Core Holidays
Medplaya Agir The Springs Hotel, Benidorm

Price by departure month

Per person, 7 nights, 2 adults — cheapest of ten UK airports. Going in Dec 26 instead of Aug 27 saves £368 per person (46%).
£350£500£650£800SepOctNovDecJanFebMarAprMayJunJulAugSepOctNovDecJanFeb

Dec 26 in Costa Blanca averages a daily high of 17°C with about 3 wet days — £26 per °C, per person.