Originfacts
Seattle-Tacoma International Airport
North America· United States· America/Los_Angeles

Seattle-Tacoma International Airport

Seattle-Tacoma International Airport, commonly known as Sea-Tac, lies approximately 22 kilometers south of downtown Seattle in the city of SeaTac, Washington. It serves as the primary international gateway for the Pacific Northwest region of the United States. The airport opened in 1949, built to replace Boeing Field as the area's main commercial airport, and has since grown into one of the busiest in North America.

IATA · SEAICAO · KSEAServing Seattle
City served
Seattle
Time zone
America/Los_Angeles
Coordinates
47.440°, -122.300°
Address
17801 International Boulevard, Seattle, Washington, 98158, United States

About Seattle-Tacoma International Airport

Seattle-Tacoma International Airport, commonly known as Sea-Tac, lies approximately 22 kilometers south of downtown Seattle in the city of SeaTac, Washington. It serves as the primary international gateway for the Pacific Northwest region of the United States. The airport opened in 1949, built to replace Boeing Field as the area's main commercial airport, and has since grown into one of the busiest in North America.

Terminals and runway snapshot

Sea-Tac operates a single main terminal with multiple concourses and two satellite buildings connected by an underground transit system. The North Satellite handles primarily domestic flights, while the South Satellite is dedicated to international arrivals and departures. The airport has three parallel north-south runways and operates 24 hours a day. Ongoing expansion projects continue to modernize concourses and improve international processing.

Overview

Seattle-Tacoma International Airport, commonly known as Sea-Tac, lies approximately 22 kilometers south of downtown Seattle in the city of SeaTac, Washington. It serves as the primary international gateway for the Pacific Northwest region of the United States. The airport opened in 1949, built to replace Boeing Field as the area's main commercial airport, and has since grown into one of the busiest in North America.

Airlines

Sea-Tac is a major hub for Alaska Airlines, which is headquartered in the Seattle area, and serves as a significant hub for Delta Air Lines. Numerous international carriers operate here, including British Airways, Lufthansa, Air France, Emirates, Korean Air, and All Nippon Airways, connecting the Pacific Northwest with Europe, Asia, and the Middle East.

Airlines

Airlines flying from SEA

11 carriers

Routes

Top routes from SEA

3 routes

Nearby airports

Other airports in United States

Compare alternate arrival points

FAQ

Seattle-Tacoma International Airport — frequently asked questions

Quick answers to the details travellers usually check first, from codes and locations to the practical basics that help with planning.

9 common questions

Where is Seattle-Tacoma International Airport?+
Seattle-Tacoma International Airport is located in Seattle, United States (North America), at coordinates 47.440°, -122.300°.
What is the airport code for Seattle-Tacoma International Airport?+
Its IATA code is SEA and its ICAO code is KSEA.
Which city does SEA serve?+
Seattle-Tacoma International Airport serves Seattle, United States. When comparing fares, check whether other airports also serve the same area — prices and transfer times can differ between them.
What time zone is SEA in?+
Seattle-Tacoma International Airport operates on America/Los_Angeles local time. Departure and arrival times on tickets are always shown in each airport's local time, so double-check the offset when planning connections or pick-ups.
How do I find Seattle-Tacoma International Airport on a map?+
Seattle-Tacoma International Airport sits at latitude 47.440° and longitude -122.300°. The map link in the details panel on this page opens the exact location for driving directions.
Which airlines fly from SEA?+
Carriers tracked on routes from SEA include American Airlines, Alaska Airlines, Etihad Airways, Gulf Air, Royal Jordanian, United Airlines and 5 more.
Where can you fly from SEA?+
Tracked destinations from SEA include Chicago, San Francisco and Los Angeles.
How do I contact Seattle-Tacoma International Airport?+
Its address is 17801 International Boulevard, Seattle, Washington, 98158, United States, the phone number is +1 206-787-5388, the official website is http://www.portseattle.org/Sea-Tac. For flight-specific questions (delays, baggage, rebooking), contact the operating airline directly rather than the airport.
Are there other airports in United States?+
Yes — Originfacts lists 9 other airports in United States. The nearby-airports section on this page links to each of them, which is useful when comparing fares or finding an alternative departure point.