U2 8244 then U2 849 at Gatwick
Thessaloniki → London → Inverness
Timetable, London time
19:55U2 8244 from Thessaloniki at the gate
18:55U2 849 to Inverness leaves the gate
23 h apart on the timetable, overnight
U2 849 leaves 23 h after U2 8244 arrives on the timetable: more than half a day, so not a connection we count.