DL 961 then AA 3984 at DFW
Atlanta → Dallas-Fort Worth → Rapid City
Timetable, Dallas-Fort Worth time
11:16DL 961 from Atlanta at the gate
11:13AA 3984 to Rapid City leaves the gate
23 h 57 apart on the timetable, overnight
AA 3984 leaves 23 h 57 after DL 961 arrives on the timetable: more than half a day, so not a connection we count.