What to expect from Southwest Airlines baggage service at the SEA Terminal? Southwest Airlines SEA Terminal features simple and hassle-free baggage servicing. Beyond one carry-on item and one personal item, two free checked bags are included for passengers, an airline industry first. Employees are available to assist during peak periods, and bag drop-off is fast and convenient. While ... https://www.terminalfind.com/southwest-airlines/southwest-airlines-sea-terminal-seattle-tacoma-international-airport/