Originally Posted by
gemscot
But just to be sure, given my addled brain: If it's CE to ACL-LGW and then UK Domestic to GLA, will Lounge access at LGW be allowed?

Yes you are meant to, however there have been many reports of those connecting to domestic being wrongly turned away. Just mention you are inbound on CE, show your CE ticket, and that your domestic is booked in U class.