Core Holidays
Harmony Crest Resort & Spa, Psalidi

Price by departure month

Per person, 7 nights, 2 adults — cheapest of ten UK airports. Going in May 27 instead of Aug 27 saves £246 per person (25%).
£650£750£850£950£1,050MayJunJulAugSepOct

May 27 in Kos averages a daily high of 23°C with about 4 wet days — £32 per °C, per person.