On Tuesday Duong Ngoc Tien was collecting luggage trolleys in the domestic arrivals area when he saw a gray suitcase a passenger had left behind on one of them and informed security.
Security officers checked the suitcase and found VND1 billion in it and handed it over to the lost and found division, who returned it to the passenger the same evening.
Airport authorities on Wednesday recommended that the Airports Corporation of Vietnam should reward Tien for his honesty.
A spokesperson said that in the last year, staff had found and returned money and belongings passengers left behind on aircraft and terminals worth a total of VND1.4 billion.
On Monday security staff at Hanoi's Noi Bai Airport discovered a bag containing nearly VND1.2 billion near a luggage carousel and returned it to the owner.