AM 682 then UA 3329 at O'Hare
Mexico City → Chicago → Newark
Timetable, Chicago time
23:39AM 682 from Mexico City at the gate
06:00UA 3329 to Newark leaves the gate
6 h 21 apart on the timetable, overnight
The last days
AM 682 and UA 3329 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.