OZ 6344 then AA 1954 at San Francisco
St Louis → San Francisco → Chicago O'Hare
Timetable, San Francisco time
10:36OZ 6344 from St Louis at the gate
23:36AA 1954 to Chicago O'Hare leaves the gatealso QF 3241
13 h apart on the timetable
AA 1954 leaves 13 h after OZ 6344 arrives on the timetable: more than half a day, so not a connection we count.