What are the differences between classes on an airline?

What are the differences between classes on an airline?

There's a big difference between coach class, business class and first class on an airline. In coach class, which we like to refer to as cattle class, you're just shoved in there. You don't get a lot of leg room in coach class. When somebody's reclining in the seat in front of you, you've got just about a few inches between yourself and the back of their seat. Of course, they don't even let you look into the business or first class sections. In first class, you're going to be greeted by champagne. You might get better food served on china. You're going to get all that leg room and the ability to recline, and almost sleep horizontally in first class. However, don't you think that first class doesn't come without a big price tag. First class is the most expensive way to travel on an airline.