<Table> In Service <Tr> <Th> Aircraft </Th> <Th> First flight </Th> <Th> Note </Th> </Tr> <Tr> <Td> Antonov An - 225 Mriya </Td> <Td> 19881221! 21 December 1988 </Td> <Td> Generally acknowledged as the largest airplane in the world, the single Antonov An - 225 is the world's heaviest aircraft ever (maximum takeoff weight greater than 640 tons) and the largest heavier - than - air aircraft (in length and wingspan) ever entering operational service . </Td> </Tr> <Tr> <Td> Airbus A380 - 800 </Td> <Td> 20050427! 27 April 2005 </Td> <Td> The largest passenger aircraft ever made . Capable of carrying 850 passengers </Td> </Tr> <Tr> <Td> Airbus A340 - 600 </Td> <Td> 20010423! 23 April 2001 </Td> <Td> The A340 - 600 has been in production since 2001, with a length of 75.30 m, the longest commercial aircraft, until surpassed by the Boeing 747 - 8 . </Td> </Tr> <Tr> <Td> Antonov An - 124 </Td> <Td> 19820000! 26 December 1982 </Td> <Td> Was the largest mass - produced aircraft in the world until the Airbus A380 was produced . Remains the world's largest military aircraft currently in service . </Td> </Tr> <Tr> <Td> Antonov An - 22 </Td> <Td> 19650227! 27 February 1965 </Td> <Td> World's largest turboprop - powered airplane </Td> </Tr> <Tr> <Td> Boeing 747 - 8 </Td> <Td> 20100208! 8 February 2010 (F variant) </Td> <Td> Lengthened version of 747 with increased wingspan . World's longest passenger aircraft at 76.4 m (0.9 m / 3 ft longer than Airbus A340) capacity of 650 passengers . </Td> </Tr> <Tr> <Td> Boeing 747 </Td> <Td> 19690209! 9 February 1969 </Td> <Td> Highest - capacity passenger aircraft until surpassed by Airbus A380 </Td> </Tr> <Tr> <Td> Boeing 747 "Dreamlifter" </Td> <Td> 20060909! 9 September 2006 </Td> <Td> 747 with enlarged fuselage for transporting Boeing 787 Dreamliner sub-assemblies (1,800 cubic metres (65,000 cu ft)) </Td> </Tr> <Tr> <Td> Tupolev Maksim Gorki </Td> <Td> 19340519! 19 May 1934 </Td> <Td> Physically the largest aircraft, and heaviest land - based aircraft of the 1930s era (63 meter / 206.7 ft wingspan, 53 tonne MTOW), required eight 900 hp Mikulin V12 engines for flight </Td> </Tr> <Tr> <Td> Dornier Do X </Td> <Td> 19290712! 12 July 1929 </Td> <Td> Largest successful flying boat and heaviest aircraft in the world from 1929 until 1942 when the Boeing B - 29 Superfortress first flew . </Td> </Tr> <Tr> <Td> Antonov An - 2 </Td> <Td> 19470831! 31 August 1947 </Td> <Td> Largest mass - produced single - engine biplane . </Td> </Tr> </Table> <Tr> <Th> Aircraft </Th> <Th> First flight </Th> <Th> Note </Th> </Tr> <Tr> <Td> Antonov An - 225 Mriya </Td> <Td> 19881221! 21 December 1988 </Td> <Td> Generally acknowledged as the largest airplane in the world, the single Antonov An - 225 is the world's heaviest aircraft ever (maximum takeoff weight greater than 640 tons) and the largest heavier - than - air aircraft (in length and wingspan) ever entering operational service . </Td> </Tr> <Tr> <Td> Airbus A380 - 800 </Td> <Td> 20050427! 27 April 2005 </Td> <Td> The largest passenger aircraft ever made . Capable of carrying 850 passengers </Td> </Tr>

Which one is the biggest airplane in the world