AV 2067 then UA 1248 at San Francisco
Sacramento → San Francisco → Chicago O'Hare
Timetable, San Francisco time
07:15AV 2067 from Sacramento at the gate
05:00UA 1248 to Chicago O'Hare leaves the gatealso AC 4374, NZ 9300
21 h 45 apart on the timetable, overnight
UA 1248 leaves 21 h 45 after AV 2067 arrives on the timetable: more than half a day, so not a connection we count.