Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Pinhao (45% of total searches to Tras-Os-Montes & Alto Douro). The next most popular destinations are Viseu (18%) and Bragança (18%). Searches for hotels in Chaves (18%) are also popular.
KAYAK users have found double rooms in Tras-Os-Montes & Alto Douro for as cheap as €33 (Viseu) in the last 3 days. The average price is €69.