WN 4187 then AM 615 at Phoenix
St Louis → Phoenix → Mexico City
Timetable, Phoenix time
14:35WN 4187 from St Louis at the gate
14:13AM 615 to Mexico City leaves the gate
23 h 38 apart on the timetable, overnight
AM 615 leaves 23 h 38 after WN 4187 arrives on the timetable: more than half a day, so not a connection we count.