WN 437 then WN 1566 at Phoenix
St Louis → Phoenix → Ontario
Timetable, Phoenix time
13:30WN 437 from St Louis at the gate
12:35WN 1566 to Ontario leaves the gate
23 h 05 apart on the timetable, overnight
WN 1566 leaves 23 h 05 after WN 437 arrives on the timetable: more than half a day, so not a connection we count.