Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Benidorm (79% of total searches to Costa Blanca). The next most popular destinations are Alicante (18%) and Torrevieja (2%). Searches for hotels in Calp (1%) are also popular.
KAYAK users have found double rooms in Costa Blanca for as cheap as £17 (Sant Vicent del Raspeig) in the last 3 days. The average price is £154.