DL 2379 then DL 1509 at Atlanta
White Plains → Atlanta → Houston Hobby
Timetable, Atlanta time
08:33DL 2379 from White Plains at the gate
08:16DL 1509 to Houston Hobby leaves the gate
23 h 43 apart on the timetable, overnight
DL 1509 leaves 23 h 43 after DL 2379 arrives on the timetable: more than half a day, so not a connection we count.