VY 7610 then U2 8783 at Gatwick
Barcelona → London → Prague
Timetable, London time
13:50VY 7610 from Barcelona at the gate
06:50U2 8783 to Prague leaves the gate
17 h apart on the timetable, overnight
U2 8783 leaves 17 h after VY 7610 arrives on the timetable: more than half a day, so not a connection we count.