The 2018 season was Lillestrøm's 43rd consecutive, and final, year in Eliteserien. Lillestrøm finished the season in 14th position, entering the Relegation play-offs where they were defeated on away goals by IK Start after the two-legged affair ended 5-5. In the Norwegian Cup, Lillestrøm reached the Third Round before defeat to Strømmen.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
In:
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
Out:
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
In:
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
Out:
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
Source: Football Association of Norway(in Norwegian), Soccerway Rules for classification: 1) Points; 2) Goal difference; 3) Goals scored; 4) Head-to-head points; 5) Head-to-head goal difference; 6) Head-to-head away goals scored (only if between two teams); 7) Head-to-head goals scored; 8) Play-off (only used to decide champions or relegation).[16] (R) Relegated