F9 1441 then OO 9908 at O'Hare
Atlanta → Chicago → Milwaukee
Timetable, Chicago time
09:00F9 1441 from Atlanta at the gate
12:00OO 9908 to Milwaukee leaves the gate
3 h apart on the timetable
The last days
F9 1441 and OO 9908 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.