DL 1007 then WN 1401 at Atlanta
Washington National → Atlanta → Dallas
Timetable, Atlanta time
21:41DL 1007 from Washington National at the gate
16:15WN 1401 to Dallas leaves the gate
18 h 34 apart on the timetable, overnight
WN 1401 leaves 18 h 34 after DL 1007 arrives on the timetable: more than half a day, so not a connection we count.