Delta Air Lines has a low $590 round trip fare for quick trip departures this week from New York JFK to Athens, Greece ATH on nonstop flights. Fares are around $645 round trip for departures later in May before rising in June well above the $600s.
Delta Airlines New York JFK – Athens Greece ATH
$589.46 Tuesday May 17 – Saturday May 28
United Airlines Newark EWR – Athens ATH
$597.46 Tuesday May 17 – Saturday May 28