OZ 6344 then KL 6537 at San Francisco
St Louis → San Francisco → Atlanta
Timetable, San Francisco time
21:41OZ 6344 from St Louis at the gate
14:08KL 6537 to Atlanta leaves the gate
16 h 27 apart on the timetable, overnight
KL 6537 leaves 16 h 27 after OZ 6344 arrives on the timetable: more than half a day, so not a connection we count.