Some Greek Flights Resume After Air Traffic Radio Collapse

People stand with their luggage, as airports across Greece have suspended arrivals and departures on Sunday, after unspecified issues affecting radio frequencies, at the Eleftherios Venizelos International Airport, in Athens, Greece, January 4, 2026. Louiza Vradi/Reuters

ATHENS—Flights across Greece were grounded for several hours on Sunday after a collapse of radio frequencies crippled air traffic communications, stranding thousands of travellers and bringing airport operations to a virtual standstill.

Authorities said the disruption began at 8:59 a.m. local time (0659 GMT), when most aviation radio frequencies were hit by massive interference, forcing a precautionary shutdown of Greek airspace.