Naples is the closest airport.
Easyjet flies there direct from Stansted, Paris, Berlin, Milan and Basel.
British Airways fly from Gatwick direct.
Flight time is 2hours 30 mins.
Transfer time from the airport to apartment is 90 mins by car or allow 120 mins by public transport.
A taxi will cost in the region of 125 Euros one way
There is a shared taxi service from Naples Airport and from Napoli Garibaldi rail station to Praiano which can be pre booked, very competitive rates. Ask for details