Air Canada is the largest airline in Canada and is the flag carrier of the country. It was founded in 1937 and operates both domestic and international flights to over 200 destinations. The airline's headquarters are located in Montreal, Quebec, and its main hub is at Toronto Pearson International Airport. Air Canada is a member of the Star Alliance, which is one of the world's largest airline alliances. The airline has a fleet of more than 180 aircraft, including both narrow-body and wide-body planes. Air Canada offers various classes of service, including Economy, Premium Economy, Business, and International Business Class.