Keep 'ploughing' through Skyscanner
And use the various options through China ...( Although there are no 'reasonable priced' flights back to UK for a week or so
I did see a couple of 'reasonable' routes
Bkk ....Karachi ....Karachi to London via Istanbul....
Also seen a route via Ashgabat
I see the flights via China are 'normal' prices from the 24th March onwards.....
Good luck ....
( I've been scrolling Skyscanner for days....hoping to get back to UK over the next
*****
days ....and those were the only 'reasonable priced' options I could find )