Thai Airways Company or Thai Airways (TAC; ) was the domestic flag carrier of Thailand. Its main base was the domestic terminal (Terminal 3) at Don Mueang International Airport (then known as Bangkok International Airport). Its head office was located in Pom Prap Sattru Phai, Bangkok. In 1988 Thai Airways merged to become Thai Airways International (). History Siamese Airways Company Limited was the domestic flag carrier of Thailand on March 1, 1947, according to a cabinet resolution. The first squadron had Douglas DC-3, Beechcraft C-45, L-5 Sentinel, Rearwin, Fairchild. The first flight was Bangkok-Phitsanulok-Lampang-Chiang Mai and began a Chiang Mai-Mae Sariang-Mae Hong Son two days later. The first international flight, a Bangkok-Songkhla-Penang service, was in December 1947. The Government of Thailand issued a resolution on November 1, 1951, merging Siamese Airways with Pacific Overseas Airline (Siam) Limited (POAS), forming Thai Airways Company Limited (TAC) ( (บดท)). It was also known as Thai Airways. Thai Airways established the international flag carrier in 1960, Thai Airways International Company Limited (THAI; ), as a joint venture between Scandinavian Airlines System (SAS) with the Scandinavian carrier initially providing a 30% share capital of two million Baht. Thai Airways bought the turboprop Avro 748 in 1963, the jet Boeing 737-200 in 1977, Short 330 in 1982, Short 360 and Airbus A310-200 in 1985. On April 1, 1988, Thai Airways Company Limited (TAC) merged with Thai Airways International, under the cabinet resolution, single national airline of the Kingdom of Thailand, as authorized by General Prem Tinsulanonda, Prime Minister at the time. Thai Airways's 11 aircraft, consisted of 3 Boeing 737-200, 4 Short 330, 2 Short 360 and 2 Airbus A310-200, combined fleet with Thai Airways International, total up 41 aircraft. Airline codes changed to Thai Airways International's airline codes at the end of 1988. Thai Airways International operates the Larn Luang Office, the former Thai Airways Company head office, in Pom Prap Sattru Phai. Destinations Domestic Destinations of Thailand: from/to Bangkok – Don Mueang International Airport Chiang Mai – Chiang Mai International Airport Chiang Rai – Chiang Rai International Airport Hat Yai – Hat Yai International Airport (formerly destination as Songkhla) Khon Kaen – Khon Kaen Airport Lampang – Lampang Airport Phitsanulok / Uttaradit – Phitsanulok Airport Phuket – Phuket International Airport Nakhon Sawan – Nakhon Sawan Airport Nakhon Si Thammarat – Nakhon Si Thammarat Airport Sakon Nakhon – Sakon Nakhon Airport Surat Thani –