Baggage storage is provided by Excess Baggage, which is located in Terminal 1 Domestic Arrivals Pre-Security, and in Terminal 3 International Departures Pre-Security. For rates and further information, please see the following links from the Toronto Pearson website:


Excess Baggage Terminal 1 – https://www.torontopearson.com/en/while-you-are-here/toronto-airport-services/excess-baggage-t1 

Excess Baggage Terminal 3 – https://www.torontopearson.com/en/while-you-are-here/toronto-airport-services/excess-baggage-t3