OZ 6344 then WN 4868 at San Francisco
St Louis → San Francisco → Phoenix
Timetable, San Francisco time
21:41OZ 6344 from St Louis at the gate
15:50WN 4868 to Phoenix leaves the gate
18 h 09 apart on the timetable, overnight
WN 4868 leaves 18 h 09 after OZ 6344 arrives on the timetable: more than half a day, so not a connection we count.