What terminal is air canada at san francisco airport? Flying Air Canada from SFO Terminal 2 If you fly with Air Canada from San Francisco International Airport, you will depart from Terminal 2, which is a hive of activity and ease. The terminal provides a smooth journey with well defined check-in counters, various self-service kiosks, and a large security section to ensure that travelers get through quickly. After check-in, Air Canada customers have access to a range of culinary and shopping options, as well as enough seating areas to unwind before boarding. Terminal 2 is designed for ease and comfort, giving passengers a great start to their Air Canada adventure.