FR 553 then EI 137 at Dublin
Manchester → Dublin → Boston
Timetable, Dublin time
21:25FR 553 from Manchester at the gate
16:45EI 137 to Boston leaves the gate
19 h 20 apart on the timetable, overnight
EI 137 leaves 19 h 20 after FR 553 arrives on the timetable: more than half a day, so not a connection we count.