AA 2154 then AA 2487 at DFW
Monterrey → Dallas-Fort Worth → St Louis
Timetable, Dallas-Fort Worth time
15:27AA 2154 from Monterrey at the gate
18:00AA 2487 to St Louis leaves the gate
2 h 33 apart on the timetable
The last days
AA 2154 and AA 2487 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.