Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Teresina (89% of total searches to Piauí). The next most popular destinations are Cajueiro da Praia (6%) and Parnaíba (5%). Searches for hotels in São Raimundo Nonato (1%) are also popular.
KAYAK users have found double rooms in Piauí for as cheap as $28 (Picos) in the last 3 days. The average price is $28.