The runways range in length from about 8,500 to 12,000 feet. In recent years, the airport added a third terminal, a third runway, and an air traffic control tower.
Passengers on departing and arriving flights may take an underground tram that provides access to the different terminals. The Port of Seattle operates the airport, and includes a police and fire department. For more information on the history of Sea-Tac Airport, see this page.