I used Google Flights to get my airfare roundtrip ORD-ATH ($740), we bought the tickets 2 days ago. (Flight is now ~$1200.) That leaves ATH-HER round trip. Aegean seems to be cheapest airline. I got the HER-ATH leg for $63. For the ATH-HER leg, flight is about $120.
We are about 2 months out from the trip. This flight is Sat night. We have limited flights to choose from as we land at ATH about 14:30. 16:10 and 17:50 are the A3 flights, 16:10 slightly cheaper than 17:50.
Do you think this leg will drop in price in a few weeks?