AV 8581 then AV 120 at Bogotá
Valledupar → Bogota → London
Timetable, Bogota time
23:40AV 8581 from Valledupar at the gate
23:25AV 120 to London leaves the gate
23 h 45 apart on the timetable, overnight
AV 120 leaves 23 h 45 after AV 8581 arrives on the timetable: more than half a day, so not a connection we count.