TP 4399 then TN 1322 at San Francisco
Boston → San Francisco → Los Angeles
Timetable, San Francisco time
00:25TP 4399 from Boston at the gate
15:07TN 1322 to Los Angeles leaves the gatealso AA 6214, IB 8188
14 h 42 apart on the timetable
TN 1322 leaves 14 h 42 after TP 4399 arrives on the timetable: more than half a day, so not a connection we count.