AS 409 then DL 1706 at Seattle
Washington → Seattle → Detroit
Timetable, Seattle time
10:36AS 409 from Washington at the gate
09:45DL 1706 to Detroit leaves the gate
23 h 09 apart on the timetable, overnight
DL 1706 leaves 23 h 09 after AS 409 arrives on the timetable: more than half a day, so not a connection we count.