UA 2363 then AC 5432 at San Francisco
Ontario → San Francisco → Chicago O'Hare
Timetable, San Francisco time
07:30UA 2363 from Ontario at the gatealso AC 4080
22:45AC 5432 to Chicago O'Hare leaves the gatealso VA 8105
15 h 15 apart on the timetable
AC 5432 leaves 15 h 15 after UA 2363 arrives on the timetable: more than half a day, so not a connection we count.