KL 623 then DL 3507 at Atlanta
Amsterdam → Atlanta → Shreveport
Timetable, Atlanta time
13:35KL 623 from Amsterdam at the gate
11:00DL 3507 to Shreveport leaves the gate
21 h 25 apart on the timetable, overnight
DL 3507 leaves 21 h 25 after KL 623 arrives on the timetable: more than half a day, so not a connection we count.