UA 4258 then EI 118 at Dulles
Cincinnati Northern Kentucky → Washington → Dublin
Timetable, Washington time
21:22UA 4258 from Cincinnati Northern Kentucky at the gate
20:50EI 118 to Dublin leaves the gate
23 h 28 apart on the timetable, overnight
EI 118 leaves 23 h 28 after UA 4258 arrives on the timetable: more than half a day, so not a connection we count.