According to an Israeli newspaper, Israir will be canceling all TLV-JFK fights until March. Apparently the airline could not secure an aircraft to operate the route. Since the return of their sole 767-300 to the lessor they have used a Neos 767-300, World MD-11, and a Euroatlantic 767-300 to operate the route.

The route will be restarted in April when they receive an A330-200.

http://www.ynet.co.il/articles/0,7340,L-3495143,00.html

(Link in Hebrew)