In the summer of 1991 he transferred to AEK. He was a member of the great AEK team that won the Alpha Ethniki championship in 1992, 1993 and 1994. In 1992 and 1993, he won top scorer honours with 27 and 33 goals respectively. He returned to Aris in December 1996, ending his career with 130 top-league goals.
Dimitriadis was capped 28 times by the Greek National Football Team scoring 2 goals.