Please tell me how to buy cheap air tickets to Toronto in China

You can choose to go to Toronto during the off-season, so the air tickets will be relatively cheap. If the travel time has been determined, you can check and book in advance. For example, check the flight routes of multiple airlines through a ticket agent, and choose the flight route and price that suits you. Under normal circumstances, if you book with an airline, you can only check the flight price of that airline. In addition to checking the flight prices of multiple airlines, the air ticket agent can also check the lower price of transiting somewhere and then flying to Toronto. . A layover is cheaper than a direct flight.