Years ago there was a YHZ-BDA flight on Saturday. The people in BDA really miss those flights as many students go to school in YHZ. There is also a long historical connection between the two locations. I also see many people from YHZ who wish the BDA flight was back. To fly away from your destination then turn around in YYZ to backtrack seems foolish, but that is the hub/spoke model the air industry now follows.