BA 1487 then EI 177 at Heathrow
Glasgow → London → Dublin
Timetable, London time
20:05BA 1487 from Glasgow at the gate
19:45EI 177 to Dublin leaves the gate
23 h 40 apart on the timetable, overnight
EI 177 leaves 23 h 40 after BA 1487 arrives on the timetable: more than half a day, so not a connection we count.