FR 5569 then UA 229 at Dublin
Rome → Dublin → Washington
Timetable, Dublin time
14:25FR 5569 from Rome at the gate
12:05UA 229 to Washington leaves the gate
21 h 40 apart on the timetable, overnight
UA 229 leaves 21 h 40 after FR 5569 arrives on the timetable: more than half a day, so not a connection we count.