DL 3055 then DL 1861 at Atlanta
Charleston (South Carolina) → Atlanta → San Juan
Timetable, Atlanta time
06:36DL 3055 from Charleston (South Carolina) at the gate
18:45DL 1861 to San Juan leaves the gate
12 h 09 apart on the timetable
DL 1861 leaves 12 h 09 after DL 3055 arrives on the timetable: more than half a day, so not a connection we count.