AV 2105 then UA 1971 at San Francisco
Reno → San Francisco → Chicago O'Hare
Timetable, San Francisco time
09:28AV 2105 from Reno at the gate
22:45UA 1971 to Chicago O'Hare leaves the gatealso AC 4200
13 h 17 apart on the timetable
UA 1971 leaves 13 h 17 after AV 2105 arrives on the timetable: more than half a day, so not a connection we count.