BA 1315 then FI 455 at Heathrow
Aberdeen → London → Reykjavík
Timetable, London time
20:40BA 1315 from Aberdeen at the gate
20:35FI 455 to Reykjavík leaves the gate
23 h 55 apart on the timetable, overnight
FI 455 leaves 23 h 55 after BA 1315 arrives on the timetable: more than half a day, so not a connection we count.