UA 358 then UA 4548 at Dulles
Dallas-Fort Worth → Washington → Cleveland
Timetable, Washington time
16:21UA 358 from Dallas-Fort Worth at the gate
12:50UA 4548 to Cleveland leaves the gate
20 h 29 apart on the timetable, overnight
UA 4548 leaves 20 h 29 after UA 358 arrives on the timetable: more than half a day, so not a connection we count.