Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Vigan City (67% of total searches to Ilocos Sur). The next most popular destinations are Santiago (28%) and Candon (6%).
KAYAK users have found double rooms in Ilocos Sur for as cheap as S$ 123 (Vigan City) in the last 3 days. The average price is S$ 123.