New York to Athens?

One more possibility.

However, if the press kit indicates that the "Fares Start at Just $249", I note, however, that on their website the lowest JFK→ATH one-way economy fare is at $528 without checked or cabin baggage from early June to mid-September.

Rates at $249 are from mid-September (without checked or cabin baggage and no seat selection )

Thanks for the heads up. Another tool in the travel toolbox!