Greece's Tourism Boom Strains Athens Air Traffic Control as Flights Surge 40% Above 2019 Levels

Greek air traffic controllers say Athens-area airspace is overloaded as southeast European traffic runs about 40 percent above 2019 levels, with the control centre staffed at 154 of a needed 250 controllers.

Original report
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Industry impact

Chronic controller shortages against surging traffic show how quickly a peak-season capacity gap can turn into systemic delay and diversion risk across a whole air navigation region.

What happened

Air traffic controllers at the Greek Civil Aviation Authority in Athens say they are struggling to manage a sharp rise in flights tied to a tourism boom. During the first week of July, Greek airports handled an average of 2,700 flights per day, compared with 1,000 to 1,500 flights per day in the low season. Eurocontrol says overall air traffic in southeast Europe, which includes Greek airspace, has risen approximately 40 percent compared with 2019.

Tourist arrivals in Greece last year reached 38 million, 23 percent above the 2019 pre-pandemic peak, in a country with a population of around 10 million. "Look at this sky, it's crazy, there's no room for any more planes!" said Olga Toki, vice-president of the Association of Air Traffic Controllers of Greece. Shift supervisor Giorgos Stamoulakatos said the control centre has 154 controllers but needs 250; Greek airspace is divided into 10 sectors, each managed by a controller assisted by an aide.

A January 4 communication system failure cut contact between controllers and pilots and forced Greek airspace to close for hours, triggering a chain of cancellations and diversions to neighbouring countries and exposing infrastructure weaknesses. That incident prompted the announcement of a renovation programme costing around 300 million euros (approximately $350 million), including new digital communication systems and replacement of ageing radar; work on the new systems began in mid-August, with the full project expected to be completed by 2028. Separately, the European Commission last year brought a case before the Court of Justice of the European Union, reproaching Greece for failing to bring its navigation procedures in line with the global Performance-Based Navigation standard.

Who this affects

• Business Charter Operators — Peak-season Greek airspace congestion and a controller shortfall raise delay and diversion risk for flights routed through the region.
• Charter Brokers — Clients booking Greek trips during peak weeks may face delay or diversion risk that will persist until infrastructure upgrades finish by 2028.
• Commercial Airports — Greek airports face repeated peak-season strain until controller staffing and the 300 million euro system renovation catch up with demand.
• Air Traffic Management (ATM) Authorities — Greece's civil aviation authority must close a near-100-controller staffing gap and complete a 300 million euro system overhaul by 2028 while defending a EU court case.