A total of 4 teams competed in the knockout stage to decide the champions of the 2024 ASEAN Championship.
Vietnam won 5–3 on aggregate against Thailand in the final to win their third title.
The following teams advanced from the group stage: All matchup ties will be played over two legs.
The team that scores more goals on aggregate over the two legs wins the tie.
The top two sides of each group advanced to the knockout stages consisting of two-legged semi-finals and finals.