OZ 6344 then AA 1854 at San Francisco
St Louis → San Francisco → Chicago O'Hare
Timetable, San Francisco time
10:36OZ 6344 from St Louis at the gate
23:39AA 1854 to Chicago O'Hare leaves the gatealso QF 4325, PD 6392, EI 7107
13 h 03 apart on the timetable
AA 1854 leaves 13 h 03 after OZ 6344 arrives on the timetable: more than half a day, so not a connection we count.