AA 3381 then AA 6332 at O'Hare
Huntsville → Chicago → St Louis
Timetable, Chicago time
08:26AA 3381 from Huntsville at the gate
11:15AA 6332 to St Louis leaves the gate
2 h 49 apart on the timetable
The last days
AA 3381 and AA 6332 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.