WN 4187 then AA 609 at Phoenix
St Louis → Phoenix → Miami
Timetable, Phoenix time
14:35WN 4187 from St Louis at the gate
13:37AA 609 to Miami leaves the gate
23 h 02 apart on the timetable, overnight
AA 609 leaves 23 h 02 after WN 4187 arrives on the timetable: more than half a day, so not a connection we count.