Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is St. Moritz (72% of total searches to Graubunden). The next most popular destinations are Chur (21%) and Celerina/Schlarigna (5%). Searches for hotels in Disentis/Mustér (2%) are also popular.
KAYAK users have found double rooms in Graubunden for as cheap as $189 (Chur) in the last 3 days. The average price is $524.