PD 1504 then QF 3271 at Toronto Pearson
Fort Lauderdale → Toronto → Chicago O'Hare
Timetable, Toronto time
12:30PD 1504 from Fort Lauderdale at the gate
18:21QF 3271 to Chicago O'Hare leaves the gate
5 h 51 apart on the timetable
The last days
PD 1504 and QF 3271 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.