Terminal map with gates – SEA Airport

Sea-Tac is a large and modern airport, featuring one main terminal building divided into four concourses (A, B, C and D). There are also two satellite terminals, the North Satellite and South Satellite, which are accessible via an underground train system. You can find a map at the top of the page showing the layout of the airport and where to find the different terminals and gates.

Concourse A: This concourse is primarily used by Delta Air Lines and other members of the SkyTeam alliance. Here you find gates numbered between A1 and A14.

Concourse B: Concourse B is used by airlines such as Southwest Airlines and Spirit Airlines. Gates here are numbered B1 to B15.

Concourse C: Alaska Airlines is the primary airline in Concourse C, with gates C2 to C20.

Concourse D: Concourse D hosts various international and domestic carriers, including for example United Airlines. Gates in Concourse D range from D1 to D12.

North Satellite (N Gates): This terminal serves as an extension for Alaska Airlines, with gates numbered N1 to N16.

South Satellite (S Gates): The South Satellite handles most of the international flights, with airlines like British Airways and Emirates. Gates are numbered S1 to S12.