There are a number of reasons why people aren't booking air travel, and fear of catching C-19 itself isn't the lone concern.
Sadly, the constant chopping and changing of travel advice alone is enough to explain the adverse affect on forward bookings.
There is still a strong underlying demand for international travel no doubt. The increase in last-minute getaways this summer and strong bookings reported by some carriers for 2021, in the hope of an improved outlook, only explains that too well. But frankly, very few can book with confidence whilst this short-notice, illogical and fragmented government approach to travel restrictions continues.
Let's hope that these can be rationalised to give an appropriate level of responce, so those who very much still want or need to travel, can do so in a safe manner and create a self financing recovery to protect the livlihoods of so many hard working professionals, rather than government payouts.