UA 255 then DL 954 at Houston
Newark → Houston → Detroit
Timetable, Houston time
10:38UA 255 from Newark at the gate
15:35DL 954 to Detroit leaves the gate
4 h 57 apart on the timetable
Today
From the airport’s board at 22:01 Houston time
10:19UA 255 reached the gate19 min early
15:38DL 954 left the gate3 min late
5 h 19 between the gates
The last days
UA 255 and DL 954 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.