UA 4600 then AA 4487 at Houston
Springfield → Houston → Chicago
Timetable, Houston time
08:19UA 4600 from Springfield at the gate
11:07AA 4487 to Chicago leaves the gate
2 h 48 apart on the timetable
The last days
UA 4600 and AA 4487 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.