You must be very careful while packing your luggage as a student. Countries have very strict rules for baggage. So you must be very careful while packing your stuff. Also you must have travel insurance. Many airlines give relief to students in terms of the weight of luggage but the maximum weight for a single bag for most airlines such as Emirates, British Airways, Air Canada, Cathay Pacific and Malaysian Airlines, is usually 23 kilograms plus a carry-on piece of seven kilograms. Singapore and Qantas allow 30 kilograms. For luggage beyond that you will have to pay extra.