AA 518 then AA 3353 at O'Hare
San Diego → Chicago → Baltimore
Timetable, Chicago time
12:42AA 518 from San Diego at the gate
15:39AA 3353 to Baltimore leaves the gate
2 h 57 apart on the timetable
The last days
AA 518 and AA 3353 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.