UA 5210 then AA 4527 at O'Hare
Saginaw → Chicago → Baltimore
Timetable, Chicago time
10:10UA 5210 from Saginaw at the gate
14:50AA 4527 to Baltimore leaves the gate
4 h 40 apart on the timetable
Today
From the airport’s board at 12:11 Chicago time
10:10UA 5210 due at the gate, no estimate yet
14:50AA 4527 due to leave, no estimate yet
4 h 40 between the gates, on these times
The last days
UA 5210 and AA 4527 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.