B6 717 then BR 635 at JFK
Boston → New York → Anchorage
Timetable, New York time
14:16B6 717 from Boston at the gate
12:50BR 635 to Anchorage leaves the gate
22 h 34 apart on the timetable, overnight
BR 635 leaves 22 h 34 after B6 717 arrives on the timetable: more than half a day, so not a connection we count.