CM 2458 then UA 1561 at San Francisco
Sacramento → San Francisco → San Diego
Timetable, San Francisco time
18:57CM 2458 from Sacramento at the gate
16:55UA 1561 to San Diego leaves the gatealso AC 4192, AZ 4504, VA 8231, LH 9202, NZ 9644
21 h 58 apart on the timetable, overnight
UA 1561 leaves 21 h 58 after CM 2458 arrives on the timetable: more than half a day, so not a connection we count.