CM 2458 then AC 4432 at San Francisco
Sacramento → San Francisco → Tucson
Timetable, San Francisco time
18:57CM 2458 from Sacramento at the gate
18:37AC 4432 to Tucson leaves the gatealso UA 5688, LH 9398, NZ 9747
23 h 40 apart on the timetable, overnight
AC 4432 leaves 23 h 40 after CM 2458 arrives on the timetable: more than half a day, so not a connection we count.