A massive, daylong strike in Greece planned for Wednesday will shut down public services across the country, including all flights to and from Greek airports, according to the Associated Press.
Greece's two main labor unions called the strike, the second in two months, to protest government efforts to reform Greece's ailing pension system. Air traffic controllers and civil aviation staff are scheduled to join the walkout, leaving all flights grounded.
In France, a second day of strikes by air traffic controllers led to the cancellation of about half the flights Tuesday at Paris Orly airport, according to the AP. Most of the canceled routes were domestic flights. Traffic at Charles de Gaulle was reportedly not affected.