DL 2819 then G4 3473 at Boston
Miami → Boston → Fort Lauderdale
Timetable, Boston time
10:23DL 2819 from Miami at the gate
10:19G4 3473 to Fort Lauderdale leaves the gate
23 h 56 apart on the timetable, overnight
G4 3473 leaves 23 h 56 after DL 2819 arrives on the timetable: more than half a day, so not a connection we count.