UA 818 then UA 3902 at Houston
Buenos Aires → Houston → Newark
Timetable, Houston time
05:20UA 818 from Buenos Aires at the gate
11:00UA 3902 to Newark leaves the gate
5 h 40 apart on the timetable
Today
From the airport’s board at 12:01 Houston time
05:05UA 818 reached the gate15 min early
10:54UA 3902 left the gate6 min early
5 h 49 between the gates
The last days
UA 818 and UA 3902 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.