Sea-Tac International Airport

Sea-Tac Location Sea-Tac International Airport is the major airport serving Washington State.

Tacoma is just 18 miles south of the Sea-Tac International Airport with easy access from Interstate-5. Visit Sea-Tac International Airport for information on parking, airlines and passenger services.

Driving Directions

From the north via Interstate-5: Take Interstate-5 to exit 154 B and drive west on State Route 518 to the Sea-Tac International Airport exit.
From the north via State Highway 99: Take 99 south. At the First Avenue Bridge stay right and follow State Route 509 south to State Route 518 exit [Burien, Sea-Tac Airport]. Turn left onto 518 and take the Sea-Tac International Airport exit.
From the south: Take Interstate-5 to exit 154 and drive west on State Route 518 to the Sea-Tac International Airport exit.
From the east: Take Interstate-405, which turns into State Route 518, to the Sea-Tac International Airport exit.

Public Transit/Shuttle from Sea-Tac Airport to Pierce County

Direct Connection: Pierce Transit’s Route 574 provides a convenient and affordable ride straight from Seattle-Tacoma International Airport (Sea-Tac) into Pierce County, serving destinations including Tacoma Dome Station, and Lakewood, making it an easy gateway to the heart of the county. Fare is currently (2025) $3 for adults (19-64), free for youth 18 and under, and connects to your ORCA card. Buses leave approximately every half hour, but check the 574 schedule for more information.

From Tacoma Dome Station, you can connect to several other routes, including the Sounder Commuter Train, and the Tacoma Link Light Rail (also called the T-Line) with access to downtown Tacoma, the Theater District, Stadium District, and Hilltop.

Affordable Travel: A budget-friendly option compared to shuttles or rideshares, ideal for both solo travelers and families.
Frequent Service: The bus runs throughout the day with multiple departures, so you can land and be on your way without long waits.
Connections: At Tacoma Dome Station, riders can connect to local Pierce Transit buses, the Sounder Train, and the Tacoma Link light rail for seamless travel across the region.

Learn more and see the full schedule here: Sound Transit Route 574

Airport Street Address

Main Terminal Building
17801 International Blvd. [Pacific Hwy. S.]
Seattle, WA 98158

TSA Precheck

TSA Precheck lane availability is posted for Sea-Tac, so enter your dates of travel here to see if the lanes will be open. And if you’re not already enrolled in TSA Precheck, you can enroll at Sea-Tac or any of the other nearly 400 enrollment centers in the US. Learn more and apply here.

Sea-Tac Airport Parking

There are several options for parking at Sea-Tac Airport, including valet lots, outdoor parking and garaged parking. Most offer regular shuttles from the terminal to their lots. Popular options include:

Doug Fox Airport Parking

The Port of Seattle also offers discounts on airport parking on their site.