Air Canada (AC) is the flag carrier and the largest airline of Canada which was founded in 1936 as Trans-Canada Air Lines. The airline is the ninth-largest airline of the world by fleet size and is a founding member of the Star Alliance with its headquarters in Montreal, Canada. Air Canada operates scheduled domestic & international airlines to over 182 destinations with a fleet size of 172. The airline serves close to 35 million passengers annually and provides direct passenger service to more than 175 destinations on five continents from its hubs at the Calgary International Airport, Toronto Pearson International Airport and Montréal–Pierre Elliott Trudeau International Airport.
Passengers could use the Air Canada booking Online Check-in function on the website. Simply input your flight information to sign in online. Web check-in begins 24 hours before travel and ends one hour before departure. Commuters who cannot check in online or need customised attention can do it at the airport or at one of Air Canada' check-in desks. Arrive at least two hours before departure for domestic flights and three hours before departure for international flights to help check-in, baggage drop-off, and luggage drop-off go more smoothly.