He received the first call-up from the national team coach Gianni De Biasi who declared that due to the absence of Edmond Kapllani, he had decided to call-up Llullaku to replace him for the match against Norway on 7 June 2013 and this due to his both-wings playing ability [REF].
In October 2016, after a three years absence, following a series of good performances with Gaz Metan Mediaș, Llullaku was called up again from De Biasi for the 2018 FIFA World Cup qualification matches against Liechtenstein and Spain [REF].