DL 1408 then DL 2398 at Atlanta
San Antonio → Atlanta → New York JFK
Timetable, Atlanta time
17:19DL 1408 from San Antonio at the gate
15:16DL 2398 to New York JFK leaves the gate
21 h 57 apart on the timetable, overnight
DL 2398 leaves 21 h 57 after DL 1408 arrives on the timetable: more than half a day, so not a connection we count.