AV 2067 then UA 2278 at San Francisco
Sacramento → San Francisco → Chicago O'Hare
Timetable, San Francisco time
07:15AV 2067 from Sacramento at the gate
22:45UA 2278 to Chicago O'Hare leaves the gate
15 h 30 apart on the timetable
UA 2278 leaves 15 h 30 after AV 2067 arrives on the timetable: more than half a day, so not a connection we count.