Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Hallstatt (47% of total searches to Oberosterreich). The next most popular destinations are Obertraun (26%) and Linz (13%). Searches for hotels in Sankt Wolfgang im Salzkammergut (13%) are also popular.
KAYAK users have found double rooms in Oberosterreich for as cheap as $73 (Linz) in the last 3 days. The average price is $250.