lammikko was drafted 43rd overall by the kingston frontenacs of the ontario hockey league in the 2014 chl import draft. in his first game with the frontenacs, lammikko scored his first career ohl goal against jason da silva of the peterborough petes, and added two assists, in a 5-3 victory. overall, lammikko appeared in 64 games with kingston, scoring 18 goals and 44 points, and had a team high +23 rating. in the playoffs, lammikko had a goal and two points in four games.