NYC to Cuba on American Just $262 r/t

American Airlines is selling coach seats from New York City to Varadero, Cuba, as low as $262 round-trip for Fall travel. Other cities also.

http://www.airfarewatchdog.com/blog/29218514/new-york-to-varadero-on-american-airlines

If you are an American citizen you will need a Cuban visa and must meet certain other requirements of purpose of your trip.

UPDATE: Other cities are also discounted, http://pointsmilesandmartinis.boardingarea.com/2016/07/flights-cuba-just-got-cheaper-american-airlines/