AF 8883 then UA 1780 at San Francisco
Los Angeles → San Francisco → Ontario
Timetable, San Francisco time
21:34AF 8883 from Los Angeles at the gate
18:50UA 1780 to Ontario leaves the gatealso AC 4423, AC 4548
21 h 16 apart on the timetable, overnight
UA 1780 leaves 21 h 16 after AF 8883 arrives on the timetable: more than half a day, so not a connection we count.