Dung left Vietnam on July 8 and will arrive in Moscow to attend the semi-final match between England and Croatia. He will return home on July 13.
The journey is part of a communications plan by the main sponsor of World Cup.
In addition to Bui Tien Dung, the sponsor also invited fellow Vietnamese footballers Le Cong Vinh and Ha Duc Chinh as well as other celebrities to watch the game.
Bui Tien Dung has become an idol for many young Vietnamese people after putting in a series of excellent performances at the 2018 AFC U23 Championships. He has taken part in many sidelines activities after the tournament.