TP 233 then UA 2489 at Dulles
Lisbon → Washington → Newark
Timetable, Washington time
20:35TP 233 from Lisbon at the gate
02:29UA 2489 to Newark leaves the gate
5 h 54 apart on the timetable, overnight
The last days
TP 233 and UA 2489 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.