CA 1017 then AA 4548 at O'Hare
Anchorage → Chicago → Des Moines
Timetable, Chicago time
10:51CA 1017 from Anchorage at the gate
22:53AA 4548 to Des Moines leaves the gate
12 h 02 apart on the timetable
AA 4548 leaves 12 h 02 after CA 1017 arrives on the timetable: more than half a day, so not a connection we count.