UA 3908 then UA 545 at O'Hare
Columbus (Ohio) → Chicago → Philadelphia
Timetable, Chicago time
09:34UA 3908 from Columbus (Ohio) at the gate
19:45UA 545 to Philadelphia leaves the gate
10 h 11 apart on the timetable
Today
From the airport’s board at 09:51 Chicago time
09:34UA 3908 due at the gate, no estimate yet
19:45UA 545 due to leave, no estimate yet
10 h 11 between the gates, on these times
The last days
UA 3908 and UA 545 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.