Do we need a SIN number to have a SIM ? Can we get it from airport ? When landing or how ? Is there Tourist pack ?

I didn't need anything to buy a sim. They just took my details and bam. But I got koodo which is a bit more expensive plan. Might transfer to some other plan next month

See if you can get one from Fido directly while you are in your home country. It is cheaper, and the statements can be used as proof of address.

Prepaid Sim doesnt even need a passport! Check publicmobile.ca