Fly from New York to Bergen for $345 round-trip, including all taxes, on Norwegian Air Shuttle.
We found seats departing JFK on May 2, and returning from BGO on May 10.
Similarly low fares are available for travel throughout May and early June.
*UPDATE: Aaaand it looks like this fare is already sold out! D'oh! Congrats to those lucky folks who managed to book so quickly. We're on the lookout for more deals like this one, so stay tuned!