The latest rankings put Tokyo's Haneda in third, South Korea's Incheon International Airport in fourth and Paris Charles de Gaulle in fifth.
The two aircraft owned by Icelandair (Boeing 757) and Korean Air (Boeing 777) collided on the tarmac at Heathrow airport at about 8 pm on Wednesday, 28 September.
The massive number of travellers during the competition will also see the Qatar capital's airport break its record for most daily departures on 25 November, with 333 scheduled.
London Heathrow Airport has asked airlines to stop selling seats on flights over the summer, after introducing a temporary cap on daily departing passengers for the very first time.
Airports Council International's latest report said the industry is struggling to deal with “significant headwinds” such as labour shortages, inflation and the risk of an economic downturn.
People around the world are anxious to travel again as pandemic restrictions are being lifted. But those planning to jump on a plane for a vacation have been frustrated by the chaos in the airline industry. In both North America and Europe, thousands of flights have been cancelled and hundreds of thousands of passengers have