WN 3402 then DL 746 at Atlanta
St Louis → Atlanta → Denver
Timetable, Atlanta time
19:20WN 3402 from St Louis at the gate
18:58DL 746 to Denver leaves the gate
23 h 38 apart on the timetable, overnight
DL 746 leaves 23 h 38 after WN 3402 arrives on the timetable: more than half a day, so not a connection we count.