What is the airport code for Seattle?

The airport code for Seattle is SEA, which is the International Air Transport Association (IATA) code for Seattle-Tacoma International Airport. IATA codes are typically three-letter representations that help to uniquely identify airports globally. The correct code, SEA, is widely recognized within the aviation industry, making it essential for flight operations, ticketing, and baggage handling.

The other options do not correspond to Seattle's airport. SEAT and SET are not valid IATA codes for any major airports in Seattle or surrounding areas, while SLC specifically refers to Salt Lake City International Airport in Utah. Understanding these codes is vital for flight attendants, as navigating airport references accurately ensures smoother communication with both passengers and ground operations.