Depsite carrying a 0-1 deficit after a first leg loss in Kuala Lumpur on Saturday (Jan 7), the War Elephants cruised to victory at Thammasat Stadium in Bangkok thanks to goals from Teerasil Dangda, Bordin Phala and Adisak Kraisorn.
It means the the six-time champions advance to their 10th final in 14 tournaments and will face Vietnam in a two-legged affair, with the first game in Hanoi on Friday (Jan 13) and the return leg in Bangkok next Monday.
Teerasil opened the scoring for Mano Polking’s side after just 19 minutes when he rose to head in Theerathon Bunmathan’s cross.
Bordin doubled the lead 10 minutes into the second half and substitute Adisak secured the result with a goal in the 71st minute.
The last time Thailand and Vietnam met in the final of this competition was in 2008 when Vietnam claimed a 3-2 aggregate win.