FR 555 then BA 825 at Dublin
Manchester → Dublin → London Heathrow
Timetable, Dublin time
16:20FR 555 from Manchester at the gate
08:45BA 825 to London Heathrow leaves the gate
16 h 25 apart on the timetable, overnight
BA 825 leaves 16 h 25 after FR 555 arrives on the timetable: more than half a day, so not a connection we count.