WN 2803 then WN 3409 at Phoenix
Chicago Midway → Phoenix → Dallas
Timetable, Phoenix time
15:00WN 2803 from Chicago Midway at the gate
14:25WN 3409 to Dallas leaves the gate
23 h 25 apart on the timetable, overnight
WN 3409 leaves 23 h 25 after WN 2803 arrives on the timetable: more than half a day, so not a connection we count.