FR 420 then KL 611 at Schiphol
Dublin → Amsterdam → Chicago
Timetable, Amsterdam time
18:55FR 420 from Dublin at the gate
12:30KL 611 to Chicago leaves the gate
17 h 35 apart on the timetable, overnight
KL 611 leaves 17 h 35 after FR 420 arrives on the timetable: more than half a day, so not a connection we count.