AA 3972 then UA 5207 at O'Hare
Bloomington-Normal → Chicago → Denver
Timetable, Chicago time
15:45AA 3972 from Bloomington-Normal at the gate
21:00UA 5207 to Denver leaves the gate
5 h 15 apart on the timetable
Today
From the airport’s board at 22:23 Chicago time
15:45AA 3972 due at the gate, no estimate yet
21:00UA 5207 due to leave, no estimate yet
5 h 15 between the gates, on these times
The last days
AA 3972 and UA 5207 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.