LHR T3 to T5 travelling First - allowable transit time?
About to book a return flight to LHR from CPT on EK arriving at 11:35. Departing BA 117 out of T5 at 13:15. Flying First (both legs) so priority check in and security at T5. Doable??? Foolhardy? Can the experts here advise? It seems realistic given no queues for check in or security.