UA 2492 then TP 4392 at San Francisco
Los Angeles → San Francisco → Boston
Timetable, San Francisco time
07:30UA 2492 from Los Angeles at the gatealso NH 7357
22:10TP 4392 to Boston leaves the gate
14 h 40 apart on the timetable
TP 4392 leaves 14 h 40 after UA 2492 arrives on the timetable: more than half a day, so not a connection we count.