How to flight really cheap by plane?

Every each day, whole around the world, millions of passengers are checked at the airfields. They flying in businesses, for family issues, for holiday or for some short weekend out of house. Doesn’t matter what are their reasons the most interesting of it is a fact, that year after year, more and more people can afford to flying by planes. Because of cheap flights , organized by small, internationals airline firms. But what to do, to travels in fact economical? These are few hints, that could help you if you are beginner in airplane travels.