WN 191 then WN 1716 at San Francisco
St Louis → San Francisco → Phoenix
Timetable, San Francisco time
12:25WN 191 from St Louis at the gate
05:50WN 1716 to Phoenix leaves the gatealso QF 4864
17 h 25 apart on the timetable, overnight
WN 1716 leaves 17 h 25 after WN 191 arrives on the timetable: more than half a day, so not a connection we count.