Enregistrement Terminal Vietnam Airlines. Excess baggage can be purchased at Vietnam Airlines' check-in counters. Excess baggage fee . a. Excess baggage. Vietnam Airlines offers excess baggage with 10kg/22lb and 23kg/50lb. The total dimension of the excess baggage must not exceed 158cm/62in. Passengers can read the fee here. b. Overweight piece . Passengers can read the fee here. c ...