Bargain Airfare: $501 from Boston to Greece

Today I found an incredible deal on Kayak.com to Northern Greece from Boston for only $501 roundtrip including all taxes and fees. There is one stop in Istanbul and you can even setup the flights to enjoy a long layover in Istanbul.

The flights I found are departing Boston on January 22, 2015 and returning February 4, 2015. A screenshot is posted below for reference.