The metropolitan area of London, England, United Kingdom, is served by six international airports and several smaller airports. Together, these airports constitute the busiest airport system in the world by passenger numbers and the second-busiest by aircraft movements.[1]
In 2018, the six airports handled a total of 177,054,819 passengers. The London airports handle over 60% of all the UK's air traffic. The airports serve a total of 14 domestic destinations and 396 international destinations.