AA 3389 then UA 4391 at O'Hare
Columbia Regional → Chicago → Springfield Branson National
Timetable, Chicago time
12:00AA 3389 from Columbia Regional at the gate
20:00UA 4391 to Springfield Branson National leaves the gate
8 h apart on the timetable
The last days
AA 3389 and UA 4391 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.