UA 3760 then VS 22 at Dulles
State College → Washington → London
Timetable, Washington time
03:21UA 3760 from State College at the gate
18:55VS 22 to London leaves the gate
15 h 34 apart on the timetable
VS 22 leaves 15 h 34 after UA 3760 arrives on the timetable: more than half a day, so not a connection we count.