Join Date: Sep 2005
Location: HEL
Programs: AY Platinum, TK Elite, BT VIP, AA, BA, SK, DL, NT, WB + hotels
Posts: 8,753
I don't know what kind of past we're discussing here, but LHR have separated departures and arrivals at least since the 1990s. Domestic UK arrivals (and maybe Ireland?) are an exception, though.