Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Jaca (33% of total searches to Aragon). The next most popular destinations are Canfranc (33%) and Torla (22%). Searches for hotels in Formigal (11%) are also popular.
KAYAK users have found double rooms in Aragon for as cheap as $72 (Jaca) in the last 3 days. The average price is $169.