A custodial employee tested positive for COVID-19 and last worked on January 20 on Concourse A.
Three passengers tested positive for COVID-19 in the early hours of January 21, 2021, but all arrived at SEA on January 20, 2021.
The first passenger arrived on from Dallas/Fort Worth International Airport (DFW), and spent time near the international ticketing area.
The second passenger arrived on Delta Air Lines flight 701 from San Diego, and moved through concourse B, bag claim and the international ticketing area.
The third passenger arrived on Southwest flight WN1900 from Las Vegas, and moved through concourse B, bag claim and the international ticketing area.
