Seattle Sea-Tac Airport (SEA)
Airlines and Terminals

(Seattle, Washington - WA, USA)




Seattle Tacoma International Airport (SEA) is served by many domestic and international airlines, flying to and from Washington state, traveling to a range of worldwide destinations.

With one main terminal buildings, four concourse areas and two satellite terminals at SEA, airlines usually board from their designated area. Concourse A and the Central Terminal are currently undergoing expansion projects.

Terminal Information


Seattle's airport has one main terminal building with four separate concourse areas, all serving many different airlines.
  • Central Terminal - contains Concourse A (gates A1 to A14), Concourse B (gates B1 to B15), Concourse C (gates C9 to C20) and Concourse D (gates D1 to D11)
  • South Satellite Terminal - serves a large number of domestic / American and international airlines
  • North Satellite Terminal - serves American and Canadian airlines



The following shows the principal airlines that operate throughout the terminal building of Seattle Tacoma International Airport (SEA).

Airline customer information desks are to be found in Concourse C and D, as well as in the North Satellite. Staff are on hand to aid travelers with any queries.

Concourse A


  • American Airlines
  • Frontier Airlines
  • Frontier Airlines (Republic Airways
  • Hawaiian Airlines
  • JetBlue Airways
  • Sun Country Airlines
  • US Airways
  • Virgin America
  • Delta Air Lines

Concourse B


  • Delta Air Lines
  • Southwest Airlines
  • United Airlines
  • Alaska Airlines (Horizon Air[25]

Concourse C


  • Alaska Airlines (Horizon Air[25]
  • Alaska Airlines (SkyWest Airlines
  • Alaska Airlines

Concourse D


  • Alaska Airlines

North Satellite


  • Alaska Airlines
  • Air Canada
  • Air Canada Express (Jazz Air
  • United Express (SkyWest Airlines
  • United Airlines

South Satellite


  • All Nippon Airways
  • Asiana Airlines
  • British Airways
  • Condor
  • Delta Air Lines
  • Delta Connection (SkyWest Airlines
  • Emirates
  • EVA Air
  • Hainan Airlines
  • Icelandair
  • Korean Air
  • Lufthansa








Seattle Airport SEA

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