CM 2528 then UA 3797 at San Francisco
Ontario → San Francisco → Louisville
Timetable, San Francisco time
20:10CM 2528 from Ontario at the gatealso AC 4112
14:45UA 3797 to Louisville leaves the gate
18 h 35 apart on the timetable, overnight
UA 3797 leaves 18 h 35 after CM 2528 arrives on the timetable: more than half a day, so not a connection we count.