Core Holidays
Mariner's Hotel, Sunny Beach

Price by departure month

Per person, 7 nights, 2 adults — cheapest of ten UK airports. Going in May 27 instead of Aug 27 saves £296 per person (45%).
£300£400£500£600£700MayJunJulAugSep

May 27 in Bourgas Area averages a daily high of 21°C with about 10 wet days — £17 per °C, per person.