AC 4077 then TP 4392 at San Francisco
Las Vegas → San Francisco → Boston
Timetable, San Francisco time
19:03AC 4077 from Las Vegas at the gatealso NZ 9244
10:44TP 4392 to Boston leaves the gate
15 h 41 apart on the timetable, overnight
TP 4392 leaves 15 h 41 after AC 4077 arrives on the timetable: more than half a day, so not a connection we count.