EI 117 then YX 3286 at Dulles
Dublin → Washington → New York LaGuardia
Timetable, Washington time
15:45EI 117 from Dublin at the gate
08:15YX 3286 to New York LaGuardia leaves the gate
16 h 30 apart on the timetable, overnight
YX 3286 leaves 16 h 30 after EI 117 arrives on the timetable: more than half a day, so not a connection we count.