DL 1007 then DL 4109 at Atlanta
Washington National → Atlanta → South Bend
Timetable, Atlanta time
21:41DL 1007 from Washington National at the gate
19:52DL 4109 to South Bend leaves the gate
22 h 11 apart on the timetable, overnight
DL 4109 leaves 22 h 11 after DL 1007 arrives on the timetable: more than half a day, so not a connection we count.