SQ 26 then DL 5595 at JFK
Frankfurt am Main → New York → Washington
Timetable, New York time
11:15SQ 26 from Frankfurt am Main at the gate
10:25DL 5595 to Washington leaves the gate
23 h 10 apart on the timetable, overnight
DL 5595 leaves 23 h 10 after SQ 26 arrives on the timetable: more than half a day, so not a connection we count.