As each visa has different rules, it is important to check the requirements of the visa which is specific to you. Some student visas allow you to travel to the UK up to one month before your course starts, whereas others only allow one week. Make sure you check your visa restrictions before booking your travel.
If you wish to stay in the UK after your student visa has expired, it is important to check whether you need a tourist visa, student visa or work permit. Overstaying your visa in the UK can have many serious consequences that could affect you, especially if you wanted to return to the UK in the future.