AV 2267 then AA 948 at San Francisco
Medford → San Francisco → Chicago O'Hare
Timetable, San Francisco time
21:20AV 2267 from Medford at the gate
14:32AA 948 to Chicago O'Hare leaves the gate
17 h 12 apart on the timetable, overnight
AA 948 leaves 17 h 12 after AV 2267 arrives on the timetable: more than half a day, so not a connection we count.