CI 5234 then AA 797 at O'Hare
Anchorage → Chicago → Boston
Timetable, Chicago time
19:25CI 5234 from Anchorage at the gate
15:16AA 797 to Boston leaves the gate
19 h 51 apart on the timetable, overnight
AA 797 leaves 19 h 51 after CI 5234 arrives on the timetable: more than half a day, so not a connection we count.