Abdullahu began his career in the youth team of the Kosovo Superleague club Llapi.
[2] On 1 September 2023, Abdullahu joined Kategoria Superiore side Tirana after agreeing to a five-year deal,[3] to replace the injured Gentian Selmani as the first choice.
[6] On 5 September 2024, Abdullahu joined Kosovo Superleague side Malisheva, on a season-long loan.
[12] However, on 11 November 2023, Abdullahu received a call-up from Kosovo U21 for the UEFA Euro 2025 qualification matches against Bulgaria and Israel.
[13] His debut with Kosovo U21 came ten days later in the UEFA Euro 2025 qualification match against Israel after coming on as a substitute at 46th minute in place of Altin Gjokaj.