Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Porto (67% of total searches to Douro). The next most popular destinations are Vila Nova de Gaia (26%) and Maia (Porto) (5%). Searches for hotels in Lamego (3%) are also popular.
KAYAK users have found double rooms in Douro for as cheap as $29 (Porto) in the last 3 days. The average price is $305.