AA 1622 then MQ 4407 at Miami
Las Vegas → Miami → Houston
Timetable, Miami time
06:13AA 1622 from Las Vegas at the gate
10:47MQ 4407 to Houston leaves the gate
4 h 34 apart on the timetable
The last days
AA 1622 and MQ 4407 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.