UA 4500 then AV 247 at Dulles
Detroit → Washington → Bogota
Timetable, Washington time
21:17UA 4500 from Detroit at the gate
14:30AV 247 to Bogota leaves the gate
17 h 13 apart on the timetable, overnight
AV 247 leaves 17 h 13 after UA 4500 arrives on the timetable: more than half a day, so not a connection we count.