FR 658 then DL 155 at Dublin
Brussels → Dublin → Boston
Timetable, Dublin time
17:05FR 658 from Brussels at the gate
11:55DL 155 to Boston leaves the gate
18 h 50 apart on the timetable, overnight
DL 155 leaves 18 h 50 after FR 658 arrives on the timetable: more than half a day, so not a connection we count.