UA 4584 then AA 32 at O'Hare
Moline → Chicago → San Diego
Timetable, Chicago time
16:00UA 4584 from Moline at the gate
19:45AA 32 to San Diego leaves the gate
3 h 45 apart on the timetable
The last days
UA 4584 and AA 32 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.