UA 4500 then AF 51 at Dulles
Detroit → Washington → Paris Charles de Gaulle
Timetable, Washington time
21:17UA 4500 from Detroit at the gate
19:19AF 51 to Paris Charles de Gaulle leaves the gate
22 h 02 apart on the timetable, overnight
AF 51 leaves 22 h 02 after UA 4500 arrives on the timetable: more than half a day, so not a connection we count.