AA 2154 then AA 2371 at DFW
Monterrey → Dallas-Fort Worth → Las Vegas
Timetable, Dallas-Fort Worth time
15:27AA 2154 from Monterrey at the gate
21:16AA 2371 to Las Vegas leaves the gate
5 h 49 apart on the timetable
The last days
AA 2154 and AA 2371 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.