Luukkonen represented Finland in the U18 and U20 World Junior Championships. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ He won the gold again at the
2019 World Junior Ice Hockey Championships in a 3<unk>2 victory over Team USA and was named the media's pick for best goaltender of the tournament.