F9 1263 then DL 5245 at Atlanta
Detroit → Atlanta → Knoxville
Timetable, Atlanta time
09:20F9 1263 from Detroit at the gate
08:11DL 5245 to Knoxville leaves the gate
22 h 51 apart on the timetable, overnight
DL 5245 leaves 22 h 51 after F9 1263 arrives on the timetable: more than half a day, so not a connection we count.