F9 3600 then DL 472 at Atlanta
Denver → Atlanta → Seattle
Timetable, Atlanta time
15:02F9 3600 from Denver at the gate
14:05DL 472 to Seattle leaves the gate
23 h 03 apart on the timetable, overnight
DL 472 leaves 23 h 03 after F9 3600 arrives on the timetable: more than half a day, so not a connection we count.