WN 1801 then DL 680 at Atlanta
Denver → Atlanta → San Diego
Timetable, Atlanta time
18:35WN 1801 from Denver at the gate
17:59DL 680 to San Diego leaves the gate
23 h 24 apart on the timetable, overnight
DL 680 leaves 23 h 24 after WN 1801 arrives on the timetable: more than half a day, so not a connection we count.