FR 815 then EI 123 at Dublin
Edinburgh → Dublin → Chicago
Timetable, Dublin time
14:15FR 815 from Edinburgh at the gate
11:30EI 123 to Chicago leaves the gate
21 h 15 apart on the timetable, overnight
EI 123 leaves 21 h 15 after FR 815 arrives on the timetable: more than half a day, so not a connection we count.