The biggest operating aircraft in the world is the Russian giant, Antonov An-225 Mriya.
The Antonov An-225 was designed to airlift the Energia rocket’s boosters and the Buran space shuttle for the Soviet space program.
A one way trip with this plane to carry material can cost up to 1 million dollars.
The first An-225 was completed in 1988 and a second An-225 has been partially completed. The completed An-225 is in commercial operation with Antonov Airlines carrying oversized payloads.
This huge plane can carry 250 tons of cargo, in a huge cargo deck!
Moving this big plane on the ground requires 32 wheels!
It can carry ultra-heavy and oversize freight, up to 250,000 kg (550,000 lb) internally, or 200,000 kg (440,000 lb) on the upper fuselage. Cargo on the upper fuselage can be 70 metres (230 ft) long.