KL 1598 then U2 2516 at Schiphol
Milan Linate → Amsterdam → London Luton
Timetable, Amsterdam time
14:50KL 1598 from Milan Linate at the gate
13:40U2 2516 to London Luton leaves the gate
22 h 50 apart on the timetable, overnight
U2 2516 leaves 22 h 50 after KL 1598 arrives on the timetable: more than half a day, so not a connection we count.