AC 7291 then PD 2123 at Toronto Pearson
Madrid → Toronto → Newark
Timetable, Toronto time
03:30AC 7291 from Madrid at the gate
09:35PD 2123 to Newark leaves the gate
6 h 05 apart on the timetable
The last days
AC 7291 and PD 2123 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.