K4 811 then AA 482 at O'Hare
Anchorage → Chicago → Boston
Timetable, Chicago time
20:28K4 811 from Anchorage at the gate
12:06AA 482 to Boston leaves the gate
15 h 38 apart on the timetable, overnight
AA 482 leaves 15 h 38 after K4 811 arrives on the timetable: more than half a day, so not a connection we count.