AA 3575 then UA 545 at O'Hare
Springfield Branson National → Chicago → Philadelphia
Timetable, Chicago time
15:30AA 3575 from Springfield Branson National at the gate
19:45UA 545 to Philadelphia leaves the gate
4 h 15 apart on the timetable
Today
From the airport’s board at 01:37 Chicago time
15:30AA 3575 due at the gate, no estimate yet
19:45UA 545 due to leave, no estimate yet
4 h 15 between the gates, on these times
The last days
AA 3575 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.