Home | Billy Bishop Toronto City Airport, Located on Toronto Island, Billy Bishop Toronto City Airport ( YTZ ) is Canada's sixth-busiest airport with passenger service into the United States and welcomes 2.7 million business and leisure travellers each year. Offering service to more than 20 cities in Canada and the U.S., with connection opportunities to more than 80 international destinations via our airlines' networks, Billy Bishop Airport is an important international gateway and a key driver to Toronto's economy, accounting for more.