BA 2745 then U2 867 at Gatwick
Kalamata → London → Glasgow
Timetable, London time
16:05BA 2745 from Kalamata at the gate
14:20U2 867 to Glasgow leaves the gate
22 h 15 apart on the timetable, overnight
U2 867 leaves 22 h 15 after BA 2745 arrives on the timetable: more than half a day, so not a connection we count.