UA 2754 then DL 860 at San Francisco
Minneapolis → San Francisco → Boston
Timetable, San Francisco time
19:33UA 2754 from Minneapolis at the gatealso OZ 6312, VA 8253, NZ 9438
15:05DL 860 to Boston leaves the gate
19 h 32 apart on the timetable, overnight
DL 860 leaves 19 h 32 after UA 2754 arrives on the timetable: more than half a day, so not a connection we count.