The issue of measuring the contribution of air transport to the regional economy is very
important nowadays since many airport infrastructure projects are being implemented, using available European Union funds. As a result of growing transport needs and increasing incomes among the population, the air transport market isstrongly developing. This development results to many direct and indirect socio-economic benefits to locations in close proximity of an airport but also in the whole economy. The measurement of these benefits is important because the decisions made with respect to air transport influence local and regional economic performance. The most commonly used tool for measuring the positive effects associated with the operation of an airport is the input-output analysis. The aim of the article is to present the characteristics of the input-output method, to indicate its applications in Poland - the country with the most dynamic growth of air transport, to present the possible limitations of this method and propose improvements.