DL 724 then DL 472 at Atlanta
Knoxville → Atlanta → Seattle
Timetable, Atlanta time
15:45DL 724 from Knoxville at the gate
14:05DL 472 to Seattle leaves the gate
22 h 20 apart on the timetable, overnight
DL 472 leaves 22 h 20 after DL 724 arrives on the timetable: more than half a day, so not a connection we count.