GB 797 then AA 4298 at O'Hare
Cincinnati Northern Kentucky → Chicago → Champaign
Timetable, Chicago time
05:01GB 797 from Cincinnati Northern Kentucky at the gate
17:15AA 4298 to Champaign leaves the gate
12 h 14 apart on the timetable
AA 4298 leaves 12 h 14 after GB 797 arrives on the timetable: more than half a day, so not a connection we count.