A330 has 76.5t fuel which will take you (not including div fuel) over 6000 still air miles and over 12 hrs for a landing weight of 140000kg.
Some of the press releases I have seen have mentioned Cancun and Las Vegas. If this is so it lets the Upper and First pax subsidise the economy to give lower economy-punter prices to take on the charter companies (some of whom sometimes operate these routes on an A300-300 with no centre tanks.)
Last edited by beardy; 1st April 2010 at 07:50.