BA 2659 then U2 871 at Gatwick
Faro → London → Glasgow
Timetable, London time
12:55BA 2659 from Faro at the gate
10:30U2 871 to Glasgow leaves the gate
21 h 35 apart on the timetable, overnight
U2 871 leaves 21 h 35 after BA 2659 arrives on the timetable: more than half a day, so not a connection we count.