WN 3864 then WN 4553 at Phoenix
San Diego → Phoenix → Milwaukee
Timetable, Phoenix time
20:35WN 3864 from San Diego at the gate
18:00WN 4553 to Milwaukee leaves the gate
21 h 25 apart on the timetable, overnight
WN 4553 leaves 21 h 25 after WN 3864 arrives on the timetable: more than half a day, so not a connection we count.