JB currently operates 11 gates at T6
(1, 2, 4, 7, 9, 10, 12, 14, 15, 16, 17), not all of which are at full capacity, boarding about 90 flights a day. There's another existing gate (3) that's not used for boarding. If extensions are built out, there's room for maybe another 2 on the north side. So T6
has an ultimate 14-gate capacity, or about 140 flights a day. The new T5
should be good for about 260 flights a day, and JetBlue has first dibs on T6
after the move, so who knows how many flights are eventually possible.