Air traffic is the fastest and most complex transport branch for transport of people and goods. Its special importance is evident in the development of the global economy and the improvement of the social welfare. Due to the deregulation and liberalization of the air traffic market, air traffic has been recording increasing growth rates every year at both global and domestic levels. One of the most important factors influencing the growth and development of air traffic is the development of tourism. Accordingly, it can be said that tourism is key factor for growth and development of air traffic in Croatia, especially as Croatia is a tourist oriented country. However, due to the seasonal development of tourism, there are significant fluctuations and a high degree of seasonality in the demand for air traffic services, which is especially emphasised in coastal airports. Therefore, the focus of this paper is on the two leading coastal airports - Split and Dubrovnik, which are immediately behind the largest Croatian airport "Franjo Tuđman Airport" by size of traffic. The main objective was to make a comparative analysis of their financial stability and performance and on that basis to evaluate their current efficiency. Despite the fact that both analysed airports are in the phase of reconstruction and upgrading of the existing state, the conducted analysis confirmed that Split Airport has greater financial stability and has a competitive advantage over Dubrovnik Airport.