Arar was a member of the junior national teams of Turkey. With Turkey's junior national teams, he played at the following tournaments: the 2012 FIBA Europe Under-16 Championship, where he won a gold medal, the 2014 FIBA Europe Under-18 Championship, where he won a gold medal, the 2015 FIBA Under-19 World Championship, where he won a bronze medal, the 2015 FIBA Europe Under-20 Championship, where he won a bronze medal, and the 2016 FIBA Europe Under-20 Championship, where he won a bronze medal.