DL 5207 then BR 635 at JFK
Savannah → New York → Anchorage
Timetable, New York time
13:12DL 5207 from Savannah at the gate
12:50BR 635 to Anchorage leaves the gate
23 h 38 apart on the timetable, overnight
BR 635 leaves 23 h 38 after DL 5207 arrives on the timetable: more than half a day, so not a connection we count.