UA 3941 then AV 2066 at San Francisco
Washington → San Francisco → Sacramento
Timetable, San Francisco time
14:07UA 3941 from Washington at the gate
08:30AV 2066 to Sacramento leaves the gate
18 h 23 apart on the timetable, overnight
AV 2066 leaves 18 h 23 after UA 3941 arrives on the timetable: more than half a day, so not a connection we count.