Fly from New York to Berlin for $396 round-trip on Norwegian.
Searching Norwegian, we found seats departing JFK on Monday, March 13, returning from SXF on Thursday, March 23.
This fare includes carry-on baggage only, weighing no more than 10kg/22lbs, so pack light or pay up. Should you prefer to check luggage, Norwegian's LowFare+ for these dates is $511 round-trip, which includes one checked bag weighing no more than 20kg/44lbs. Both are excellent fares!
Need a room in Berlin? Here's what's available for the above dates on Hotelwatchdog.