On the southern island of Crete, hundreds of farmers taking part in an anti-austerity protest on Thursday tried to invade the terminal and the runway of Iraklio airport. Police kept them off with tear gas, and one man was detained for trying to drive his tractor onto the runway.
Airport authorities said flights were not affected by the protest. Crete is a major tourist destination, attracting more than 44,000 flights last year.
Finance Minister Yannis Stournaras said Wednesday there were still considerable differences between the government and Greece's debt inspectors from the International Monetary Fund, European Commission and European Central Bank over the new austerity package. But he said he hopes to clinch a deal by next week.
The country has been in recession since 2008, and the total contraction is projected to reach a cumulative 25 percent at the end of next year.