In the last years, due to the development of the Internet, as well as the omnipresence of smartphones, an important rise of Internet tourist products and services markets has been observed. The e-tourism affects the whole tourist industry. In the tourist market, the most powerful are the airline companies who own the 50% of the whole market. This is due to the growth of low cost companies, like some companies who do not own physical stores and offer significantly low-priced tickets, thus creating an essential competition in the field.