Thai Airways International Public Company Limited, together with its subsidiaries, engages in the operation of airline business. It operates through three segments: Air Transportation Activities, Business Units, and Other Activities. The Air Transportation Activities segment provides composed of passenger, freight, and mail services.
The Business Units segments offers cargo and mail commercial, ground customer, ground handling and equipment, and catering services. The Other Activities segment is involved in the transportation supporting activities, which include dispatch services, sales on board, THAI shop, and technical services. The company is also involved in the provision of aviation training services; tourism business; and information technology for travel services.
As of December 31, 2019, it had a route network servicing to 62 destinations in 31 countries with 3 domestic destinations; and a fleet of 103 aircraft, including 32 owned aircraft, 32 aircraft under finance leases, and 39 aircraft under operating leases.