BANGKOK, 28 April 2025: Thai Lion Air is expanding its route network with new international flights to Changsha, China and Surabaya, Indonesia, plus two domestic routes Bangkok (DMK) – Nakhon Phanom and Utapao (UTH) – Udon Thani in northeast Thailand.
The new services are scheduled to start from May to mid-June 2025 using Boeing 737-8 aircraft.
Domestic routes
The Bangkok (DMK)—Nakhon Phanom (KOP) route will commence with double daily flights on 19 June 2025.
SL670 departs Bangkok Don Mueang (DMK) at 0730 and arrives in Nakhon Phanom (KOP) at 0855.
SL674 departs Bangkok Don Mueang (DMK) at 1720 and arrives in Nakhon Phanom (KOP) at 1845.
SL671 departs Nakhon Phanom (KOP) at 0935 and arrives in Bangkok Don Mueang (DMK) at 1100.
SL675 departs Nakhon Phanom (KOP) at 1925 and arrives in Bangkok Don Mueang (DMK) at 2055.

Udon Thani (UTH) – U Tapao (UTP) every Monday, Wednesday, Friday, and Sunday starting 11 June 2568.
SL588 departs Udon Thani (UTH) at 1120 and arrives in U Tapao (UTP) at 1240.
SL589 departs U Tapao (UTP) at 1330 and arrives in Uthai Thani (UTH) at 1450.
International routes
Bangkok Don Mueang – Changsha, China. Direct daily flights start on 1 May 2025.
SL934 departs Bangkok Don Mueang (DMK) at 0920 and arrives in Changsha (CSX) at 1335.
SL935 depart Changsha (CSX) at 1435 and arrives in Bangkok Don Mueang (DMK) at 1650.
Bangkok Don Mueang – Surabaya (Indonesia). Flights are scheduled every Monday, Wednesday, and Friday, starting 30 May 2025.
SL268 departs Bangkok Don Mueang (DMK) at 1120 and arrives in Surabaya (SUB) at 1520.
SL269 departs Surabaya (SUB) at 1620 and arrives in Bangkok Don Mueang (DMK) at 2030.

Commenting on the new routes, the airline posted on its Facebook account that opening the direct routes, both domestic and international, “will make travel between regions and neighbouring countries more convenient and faster for travellers whether on business or visiting relatives.”