I don't know if there is a problem with one way or not that's why I'm asking.I will book one-way ticket. I don't think it would be a problem. What do you think?
By the way, do you plan to go to Canada while your course delivery is online?
I plan to go there by the end of my second semester around March/April. It is fully online learning due to covid.
actually you can travel anytime, but I advise you travel soon and get your study permit from the point of entry. also studying online will be much better in Canada, since you won't have problem with time difference.