At Seattle-Tacoma International Airport (SEA), the Delta Airlines SEA Terminal is situated in Terminal S (South Satellite). The airport's underground train system allows Delta passengers to enter the terminal, making terminal transfers quick and simple. Terminal S offers a variety of dining and shopping alternatives, as well as contemporary check-in counters and effective TSA screenin... https://airlinesairportterminals.com/delta-airlines/delta-airlines-sea-terminal-seattle-tacoma-international-airport/