Biggest Cargo Plane: Antonov-225 The An-225
Antonov-225 was entered commercial service in 2001 by Antonov Airlines, Ukraine’s national cargo airline. Antonov-225 -the unique– the world’s biggest and heaviest airplane.
AN-225 has a name of Mriya means ‘Dream’ in Ukrainian.
Antonov-225 or the AN-225 Mriya is the biggest airplane currently in service. If you want to see the biggest airplanes you can look this article about the world's biggest airplanes.