Bucharest - Berlin with Lufthansa from 49 EUR per segment (promotion January 16 and 17)
Lufhtansa has a special offer for passengers wishing to visit Berlin between January 23 and February 28. Tickets booked on 16 and 17 January 2013 on the site www.lufthansa.com, on the direct flights Lufthansa - Berlin, can be purchased at the price of 49 EUR per segment (one-way).
I recommend that you read: Berlin - Bucharest with Lufthansa (presentation)
The fare for a flight to Berlin includes bonus miles, the possibility of hold luggage and a variety of catering services, valid for all flights.
I have searched Bucharest - Berlin - Bucharest for the period February 23 - February 26 and I found at 99 EUR. I think it's a good price for a short stay in the German capital.
Numerous exhibitions, fairs and events are scheduled throughout February. So you won't have much time to get bored in Berlin. Pleasant trip!