Travelling has contemporarily with no doubt become such an activity that more and more people are keen on. It is indicated by the fact that first of all, it has never been so simply and widely available as it is contemporarily. This implies that we are able to choose from so many companies as well as means of transport that no matter when or where we would like to travel, we are able to find such a solution that would meet our requirements. Hence, in the sphere of tourism there is a rising interest from the end-users, as well as improving supply from various carriers, who also tend to invent more and more modern strategies to make improvingly people give travelling an opportunity. This explains why for example there are a variety of tickets for the airplanes, which are available in a quite attractive price. Sometimes their price is even more attractive than in the case of travelling with a bus.