AA 899 then AA 9911 at O'Hare
Los Angeles → Chicago → Dallas-Fort Worth
Timetable, Chicago time
06:00AA 899 from Los Angeles at the gate
16:00AA 9911 to Dallas-Fort Worth leaves the gate
10 h apart on the timetable
The last days
AA 899 and AA 9911 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.