It's adjacent to Terminal B which is the main one in the middle so you use the same short term car parks. I wondered why a third terminal was not called 'C' which would be logical, but it became clear when I got there. Basically it's a barn. It's a big and new but still a barnwith no facilities at land side departures. It certainly has a temporary feel to it. The up side is it seems to work well with little queueing. Curiously my daughters flight from Gatwick arrived at terminal A and departed from Billi which caused us some confusion when she was heading back.