Much attention is given to aircraft jam-packed with premium seats. But what about large aircraft crammed with economy seats? Cebu Pacific crams in 459 seats on its A330-900s, while several a350 operators have tight economy classes with 10-abreast seating. Staying on this theme, we have Air Canada’s 450-seat Boeing 777-300ERs. Some operators fit even more seats in their 777s as some have over 500.