AV 2267 then AA 1253 at San Francisco
Medford → San Francisco → Chicago O'Hare
Timetable, San Francisco time
21:20AV 2267 from Medford at the gate
10:34AA 1253 to Chicago O'Hare leaves the gatealso IB 4495, QF 4697, PD 6338, GF 6456, EI 7303
13 h 14 apart on the timetable, overnight
AA 1253 leaves 13 h 14 after AV 2267 arrives on the timetable: more than half a day, so not a connection we count.