Thai Airways International Carry-on Luggage Rules
Thai Airways International allows each passenger one carry-on bag. The dimensions of the carry-on luggage must not exceed 56.0 × 45.0 × 25.0 cm (approx 22 × 17.5 × 9.5 in), and the weight must not exceed 7.0 kg (15 lb). Thai Airways International is strict about its carry-on baggage allowance and may weigh your cabin baggage to ensure compliance.
In addition to your carry-on bag, you may bring one personal item free of charge. Acceptable personal items include a handbag, laptop bag, camera, or coat. The personal hand luggage size is 37.5 × 25.0 × 12.5 cm (approx 14.5 × 9.5 × 4.5 in) First Class and Business Class passengers may be allowed to carry two cabin bags, each weighing between 7.0 kg (15 lb).