go to https://www.norwegian.no/ use google translate for english call credit card to make sure not fraud because your paying in nok
Using google flights it's $249 to book on the Norwegian site. In english. https://www.google.com/flights/#search;f=JFK,EWR,LGA;t=TLV;d=2017-02-01;r=2017-02-12;tt=o;sel=JFKCPH0DY7012-CPHTLV1DY3790
For December 7th?