UA 368 then TP 4392 at San Francisco
Washington National → San Francisco → Boston
Timetable, San Francisco time
21:00UA 368 from Washington National at the gatealso NZ 2770
10:44TP 4392 to Boston leaves the gate
13 h 44 apart on the timetable, overnight
TP 4392 leaves 13 h 44 after UA 368 arrives on the timetable: more than half a day, so not a connection we count.