U2 2921 then KL 661 at Schiphol
Bristol → Amsterdam → Houston
Timetable, Amsterdam time
15:50U2 2921 from Bristol at the gate
09:35KL 661 to Houston leaves the gate
17 h 45 apart on the timetable, overnight
KL 661 leaves 17 h 45 after U2 2921 arrives on the timetable: more than half a day, so not a connection we count.