AA 6454 then UA 1748 at O'Hare
Grand Rapids → Chicago → Charlotte
Timetable, Chicago time
10:30AA 6454 from Grand Rapids at the gate
17:45UA 1748 to Charlotte leaves the gate
7 h 15 apart on the timetable
The last days
AA 6454 and UA 1748 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.