Hi..I will be connecting flight from dallas(DFW) to JFK (delta) for my international flight (emirates) back to singapore. The domestic flight ticket are purchased separtely online. So do I need to claim my luggage from JFK airport and then check in again for my flight back to singapore? The delta flight will arrive at JFK terminal 2 and the int'l flight departure is at terminal 3. Do I need to clear custom when travelling from T2 to T3?