[1] Before the end of the 2013–14 season Dounis agreed to join AEK Athens on a three-year contract, which was made effective on 1 July 2014.
[2] He made his debut on 29 August in 4–0 home win Fokikos for the Greek Cup.
[4] Despite the three-year duration of his contract, he was released on 11 September 2015, as he wasn't part of the team's plans.
[11] On 18 March 2018, Dounis came in as a substitute and scored a crucial 88th-minute equalizer with his first ever free-kick goal in a 1–1 away draw against Panachaiki.
[12] At the end of the season he celebrated promotion to the Superleague, before leaving the club, following the expiration of his contract.