B6 478 then EI 104 at JFK
Jacksonville → New York → Dublin
Timetable, New York time
17:50B6 478 from Jacksonville at the gate
17:00EI 104 to Dublin leaves the gate
23 h 10 apart on the timetable, overnight
EI 104 leaves 23 h 10 after B6 478 arrives on the timetable: more than half a day, so not a connection we count.