Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Interlaken (50% of total searches to Bernese Oberland). The next most popular destinations are Lauterbrunnen (28%) and Grindelwald (21%). Searches for hotels in Brienz (2%) are also popular.
KAYAK users have found double rooms in Bernese Oberland for as cheap as $204 (Hasliberg) in the last 3 days. The average price is $607.