FR 1557 then EI 123 at Dublin
Manchester → Dublin → Chicago
Timetable, Dublin time
15:25FR 1557 from Manchester at the gate
11:30EI 123 to Chicago leaves the gate
20 h 05 apart on the timetable, overnight
EI 123 leaves 20 h 05 after FR 1557 arrives on the timetable: more than half a day, so not a connection we count.