UA 984 then UA 785 at San Francisco
Paris Charles de Gaulle → San Francisco → Washington
Timetable, San Francisco time
11:40UA 984 from Paris Charles de Gaulle at the gatealso AC 3298, LH 8663, SN 9011
06:15UA 785 to Washington leaves the gatealso AZ 4408, NZ 9160
18 h 35 apart on the timetable, overnight
UA 785 leaves 18 h 35 after UA 984 arrives on the timetable: more than half a day, so not a connection we count.