CM 2528 then UA 1577 at San Francisco
Ontario → San Francisco → San Diego
Timetable, San Francisco time
20:10CM 2528 from Ontario at the gatealso AC 4112
18:55UA 1577 to San Diego leaves the gatealso LX 3310, AZ 4505, AC 5188, VA 8427, LH 9370
22 h 45 apart on the timetable, overnight
UA 1577 leaves 22 h 45 after CM 2528 arrives on the timetable: more than half a day, so not a connection we count.