DL 154 then FR 1899 at Dublin
Boston → Dublin → Manchester
Timetable, Dublin time
09:45DL 154 from Boston at the gate
06:00FR 1899 to Manchester leaves the gate
20 h 15 apart on the timetable, overnight
FR 1899 leaves 20 h 15 after DL 154 arrives on the timetable: more than half a day, so not a connection we count.