CV 251 then AA 4960 at O'Hare
Anchorage → Chicago → South Bend
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
11:50AA 4960 to South Bend leaves the gate
16 h 50 apart on the timetable, overnight
AA 4960 leaves 16 h 50 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.