Compare the respective flight schedules of AC and WS between YYZ and YHZ. Is WS an effective alternate choice than AC on this route, especially for business travellers? WS has no flight from YYZ to YHZ between 7:16AM and 3:14PM. From YHZ to YYZ, the last flight is 3:30PM. You lost the whole afternoon and even an early dinner engagement to make the day productive.