What is the largest airport in the US?
Denver International Airport.
Denver International is the largest, occupying an area approximately the size of Manhattan. However the busiest in terms of flights and passengers is Atlanta's Hartsfield-Jackson International.
In terms of overall size King Khalid international airport Riyadh is the largest airport in the world.In terms of square kilometers King Fahad international airport Dammam is the largest airport in the world.These two airports are located in Kingdom Of Saudi Arabia. Al-Maktoum International airport in Dubai is the world's largest airport.