<P> The metropolitan area of London, England, United Kingdom is served by six international airports and several smaller airports . Together, they make the busiest airport system in the world by passenger numbers and the second - busiest by aircraft movements . In 2016, the six airports handled a total of 163,231,321 passengers . The London airports handle 60% of all the UK's air traffic . The airports serve a total of 14 domestic destinations and 396 international destinations . </P> <Table> International airports in the London airport system (2015) <Tr> <Th> Airport </Th> <Th> IATA </Th> <Th> ICAO </Th> <Th> Distance to London </Th> <Th> Total of 2015 passengers </Th> <Th> Change from 2011 </Th> <Th>% of 2015 passengers </Th> <Th>% of 2011 passengers </Th> <Th> Cargo (tonnes) </Th> <Th> Change from 2010 </Th> <Th> Aircraft movements </Th> <Th> Change from 2011 </Th> </Tr> <Tr> <Td> City </Td> <Td> LCY </Td> <Td> EGLC </Td> <Td> 14 km (9 mi) </Td> <Td> 4,319,301 </Td> <Td> 0.8% </Td> <Td> 2.78% </Td> <Td> 2.23% </Td> <Td>--</Td> <Td>--</Td> <Td> 70,781 </Td> <Td> 2.9% </Td> </Tr> <Tr> <Td> Heathrow </Td> <Td> LHR </Td> <Td> EGLL </Td> <Td> 26 km (16 mi) </Td> <Td> 74,985,748 </Td> <Td> 0.9% </Td> <Td> 48.30% </Td> <Td> 51.88% </Td> <Td> 1,484,351 </Td> <Td> 1% </Td> <Td> 475,176 </Td> <Td> 1.2% </Td> </Tr> <Tr> <Td> Gatwick </Td> <Td> LGW </Td> <Td> EGKK </Td> <Td> 45 km (28 mi) </Td> <Td> 40,269,087 </Td> <Td> 1.7% </Td> <Td> 25.94% </Td> <Td> 25.36% </Td> <Td> 88,085 </Td> <Td> 15% </Td> <Td> 256,987 </Td> <Td> 1.6% </Td> </Tr> <Tr> <Td> Luton </Td> <Td> LTN </Td> <Td> EGGW </Td> <Td> 55 km (34 mi) </Td> <Td> 12,263,505 </Td> <Td> 1.1% </Td> <Td> 7.90% </Td> <Td> 7.12% </Td> <Td> 27,905 </Td> <Td> 3% </Td> <Td> 96,797 </Td> <Td> 0.8% </Td> </Tr> <Tr> <Td> Stansted </Td> <Td> STN </Td> <Td> EGSS </Td> <Td> 63 km (39 mi) </Td> <Td> 22,519,178 </Td> <Td> 3.2% </Td> <Td> 14.50% </Td> <Td> 12.94% </Td> <Td> 202,593 </Td> <Td> 0% </Td> <Td> 143,511 </Td> <Td> 3.2% </Td> </Tr> <Tr> <Td> Southend </Td> <Td> SEN </Td> <Td> EGMC </Td> <Td> 64 km (40 mi) </Td> <Td> 900,648 </Td> <Td> 1,353.9% </Td> <Td> 0.58% </Td> <Td> 0.45% </Td> <Td> 6 </Td> <Td> 100% </Td> <Td> 27,715 </Td> <Td> 8.8% </Td> </Tr> <Tr> <Th> Total </Th> <Th> N / A </Th> <Th> N / A </Th> <Th> N / A </Th> <Th> 155,257,467 </Th> <Th> 1.02% </Th> <Th> 100.00% </Th> <Th> 100.00% </Th> <Th> 1,802,939 </Th> <Th> N / A </Th> <Th> 1,070,967 </Th> <Th> 0.11% </Th> </Tr> </Table> <Tr> <Th> Airport </Th> <Th> IATA </Th> <Th> ICAO </Th> <Th> Distance to London </Th> <Th> Total of 2015 passengers </Th> <Th> Change from 2011 </Th> <Th>% of 2015 passengers </Th> <Th>% of 2011 passengers </Th> <Th> Cargo (tonnes) </Th> <Th> Change from 2010 </Th> <Th> Aircraft movements </Th> <Th> Change from 2011 </Th> </Tr>

Which airport in london is closer to the city