TransNusa Airlines operates at Terminal 3 at Singapore Changi Airport (SIN). If you're wondering what terminal is TransNusa Airlines at SIN, the answer is Terminal 3, which serves various international flights. Terminal 3 offers a wide range of amenities, including dining, shopping, and lounge options. Passengers flying with TransNusa Airlines can enjoy a comfortable and efficient experience in this modern terminal. For a seamless journey, head to Terminal 3 when flying with TransNusa at Singapore Changi Airport.