Zero. I have EasyJet flights for the 20th and 25th of May, they haven't cancelled them yet but I'm just waiting for it in the hope of a refund (rather than it being my decision to cancel earlier). I've cancelled all the rest of the trip.
Maybe I'm pessimistic or realistic but I think the safest way to think at the moment is to assume every trip (or even large event) planned for the rest of 2020 is likely to be at risk of not happening.