UA 4594 then AA 4920 at O'Hare
Roanoke → Chicago → Milwaukee
Timetable, Chicago time
07:14UA 4594 from Roanoke at the gate
13:20AA 4920 to Milwaukee leaves the gate
6 h 06 apart on the timetable
The last days
UA 4594 and AA 4920 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.