Core Holidays
Apollon Windmill Boutique Hotel, Lambi

Price by departure month

Per person, 7 nights, 2 adults — cheapest of ten UK airports. Going in May 27 instead of Aug 27 saves £299 per person (34%).
£500£600£700£800£900MayJunJulAugApr

May 27 in Kos averages a daily high of 23°C with about 4 wet days — £25 per °C, per person.