UA 543 then AV 2066 at San Francisco
Chicago O'Hare → San Francisco → Sacramento
Timetable, San Francisco time
13:30UA 543 from Chicago O'Hare at the gatealso AC 4163, VA 8089, NZ 9321
08:30AV 2066 to Sacramento leaves the gate
19 h apart on the timetable, overnight
AV 2066 leaves 19 h after UA 543 arrives on the timetable: more than half a day, so not a connection we count.