DL 55 then DL 1892 at Atlanta
Lagos → Atlanta → Chattanooga
Timetable, Atlanta time
17:52DL 55 from Lagos at the gate
14:30DL 1892 to Chattanooga leaves the gate
20 h 38 apart on the timetable, overnight
DL 1892 leaves 20 h 38 after DL 55 arrives on the timetable: more than half a day, so not a connection we count.