A passenger tested positive for COVID-19 in the pre-security area of the terminal.
Two additional passengers tested positive for COVID-19 in the early hours of January 19, 2021, but both arrived at SEA on January 18, 2021.
The first passenger arrived on Alaska Airlines flight 2215 from Boise, and moved through concourse C, bag claim and the international ticketing area.
The second passenger arrived on American Airlines flight 1887 from DFW, and moved through concourse D, bag claim and the international ticketing area.
