UA 540 then AA 9922 at O'Hare
San Diego → Chicago → Charlotte
Timetable, Chicago time
04:34UA 540 from San Diego at the gate
10:00AA 9922 to Charlotte leaves the gate
5 h 26 apart on the timetable
Today
From the airport’s board at 07:49 Chicago time
04:34UA 540 is cancelled
10:00AA 9922 due to leave, no estimate yet
The last days
UA 540 and AA 9922 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.