UA 3926 then AC 4187 at San Francisco
Newark → San Francisco → Santa Ana
Timetable, San Francisco time
22:56UA 3926 from Newark at the gate
13:45AC 4187 to Santa Ana leaves the gatealso VA 8491
14 h 49 apart on the timetable, overnight
AC 4187 leaves 14 h 49 after UA 3926 arrives on the timetable: more than half a day, so not a connection we count.