DL 541 then UA 2131 at Dulles
Seattle → Washington → Cleveland
Timetable, Washington time
00:20DL 541 from Seattle at the gate
22:35UA 2131 to Cleveland leaves the gate
22 h 15 apart on the timetable
UA 2131 leaves 22 h 15 after DL 541 arrives on the timetable: more than half a day, so not a connection we count.