Yes, you can track private flights using sophisticated public platforms like FlightAware or FlightRadar24, but there are significant privacy limitations. Most private aircraft are equipped with ADS-B (Automatic Dependent Surveillance-Broadcast) transponders that broadcast their position to ground stations and satellites. You can enter a specific tail number (e.g., N12345) into these apps to see real-time altitude, speed, and flight path. However, many high-profile individuals and corporations utilize the FAA's LADD (Limiting Aircraft Data Displayed) or PIA (Privacy ICAO Address) programs. The LADD program allows owners to request that their flight data be "blocked" from public display on sites that source data directly from the FAA. To bypass this, some hobbyists use independent, non-filtered networks like ADSBexchange, which does not censor flight data based on owner requests. Even with these tools, tracking becomes difficult if an aircraft is part of a "fractional ownership" fleet like NetJets, where the same tail number might be used by dozens of different clients, making it impossible to know exactly who is on board.