Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Valverde (90% of total searches to El Hierro). The next most popular destinations are Las Casas (5%) and La Restinga (2%). Searches for hotels in Frontera (2%) are also popular.
KAYAK users have found double rooms in El Hierro for as cheap as £26 (Frontera) in the last 3 days. The average price is £84.