UA 613 then QE 712 at Dulles
Lagos → Washington → Philadelphia
Timetable, Washington time
05:55UA 613 from Lagos at the gate
13:55QE 712 to Philadelphia leaves the gate
8 h apart on the timetable
The last days
UA 613 and QE 712 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.