There are many different ways to travel from London to Paris. First of all, the most expensive way is to go by train and the cheapest way is to go by bus. Secondly, the quickest way to go is by plane and the slowest way to go is by bus. If you want to enjoy the most comfortable way is to go by plane. The most uncomfortable way is to go by bus. Going by train is the most interesting, while going by plane is the most boring.