"The European planemaker is developing the 550-seat A380 to
break Boeing Co.'s monopoly in commercial aircraft seating more
than 400 people. Boeing's 747 model, which began flying in 1970,
has been the only passenger plane until now capable of carrying 400 people or more. "
For what it's worth, the B777-300 in 2 classes seats in excess of 400, 435 I believe in Emirates configuration. Pretty good for 2 engines.
By the way, haven't some of the UK charter outfits figured out some way to fit 400+ in a 757?
