I’m due to travel to Santorini from the UK in June and so far I’m not concerned at all. As long as the planes are flying and I’ve got breath in my body, I’ll be there.
This crisis is changing very quickly and in 3 months time it might all be a distant memory.
Try to avoid any panicked, knee jerk cancellations, avoid scare stories put out by the tabloids and people like Fox News in the USA, where, from what I see here and on Trip Advisor forums, the most cancellations are coming from.
Maybe it’s just us Brits who are a bit more stoic about this kind of thing (although you wouldn’t think so if you saw the empty shelves in supermarkets caused by idiots panic buying toilet paper, pasta, rice etc), but I for one am not going to be stopped enjoying my hard earned holiday by what is essentially flu with attitude.