F9 1116 then DL 3507 at Atlanta
Las Vegas → Atlanta → Shreveport
Timetable, Atlanta time
13:55F9 1116 from Las Vegas at the gate
11:00DL 3507 to Shreveport leaves the gate
21 h 05 apart on the timetable, overnight
DL 3507 leaves 21 h 05 after F9 1116 arrives on the timetable: more than half a day, so not a connection we count.