FR 553 then EI 386 at Dublin
Manchester → Dublin → London Heathrow
Timetable, Dublin time
21:25FR 553 from Manchester at the gate
19:45EI 386 to London Heathrow leaves the gate
22 h 20 apart on the timetable, overnight
EI 386 leaves 22 h 20 after FR 553 arrives on the timetable: more than half a day, so not a connection we count.