UA 2363 then QF 3741 at San Francisco
Ontario → San Francisco → San Diego
Timetable, San Francisco time
07:30UA 2363 from Ontario at the gatealso AC 4080
07:04QF 3741 to San Diego leaves the gate
23 h 34 apart on the timetable, overnight
QF 3741 leaves 23 h 34 after UA 2363 arrives on the timetable: more than half a day, so not a connection we count.