VA 8310 then UA 785 at San Francisco
Boston → San Francisco → Washington
Timetable, San Francisco time
11:54VA 8310 from Boston at the gate
06:15UA 785 to Washington leaves the gatealso AZ 4408, NZ 9160
18 h 21 apart on the timetable, overnight
UA 785 leaves 18 h 21 after VA 8310 arrives on the timetable: more than half a day, so not a connection we count.