KL 1042 then DL 257 at Schiphol
Birmingham (UK) → Amsterdam → Boston
Timetable, Amsterdam time
12:50KL 1042 from Birmingham (UK) at the gate
12:15DL 257 to Boston leaves the gate
23 h 25 apart on the timetable, overnight
DL 257 leaves 23 h 25 after KL 1042 arrives on the timetable: more than half a day, so not a connection we count.