The game will be aired on VTV6 and OnSports+ channels.
Vietnam previously lost 0-2 against Thailand in the first leg of their semifinal on Thursday.
Both goals were scored by Thai skipper Chanathip Songkrasin in the 14th and 23rd minutes.
The Golden Stars must now beat Thailand by at least three goals in the second leg to meet Indonesia in the final next week.
Indonesia defeated Singapore 4-2 in their semifinal second leg on Saturday evening and advanced to the final with a 5-3 aggregate victory.
The ongoing AFF Championship, hosted by Singapore between December 5Â and January 1, 2022, is the delayed organization of the 2020 AFF Suzuki Cup, which was originally planned to take place at the end of last year but was pushed back due to the COVID-19 pandemic.
The contestants were divided into two groups.
Title defenders Vietnam, who claimed a 3-2 aggregate triumph over Malaysia in the 2018 AFF Suzuki Cup finale, were randomly selected for Group B alongside Malaysia, Indonesia, Cambodia, and Laos.
Group A included Thailand, Myanmar, the Philippines, Singapore, and Timor Leste.Â
The Golden Stars finished the group stage as Group B runners-up with ten points after four games and the War Elephants were Group A winners with 12 points.
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