Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Porto Velho (75% of total searches to Rondônia). The next most popular destinations are Ariquemes (13%) and Vilhena (9%). Searches for hotels in Ji-Paraná (3%) are also popular.
KAYAK users have found double rooms in Rondônia for as cheap as $20 (Porto Velho) in the last 3 days. The average price is $56.