TP 4399 then NH 7314 at San Francisco
Boston → San Francisco → Las Vegas
Timetable, San Francisco time
00:25TP 4399 from Boston at the gate
12:28NH 7314 to Las Vegas leaves the gatealso CA 7317
12 h 03 apart on the timetable
NH 7314 leaves 12 h 03 after TP 4399 arrives on the timetable: more than half a day, so not a connection we count.