AC 4121 then AS 308 at San Francisco
Ontario → San Francisco → Los Angeles
Timetable, San Francisco time
17:50AC 4121 from Ontario at the gate
16:46AS 308 to Los Angeles leaves the gatealso TN 2774, QR 4283
22 h 56 apart on the timetable, overnight
AS 308 leaves 22 h 56 after AC 4121 arrives on the timetable: more than half a day, so not a connection we count.