This paper gives an overview of Spanish airports and their traffic and identifies Spain's infrastructure needs. The advantages and disadvantages of public and private management of airports in Spain are discussed. Moreover, key legislative reforms are suggested in anticipation of the structural and administrative changes needed to permit private investment in the development of Spain's airports. Investment proposals for the busiest Spanish airports are examined, including handling services. To conclude, global trends in the development of airport infrastructures are compared with those shaping the present and future growth of Spanish airports.