B6 2901 then DL 496 at JFK
Buffalo → New York → Dallas-Fort Worth
Timetable, New York time
18:43B6 2901 from Buffalo at the gate
17:45DL 496 to Dallas-Fort Worth leaves the gate
23 h 02 apart on the timetable, overnight
DL 496 leaves 23 h 02 after B6 2901 arrives on the timetable: more than half a day, so not a connection we count.