Editor’s Note by Dimitris Zopounidis.
The Persian Gulf constitutes a critical hub for global air transport, hosting an exceptionally dense network of connections. The recent escalation of tensions in the Middle East is creating a highly sensitive environment for international civil aviation. This is not merely a regional geopolitical crisis, but a development that directly affects the core structure of the global air transport system.
Major Gulf airports such as Dubai, Doha, and Abu Dhabi have, over the past two decades, evolved into key nodes of the global aviation network.
Dubai International Airport (DXB) is a characteristic example. In 2024, it handled approximately 92.3 million passengers, while in 2025 it is estimated to have slightly exceeded 95 million, maintaining its position as the world’s largest international airport in terms of international passenger traffic.
Similarly, Hamad International Airport in Doha handled approximately 54.3 million passengers in 2025, while Abu Dhabi International Airport exceeded 32.5 million passengers in the same year. Collectively, these three hubs managed more than 181 million passengers, functioning as central connection points between Europe, Asia, Africa, and Oceania.
The importance of these hubs becomes even more evident when examining the structure of international air transport networks. According to data from the International Air Transport Association (IATA) and OAG, approximately 30–35% of long-haul passengers traveling between Europe and Asia use a Gulf hub for transfer.
At the same time, a significant share of Europe–Australia and Europe–Southeast Asia connectivity is routed through these hubs. The hub-and-spoke model developed by Gulf carriers is fundamentally based on this strategic geographic positioning.
Emirates, for instance, is currently one of the largest long-haul airlines globally. Its fleet exceeds 260 aircraft, including more than 120 Airbus A380s and nearly 140 Boeing 777s, while its network spans over 140 destinations across six continents. Its operational model is almost entirely built around Dubai as a global hub.
Similarly, Qatar Airways operates a fleet of approximately 230 aircraft, serving more than 170 destinations, while Etihad Airways maintains a fleet of around 90 aircraft, playing a significant role in the region’s connectivity network.
Within such a framework, any major disruption to the operation of these hubs generates cascading effects across the global air transport system. From a Business Analytics and data analysis perspective, this phenomenon can be interpreted as a disruption within a highly interconnected and dense transportation network.
Air transport networks function as complex systems, where certain nodes exhibit high centrality and concentration of passenger flows. Gulf hubs belong precisely to this category. When such nodes are affected, overall network efficiency declines and traffic is redistributed.
In such scenarios, analysts already observe the potential strengthening of alternative hubs. The new Istanbul Airport, which handled more than 83 million passengers in 2025, has the capacity to absorb part of the displaced international traffic.
At the same time, major European hubs such as Frankfurt, Paris Charles de Gaulle, and London Heathrow—each handling between 60 and 80 million passengers annually—may experience a temporary increase in transfer traffic. In certain markets, Asian hubs such as Singapore, which manages over 67 million passengers per year, could also gain additional importance.
However, from a long-term airport sustainability perspective, the geographic positioning of Gulf hubs remains difficult to replicate. Their success is based on a unique combination of geography, infrastructure, and operational efficiency. Moreover, these airports have made substantial investments in sustainability strategies, energy efficiency, and emissions reduction, which are key pillars of modern airport development.
Within this evolving environment, Greece is gaining increased strategic importance in the broader air transport landscape. Its geographic position at the southeastern edge of Europe establishes it as a natural gateway between Europe, the Middle East, and the Eastern Mediterranean. In recent years, Greek airports have demonstrated strong growth, with total passenger traffic exceeding 70 million annually.
In this context, the development of new aviation infrastructure is also of particular interest. The new Heraklion International Airport in Kasteli is expected to become one of the most significant airport infrastructure projects in the Eastern Mediterranean.
Its operation is anticipated to further enhance the connectivity of Crete and Greece as a whole, positioning the country as a node between Europe, Asia, and Africa. This creates new opportunities for tourism development, while also strengthening Greece’s strategic role within the regional aviation network.
In an environment where global air transport networks are increasingly seeking reliable hubs and alternative routing options, the utilization of aviation data and analytical tools can play a decisive role in infrastructure planning and future airport development in Greece.
The current crisis therefore also serves as a reminder of the importance of resilience in aviation infrastructure. In a global transport system that increasingly relies on a limited number of highly dominant hubs, geopolitical stability and strategic risk management are now fundamental prerequisites for the sustainable operation of global aviation.
