BA 373 then BA 1338 at Heathrow
Toulouse → London → Newcastle
Timetable, London time
18:05BA 373 from Toulouse at the gate
16:05BA 1338 to Newcastle leaves the gate
22 h apart on the timetable, overnight
BA 1338 leaves 22 h after BA 373 arrives on the timetable: more than half a day, so not a connection we count.