What Terminal is Thai Airways at MNL? Thai Airways operates from Terminal 3 at Ninoy Aquino International Airport (MNL). Terminal 3 is the newest and most modern terminal, offering a smooth and comfortable experience for all passengers. Travelers flying with Thai Airways can expect efficient check-in counters, organized boarding gates, and helpful airport staff. The terminal also features amenities such as dining options, duty-free shops, lounges, and free Wi-Fi access. Arrivals and departures are managed seamlessly, ensuring convenience and reliability.