AA 3254 then AA 3663 at DFW
Kansas City → Dallas-Fort Worth → St Louis
Timetable, Dallas-Fort Worth time
10:00AA 3254 from Kansas City at the gate
20:25AA 3663 to St Louis leaves the gate
10 h 25 apart on the timetable
The last days
AA 3254 and AA 3663 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.