Seattle Air Route Traffic Control Center


The Seattle Air Route Traffic Control Center is the area control center responsible for controlling and ensuring proper separation of IFR aircraft in Washington state, most of Oregon, and parts of Idaho, Montana, Nevada, and California, as well as the neighboring area into the Pacific Ocean. Seattle Center is the 19th busiest of the 22 ARTCCs in the United States. In 2024, Seattle Center handled 1,174,034 aircraft.
The control center is located at 3101 Auburn Way S, Auburn, Washington, which is 11.5 miles from Seattle–Tacoma International Airport, the only Class B airport served by the center. The center was moved from Sea-Tac to a three-story facility in Auburn in August 1962. The Auburn facility was the first to replace its radar systems with digital displays in 1999.

Airports served

Class B

Class C

The following Class C airports in the Seattle ARTCC have continuously operating control towers:

Class D

The following are Class D airports in the Seattle ARTCC. Those with continuously operating control towers are italicized.

Class E

The following airports in the Seattle ARTCC airspace are nontowered, Class E airports: