UA 270 then LF 7657 at Dulles
Newark → Washington → Cleveland
Timetable, Washington time
11:44UA 270 from Newark at the gate
09:00LF 7657 to Cleveland leaves the gate
21 h 16 apart on the timetable, overnight
LF 7657 leaves 21 h 16 after UA 270 arrives on the timetable: more than half a day, so not a connection we count.