Airports are very important for economic growth. The demand for airport capacity has been growing very fast and private companies are now also investing in airport infrastructure. Airports must however be regulated because they are natural monopolies with high market power. Airports have variables and factors that are vital for airline operations. The identification of these variables are important to allocate airports for airline operations, minimize airline operation costs and fares, and maximize airline profits. This paper presents a literature review about different type of airports as a first step to identify the main parameters required for developing a new airline business model. This model should eventually be able to determine, from a set of existing airports, the location of the airports as well as the most profitable routes for low-cost airline companies.