AA 820 then UA 4632 at Atlanta
Dallas-Fort Worth → Atlanta → Chicago O'Hare
Timetable, Atlanta time
10:22AA 820 from Dallas-Fort Worth at the gate
11:05UA 4632 to Chicago O'Hare leaves the gate
43 min apart on the timetable
The last days
AA 820 and UA 4632 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.