DL 5601 then B6 733 at Boston
Cincinnati → Boston → San Francisco
Timetable, Boston time
14:59DL 5601 from Cincinnati at the gate
13:30B6 733 to San Francisco leaves the gate
22 h 31 apart on the timetable, overnight
B6 733 leaves 22 h 31 after DL 5601 arrives on the timetable: more than half a day, so not a connection we count.