WN 1638 then DL 369 at Detroit
Chicago Midway → Detroit → San Diego
Timetable, Detroit time
17:15WN 1638 from Chicago Midway at the gate
16:35DL 369 to San Diego leaves the gate
23 h 20 apart on the timetable, overnight
DL 369 leaves 23 h 20 after WN 1638 arrives on the timetable: more than half a day, so not a connection we count.