BR 608 then AA 2074 at O'Hare
Anchorage → Chicago → Boston
Timetable, Chicago time
20:03BR 608 from Anchorage at the gate
13:37AA 2074 to Boston leaves the gate
17 h 34 apart on the timetable, overnight
AA 2074 leaves 17 h 34 after BR 608 arrives on the timetable: more than half a day, so not a connection we count.