UA 490 then AA 9951 at O'Hare
Cleveland → Chicago → Charlotte
Timetable, Chicago time
07:40UA 490 from Cleveland at the gate
12:00AA 9951 to Charlotte leaves the gate
4 h 20 apart on the timetable
Today
From the airport’s board at 12:11 Chicago time
07:50UA 490 reached the gate10 min late
12:00AA 9951 due to leave, no estimate yet
4 h 10 between the gates, on these times
The last days
UA 490 and AA 9951 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.