No. of Recommendations: 2
There are some great fares to Athens from Boston, NYC, Chicago, and some other cities with departures/returns in November and the first week or so of December, including on Delta/KLM/Air France. Basic economy under $500 r/t and main cabin around $120 additional. Explore here:
Google: Search results?
I would have grabbed one of these flights were it not for the fact that DW and I are already leaving for Italy in 2 weeks.
This is a great time of year to visit Greece: cooler weather, less crowded. If you want a lovely hotel at a good price and within walking distance of Acropolis and Syntagma Square, I highly recommend Sweet Home Hotel:
https://www.sweethomehotel.gr 