DL 5647 then AA 4539 at Boston
Savannah → Boston → Columbus (Ohio)
Timetable, Boston time
20:59DL 5647 from Savannah at the gate
19:46AA 4539 to Columbus (Ohio) leaves the gate
22 h 47 apart on the timetable, overnight
AA 4539 leaves 22 h 47 after DL 5647 arrives on the timetable: more than half a day, so not a connection we count.