CV 251 then UA 752 at O'Hare
Anchorage → Chicago → Washington National
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
12:29UA 752 to Washington National leaves the gate
17 h 29 apart on the timetable, overnight
UA 752 leaves 17 h 29 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.