DL 5653 then B6 251 at Boston
Columbus (Ohio) → Boston → Orlando
Timetable, Boston time
19:42DL 5653 from Columbus (Ohio) at the gate
19:35B6 251 to Orlando leaves the gate
23 h 53 apart on the timetable, overnight
B6 251 leaves 23 h 53 after DL 5653 arrives on the timetable: more than half a day, so not a connection we count.