WN 968 then DL 1056 at Atlanta
Washington National → Atlanta → Indianapolis
Timetable, Atlanta time
17:55WN 968 from Washington National at the gate
17:30DL 1056 to Indianapolis leaves the gate
23 h 35 apart on the timetable, overnight
DL 1056 leaves 23 h 35 after WN 968 arrives on the timetable: more than half a day, so not a connection we count.