DL 918 then DL 3507 at Atlanta
Phoenix → Atlanta → Shreveport
Timetable, Atlanta time
11:25DL 918 from Phoenix at the gate
11:00DL 3507 to Shreveport leaves the gate
23 h 35 apart on the timetable, overnight
DL 3507 leaves 23 h 35 after DL 918 arrives on the timetable: more than half a day, so not a connection we count.