Here are the flight paths taken by a recent Hong Kong to Newark flight according to flightradar24.
Filter on the CallSign CPA890 then
play back at the appropriate time. fr24 times are UTC so you have to work that out.
A vancouver flight has callsign CPA819 15:05 local scheduled departure, exercise left to reader.
Unfortunately I lost some resolution in the screenshots. My slow PC takes a while to do these so I won't repeat the job. The black dashed sections are automatic fill-in due to the aircraft being out of range of any ground station.
By the way not everybody knows every airport code, if you know the plaintext please use it as well as the supercool crypto.
