There is no doubt that social prosperity and a functioning market economy would have been difficult to achieve if there was no motorized traffic. This mobility, however, demands its price: In some areas the noise produced by different means of transport has reached limits hard to bear, the environment suffers from the emitted noise. Air traffic noise is not the most common type of traffic noise, but due to its special properties it penetrates the lives of the people affected. The special problem of aircraft noise is due to the diffusion of sound from a high-level source, unlike road or rail noise only a few measures offer effective protection against aircraft noise. The wide range of available documentation about international airports shows that in addition to the effects of utility for its economic environment the operation of an airport - necessarily associated with aircraft noise - has a negative impact on the region and the population. To monetize these consequences, an experiment for the willingness-to-pay for the reduction of aircraft noise events without regional reference and research on properties, health and willingness-to-pay related was carried out in the region surrounding the Vienna airport. The amount resulting from these negative effects is summarized in a final contribution and is discussed from two possible points of view of valuation. A comparison of the beneficial effects and costs for the population was not carried out, the referral was made exclusively with the negative effects of aircraft noise. The processing was carried out by three independent contributions on the theme of aircraft noise and a fourth, which summarizes possible external costs. For the sake of clarity of the summary sources which were used are mentioned only sparingly, the detailed evidence is included in the full text.