Flightradar24

Flightradar24 tracks positions of aircraft in real-time and turn that data into engaging consumer and business applications. The data comes primarily from a proprietary, crowd-sourced network of 10,000+ so-called ADS-B receivers hosted by private individuals and companies all over the world and tracks in total 150,000+ flights per day. This network of ADS-B receivers is the largest in the world.