Flights using Athens airport were returning to normal today following a 48-hour strike by air traffic controllers.
Almost 100 flights were delayed yesterday due to action by controllers, an improvement on the 186 flights disrupted on Sunday when three services were also cancelled.
The latest action by public sector workers in protest against government cuts was compounded on the roads as lorry drivers walked out, leaving many petrol stations running short of fuel.
Reports suggested that some could run out of fuel by tomorrow (Wednesday), prompting long queues as motorists attempted to fill up their vehicles.
The disruption comes at the start of the peak summer holiday period, a crucial time for the Greek tourism businesses.