That is TK not IST of course. Already asked the mods to change the title.
Thanks to
Swiss Tony who mentioned the QR sale out of BHX here:
http://www.flyertalk.com/forum/premi...qr-1550-a.html I started looking into BHX as an origin.
It seems that if you want to fly exUK to Asia, BHX is your departure point of choice if you're ok with TK.
Here are some examples:
BHX-SIN GBP 1350 on TK
BHX-HKG GBP 1369 on TK
BHX-DEL GBP 1119 on TK
I looked on kayak.co.uk as google flights doesn't always seem to find the best fares for TK.