WN 3402 then DL 1670 at Atlanta
St Louis → Atlanta → Fort Lauderdale
Timetable, Atlanta time
19:20WN 3402 from St Louis at the gate
17:35DL 1670 to Fort Lauderdale leaves the gate
22 h 15 apart on the timetable, overnight
DL 1670 leaves 22 h 15 after WN 3402 arrives on the timetable: more than half a day, so not a connection we count.