Greece's two main airlines said they would cancel all domestic and international flights on Thursday because of a planned nationwide strike by Greek civil servants, including air traffic controllers. Olympic Airlines and Aegean Airlines announced the decision Tuesday and asked passengers for that day to call and reschedule their flights.
Some 107 Olympic flights will be canceled. Aegean did not say how many of its flights would be affected.
It was unclear what international airlines would do Thursday, when civil servants planned to strike to demand higher wages from the government.
"This strike will affect air transportation around the country, and Olympic Airlines is obliged to cancel all domestic and international flights on that day," an Olympic statement said.
The strike begins at midnight (2200GMT) on Wednesday and ends 24 hours later, according to the AP.
Civil servants also planned to hold a rally in downtown Athens on Thursday.