Flightradar24 - Live Air Traffic

Flightradar24 is the world's most popular free to use tracker app that shows live air traffic from around the world.  Flightradar24 combines data from several data sources including automatic dependent surveillance-broadcast (ADS-B), Multilateration (MLAT) and radar data. Not all aircraft are visible however. Some block their data and others have older equipment that does't transmit in the latest format. The ADS-B, MLAT and radar data is aggregated together with schedule and flight status data from airlines and airports to create a unique flight tracking experience on www.flightradar24.com and in Flightradar24 apps.