AV 2351 then AC 4154 at San Francisco
Denver → San Francisco → Tucson
Timetable, San Francisco time
23:09AV 2351 from Denver at the gate
12:10AC 4154 to Tucson leaves the gatealso UA 5736, NH 7008, NZ 9748
13 h 01 apart on the timetable, overnight
AC 4154 leaves 13 h 01 after AV 2351 arrives on the timetable: more than half a day, so not a connection we count.