UA 6104 then AA 4483 at O'Hare
South Bend → Chicago → Baltimore
Timetable, Chicago time
19:00UA 6104 from South Bend at the gate
08:05AA 4483 to Baltimore leaves the gate
13 h 05 apart on the timetable, overnight
AA 4483 leaves 13 h 05 after UA 6104 arrives on the timetable: more than half a day, so not a connection we count.