BR 642 then UA 3911 at O'Hare
Anchorage → Chicago → Newark
Timetable, Chicago time
08:55BR 642 from Anchorage at the gate
12:00UA 3911 to Newark leaves the gate
3 h 05 apart on the timetable
The last days
BR 642 and UA 3911 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.