MU 8665 then AC 4470 at San Francisco
New York JFK → San Francisco → Ontario
Timetable, San Francisco time
22:42MU 8665 from New York JFK at the gate
14:00AC 4470 to Ontario leaves the gatealso UA 5592
15 h 18 apart on the timetable, overnight
AC 4470 leaves 15 h 18 after MU 8665 arrives on the timetable: more than half a day, so not a connection we count.