UA 3876 then AA 1869 at Houston
IAB → Houston → Miami
Timetable, Houston time
03:25UA 3876 from IAB at the gate
13:20AA 1869 to Miami leaves the gate
9 h 55 apart on the timetable
The last days
UA 3876 and AA 1869 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.