DL 3754 then DL 533 at Seattle
Spokane → Seattle → Detroit
Timetable, Seattle time
14:30DL 3754 from Spokane at the gate
13:35DL 533 to Detroit leaves the gate
23 h 05 apart on the timetable, overnight
DL 533 leaves 23 h 05 after DL 3754 arrives on the timetable: more than half a day, so not a connection we count.