WN 239 then DL 1705 at Atlanta
St Louis → Atlanta → Louisville
Timetable, Atlanta time
18:50WN 239 from St Louis at the gate
19:30DL 1705 to Louisville leaves the gate
40 min apart on the timetable
The last days
WN 239 and DL 1705 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.