Airlines serving Greece have canceled some or all flights on Wednesday, Oct. 5th, in preparation for a nationwide, 24-hour strike scheduled for civil workers.
Athens-based Aegean Airlines has preemptively canceled all service on Wednesday, and other carriers serving the country will likely follow suit. Some flights to other countries which would normally fly through Greek airspace may be forced to steer around the country due to the lack of ATC.
A general strike by all Greek workers is set for October 19th.
Strikes in Greece are not uncommon, but this seems to be more serious, in the wake of massive layoffs, pension cuts and tax increases the government has imposed while attempting to appease European benefactors and remain solvent.