AA 3764 then WN 1552 at Phoenix
Mc Allen → Phoenix → Denver
Timetable, Phoenix time
07:35AA 3764 from Mc Allen at the gate
19:45WN 1552 to Denver leaves the gate
12 h 10 apart on the timetable
WN 1552 leaves 12 h 10 after AA 3764 arrives on the timetable: more than half a day, so not a connection we count.