As others have said don’t cancel now as there may be a schedule charge or cancellation when you can get a full refund. Also when booking it does say in the event of cancellation all you get back are taxes and you tick the box, to agree,

Theres many differences to both markets.. in the UK even if weather cancels your flight you are entitled to duty of care so that’s a hotel, food and drink (not alcohol) whereas in the US the customer service desk will give you a sheet of hotel numbers where you might get a distressed rate. On your own dime.

Fingers crossed this works out for you.