EI 155 then FR 556 at Dublin
London Heathrow → Dublin → Manchester
Timetable, Dublin time
11:15EI 155 from London Heathrow at the gate
08:20FR 556 to Manchester leaves the gate
21 h 05 apart on the timetable, overnight
FR 556 leaves 21 h 05 after EI 155 arrives on the timetable: more than half a day, so not a connection we count.