DL 899 then 1I 383 at Atlanta
Los Angeles → Atlanta → Chicago Midway
Timetable, Atlanta time
06:09DL 899 from Los Angeles at the gate
15:421I 383 to Chicago Midway leaves the gate
9 h 33 apart on the timetable
The last days
DL 899 and 1I 383 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.