DL 8943 then AC 704 at Toronto Pearson
Philadelphia → Toronto → New York LaGuardia
Timetable, Toronto time
23:59DL 8943 from Philadelphia at the gate
09:20AC 704 to New York LaGuardia leaves the gate
9 h 21 apart on the timetable, overnight
The last days
DL 8943 and AC 704 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.