UA 3941 then QF 4367 at San Francisco
Washington → San Francisco → Los Angeles
Timetable, San Francisco time
14:07UA 3941 from Washington at the gate
10:33QF 4367 to Los Angeles leaves the gate
20 h 26 apart on the timetable, overnight
QF 4367 leaves 20 h 26 after UA 3941 arrives on the timetable: more than half a day, so not a connection we count.