BR 683 then UA 6047 at O'Hare
Toronto Pearson → Chicago → Milwaukee
Timetable, Chicago time
15:35BR 683 from Toronto Pearson at the gate
19:47UA 6047 to Milwaukee leaves the gate
4 h 12 apart on the timetable
The last days
BR 683 and UA 6047 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.