The Seattle-Tacoma International (Sea-Tac) Airport had its busiest year in 2025 with 52.6 million passengers traveling between 30 different airlines. During peak travel times, it was common to see ...
Sea-Tac Airport will open its newest security checkpoint on Friday, June 6. Checkpoint 1 is General Screening only, and will have five lanes. It is located on the Baggage Claim level near the ...