AS 3463 then AA 1253 at San Francisco
San Diego → San Francisco → Chicago O'Hare
Timetable, San Francisco time
21:43AS 3463 from San Diego at the gatealso QR 8899, AA 9336
10:34AA 1253 to Chicago O'Hare leaves the gatealso IB 4495, QF 4697, PD 6338, GF 6456, EI 7303
12 h 51 apart on the timetable, overnight
AA 1253 leaves 12 h 51 after AS 3463 arrives on the timetable: more than half a day, so not a connection we count.