Question: where does porter fly out of in toronto?
Answer: Billy Bishop Toronto City Airport

Porter Airlines is a regional airline headquartered at Billy Bishop Toronto City Airport on the Toronto Islands in Toronto , Ontario , Canada . Owned by Porter Aviation Holdings , formerly known as REGCO Holdings Inc. , Porter operates regularly scheduled flights between Toronto and locations in Canada and the United States using Canadian - built Bombardier Dash - 8 Q 400 turboprop aircraft .