The SWISS A321-111 has 219 seats. The standard SWISS cabin layout is 54 Business Class and 183 Economy Class seats. Note that Business Class seating is the standard Euro Business 3-3 arrangement with the middle seat blocked for additional personal space (yielding 36 available seats for selection). The number of Business Class seats may increase or decrease depending on demand.
SWISS uses the aircraft type on flights within Europe, as well as, flights from Switzerland to Africa and the Near East.
