AA 2107 then WN 4553 at Phoenix
Chicago O'Hare → Phoenix → Milwaukee
Timetable, Phoenix time
08:15AA 2107 from Chicago O'Hare at the gate
20:25WN 4553 to Milwaukee leaves the gate
12 h 10 apart on the timetable
WN 4553 leaves 12 h 10 after AA 2107 arrives on the timetable: more than half a day, so not a connection we count.