Air Canada Cancellation fee will not charge if you are canceling your reservation within 24 hours otherwise you would have to pay 200USD for making changes in dates or cancel the reservation. Here are some tips to avoid cancellation fees: Cancellations must be done in 24 hours then you are eligible for avoiding the cancellation fees. If you have purchased your travel insurance with Air Canada and the flight is canceled due to bad weather then your cancellation fee will be waived off.

https://airlinespolicy.com/cancellation-policy/air-canada-cancellation-policy/

If you are a student who wants to fly from Canada to the United States to study, you will most likely have to rent a place to live. Like everywhere else, when you come to another country, you should think about insuring yourself and the apartment you will be renting https://american-reia.com/home-insurance/why-taking-out-renters-insurance-for-college-students-is-important/, as this kind of insurance can protect you from unnecessary expenses, especially if you are just a student studying and don't have a job yet.