Fly from Ft Lauderdale to Copenhagen for $608 round-trip, nonstop, including all taxes as part of the introductory sale from Norwegian. Service from Copenhagen begins November 29, with service from Stockholm is set to begin on December 1, both operating twice weekly.
We easily found cheap seats using Norwegian.com, departing December 1, returning December 9. This is a bare bones fare, and does not include checked baggage. Other dates also available for fall/winter travel.