Generally, an Airbus A330 plane can fit between 240 to 295 passengers depending on how the seats are placed and oriented. As of 2015, the number of seats inside an Airbus A330 varies depending on the type of A330 it is and the airline to which it belongs.
Delta Airlines' Airbus A330-300 has a seating capacity of 293 while its A330-200 aircraft can sit up to 234 passengers. Alternatively, Air Canada's A330-300 aircraft has a total seat capacity of 265, 37 of which are assigned to international business class. The flight range of the A330-300 and A330-200 models were tested with passenger counts of 277 and 247, respectively.