This answer doesn't precisesly answer the question since the industry keeps and reports their statistics in a different manner. The Airport with the most movement which means either a take or a landing is Atlanta's Hartsfield-Jackson International airport with 994,346 movements in 2007.
Numbers are infinite, which means they have no end. For that reason, there is no biggest number.
no, numbers go up to infinity and down to negative infinity.
Alex Marko from the US. Forgot what the number is.
It depends on biggest in what context: in terms of area, population, income, wealth, debt, trade, ... The list can go on almost forever!
There are an infinite number of numbers. So there is no such thing as "the biggest number in the world". For every (finite) number you can find one bigger than it.
King Fahd International Airport in Riyadh, Saudi ArabiaKing Fahd International in Saudi Arabia is the world's biggest airport. - Denver International is second.
Dubai airport
The biggest airport structure in the world is the Boeing Assembly plant on the north side of Paine-Snohomish Airport.
The second biggest in passenger traffic is Beijing Capital Airport in China.
O'hare
NO, -Bangkok is not even in the top 20 airports in the world.
Hit route
I would say Denver International Airport in Denver,
Riyadh's "King Khalid International Airport" is the biggest airport having 484 square/miles. Answered by Shuvo Mahmud:
It isn't the biggest number,just the biggest component.
Incheon airport in South Korea looks like a rabbit. It's the biggest rabbit in the world.
King Fahd International Airport, Saudi Arabiasecond answer. Considerations such as 'biggest' are liable to confusion. Better alternatives to big are - the largest land area; the most populous, the longest.