U2 8638 then U2 8217 at Gatwick
Munich → London → Heraklion
Timetable, London time
16:55U2 8638 from Munich at the gate
15:10U2 8217 to Heraklion leaves the gate
22 h 15 apart on the timetable, overnight
U2 8217 leaves 22 h 15 after U2 8638 arrives on the timetable: more than half a day, so not a connection we count.