This paper explores the evolution of airport passenger traffic in Greece over the period 1978-2006. The country is a member of the European Common Aviation Area but despite air transport liberalisation, spatial concentration of traffic and asymmetry remain high and have not decreased significantly over time. Greece is still short of traffic generated by low cost carriers especially outside the main metropolitan airports. The paper argues that further dispersion of traffic could be possible primarily in the mainland if low cost carriers decide to dynamically enter the Greek market. Potential benefits for regional and tourism development should induce policymakers to work towards this direction.