Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Potsdam (44% of total searches to Brandenburg). The next most popular destinations are Schönefeld (28%) and Frankfurt an der Oder (18%). Searches for hotels in Cottbus (9%) are also popular.
KAYAK users have found double rooms in Brandenburg for as cheap as $24 (Blankenfelde-Mahlow) in the last 3 days. The average price is $124.