Seattle Tacoma International Airport (Sea-Tac)

Airport Information

Seattle Tacoma International Airport (Sea-Tac)

Seattle–Tacoma International Airport also referred to as Sea–Tac Airport or Sea–Tac is the primary commercial airport serving the Seattle metropolitan area in the U.S. state of Washington. It is in the city of SeaTac, approximately 14 miles (23 km) south of Downtown Seattle and 18 miles (29 km) north-northeast of Downtown Tacoma. The airport, the largest in the Pacific Northwest region of North America, is between Portland, Oregon, and Vancouver, British Columbia, and owned by the Port of Seattle.

The airport was built by the Port of Seattle in 1944 after the U.S. military took control of Boeing Field in World War II. The first scheduled airline flights were Northwest and Trans-Canada in 1947; Western and United moved from Boeing Field in the next couple of years, and Pan Am moved in 1952–53, but West Coast and successors Air West and Hughes Airwest stayed at Boeing Field until 1971. The original terminal was designed by architect Herman A. Moldenhour. The official opening ceremony took place on July 9, 1947 in front of a crowd of 30,000.

Today the airport has flights to cities throughout North America, Europe, the Middle East, and Asia. It is the primary hub for Alaska Airlines, whose headquarters are near the airport. It is also a hub and international gateway to Asia for Delta Air Lines, which has expanded at the airport since 2011. Thirty-four airlines serve 91 non-stop domestic and 28 international destinations.


Airport News

Multi-User, All-Gender Restroom Opens at SEA to Increase Restroom Capacity and Options for Travelers

Seattle-Tacoma International Airport (SEA) has marked the opening of its first multi-user, all-gender restroom to give guests more flexibility and accessibility to restrooms that fit their travel needs. While some U.S. airports offer a single-stall …

HOK and Hensel Phelps Lead Seattle-Tacoma International Airport’s North Main Terminal Modernization

The SEA Gateway Project, a transformation of a key part of the terminal at Seattle-Tacoma International Airport, aims to accommodate increased passenger demand while elevating the travel experience at this Pacific Northwest hub. HOK and general …

New Bites, Coffee Brews, and Businesses Open at N Concourse at SEA Airport

SEA welcomes new dining and retail partners, including first Costa Coffee retail store at a US airport The redesigned N Concourse at Seattle-Tacoma International (SEA) Airport is now home to nine new options for travelers to …


Seattle Tacoma International Airport
17801 International Blvd
United States
WA 98158
  • +1 206-787-5388