AA 3751 then AA 9951 at O'Hare
White Plains → Chicago → Charlotte
Timetable, Chicago time
08:00AA 3751 from White Plains at the gate
12:00AA 9951 to Charlotte leaves the gate
4 h apart on the timetable
Today
From the airport’s board at 07:05 Chicago time
08:00AA 3751 due at the gate, no estimate yet
12:00AA 9951 due to leave, no estimate yet
4 h between the gates, on these times
The last days
AA 3751 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.