On 30 June 2023, Pittas was signed by AIK, where he signed a contract until 30 November 2025.[1] According to some information, AIK paid 800,000 euros for the player's signature.[2]
Pittas scored his first goal for the club in his debut when the team played 1–1 away against Kalmar FF.[3] On 24 September 2023, Pittas became a big derby hero for AIK when he scored both goals in a 2–0 win against arch-rivals Djurgårdens IF at Friends Arena.[4] In the final round of Allsvenskan 2023, Pittas scored a hat-trick in 14 minutes against IFK Värnamo, securing AIK's stay in the league for the 2024 season.[5] Pittas ended the season as the club's top scorer with nine goals in 13 Allsvenskan matches, despite the fact that he played fewer matches then the runner-up Rui Modesto with six goals.
On 5 May 2024, Pittas recorded two goals and two assists in a 6–2 win over IFK Norrköping at Friends Arena.[6]
^Two appearances in UEFA Champions League, two appearances and one goal in UEFA Europa League, six appearances and one goal in UEFA Europa Conference League