Originally Posted by
jawnbc
You do go through security again with your carry-on, to ensure you confirm with UK security requirements. Which apparently means one carry-on only--regardless of status or class of service travelled. But I find that hard to believe....
Despite the advertised warnings, I've *never* had an issue with a regulation-size roller and standard laptop shoulder bag when clearing security at LHR (or indeed EDI, BFS, or BHD), or while boarding AC, BA, EI, and UA flights.