BA 1401 then KQ 101 at Heathrow
Belfast City → London → Nairobi
Timetable, London time
18:25BA 1401 from Belfast City at the gate
17:25KQ 101 to Nairobi leaves the gate
23 h apart on the timetable, overnight
KQ 101 leaves 23 h after BA 1401 arrives on the timetable: more than half a day, so not a connection we count.