AV 2104 then UA 2391 at San Francisco
San Luis Obispo → San Francisco → Cincinnati
Timetable, San Francisco time
19:56AV 2104 from San Luis Obispo at the gate
12:15UA 2391 to Cincinnati leaves the gatealso NZ 2853
16 h 19 apart on the timetable, overnight
UA 2391 leaves 16 h 19 after AV 2104 arrives on the timetable: more than half a day, so not a connection we count.