Giants: The Biggest Airports in the World

There are more than a thousand civil airports in the world. Some are small and easy to navigate. Others serve over 100 million passengers a year and you dread them for the long lines and connection times. But the biggest airports in the world can often be pieces of beauty which offer plenty of entertainment to passengers.

In the list below you will see the largest airports in the world. We also have a separate article ranking the busiest airports in the world by number of passengers, so make sure you check it out.

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Which are the biggest airports in the world?

One in Africa, four in Asia, five in the US - prepare for your journey among the world’s airports with the largest area.

Perhaps because of its massive size, King Fahd can look desolate sometimes.

#1 King Fahd International Airport (DMM)

With a total area of 776 sq. km, The King Fahd International Airport, located 20km away from Dammam in the area between Qatif and Dammam, Saudi Arabia, tops the list of the 10 largest airports in the world by size.

Its total area exceeds that of the country of Bahrain!

Most of the property, however, is not put into use. In fact, only 37 square kilometers are dedicated for airport usage - that is only about 5%!

DMM is not particularly busy either - it handles about 10 million passengers a year.

The airport was opened to commercial traffic on 28 November 1999, as it was first used for military purposes. King Fahd International Airport is the main hub for Saudia (Saudi Arabian Airlines), SaudiGulf Airlines, Flynas and Aramco Aviation.

Denver International is the biggest airport in the USA and one of the busiest.

#2 Denver International Airport (DIA)

With its 135.7 sq. km, Denver International Airport ranks as the second biggest airport in the world and is the largest one in the US - bigger than the island of Manhattan! DIA is also the fifth-busiest airport in America with service to 205 destinations on five continents.

Denver International is a hub for United Airlines and Frontier and a base for Southwest Airlines.

DIA faced a lot of criticism when it opened in 1995, more than a year behind schedule. It cost an additional $3.3 billion (in today’s US dollars) than anticipated and some of its long-awaited innovative technologies were dysfunctional and later abandoned.

Denver International is perched at 1,655 m above sea-level. This is part of the reason why DIA sports the longest runway in the United States - nearly 5 km long! The extra length helps flights take off in the lower-pressure conditions of Colorado.

American Airlines' main hub is located in Dallas-Fort Worth.

#3 Dallas/Fort Worth International Airport (DFW)

Despite coming in third in the list of the largest airports by area, DFW is almost half the size of Denver International Airport and 11 times smaller than King Fahd International Airport, with an area of 69.5 sq. km.

Dallas-Fort Worth is the largest American Airlines hub, which in turn is the largest airline in the world in terms of fleet size. This makes DFW the second-largest hub in the world after Hartsfield-Jackson in Atlanta. American Airlines operates nearly 70% of all flights to and from DFW.

While Dallas-Fort Worth may be much smaller than the two biggest airports, it is still so big, it even has its own ZIP code and Postal Service city designation.

Washington Dulles is not only one of the largest airports by size, but also one of the most elegant.

#4 Washington Dulles International Airport (IAD)

Washington Dulles is the largest airport in the Baltimore-DC area but also the least busy. The airport spans 52.6 sq. km.

It was officially inaugurated in 1962 by Presidents John F. Kennedy and Dwight Eisenhower and received plenty of praise for its light and graceful architecture.

Initially, the airport’s code was DIA. This often caused confusion as Ronald Reagan Washington National Airport’s code, only a few miles away, was DCA. Thus, Dulles took IAD and Denver International later became DIA.

Together with Newark Airport, Washington Dulles is one of United Airlines’ two hubs on the East Coast. United accommodates 61.1% of all passengers on IAD. Many of them travel to the over 125 international destinations served by Washington Dulles.

#5 Orlando International Airport (MCO)

Orlando International, the fourth largest airport worldwide, used to be an Airforce base until the end of the Vietnam War in 1975. Since then, it has been transformed to a civil-only airport and today is the third biggest airport in the US.

The airport occupies an area of 50.9 sq. km.

With 27% of passengers on their services, Southwest has by far the largest market share at MCO, almost as much as Delta and American Airlines combined.

The airport is the main hub for Silver Airways and is a focus city for JetBlue, Southwest Airlines, Spirit Airlines.

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#6 Beijing Daxing International Airport (PKX)

Beijing Daxing Airport, with its 40.5 sq. km, is the largest single-building airport in the world. It was opened in 2019 and has become the main aviation hub for three major Chinese airlines – Air China, China Southern Airlines (ZNH) and China Eastern Airlines (CIAH) (CEA).

PKX has only one terminal but it is the largest single-building terminal in the world, with five concourses and resembling a starfish from the sky, with four runways.

Apart from Beijing Daxing, Beijing is served by Beijing Capital International Airport as well.

#7 George Bush Intercontinental Airport (IAH)

Formerly known as Houston Intercontinental Airport, IAH is the fifth largest airport in the US and the sixth biggest in the world.

The airport is located about 37 kilometers north of Downtown Houston. The formerly known Houston Intercontinental Airport covers 40.5 sq. km, with a total of five runways.

This is the second biggest United Airlines hub in the US after Chicago O’Hare. True to its name, the airport has connections to 180 international destinations. It is the airport with the highest number of destinations in Mexico - over 30!

#8 Shanghai Pudong International Airport (PVG)

Shanghai Pudong is not only the second biggest Asian airport, the seventh largest airport in the world but also the eighth busiest airport, serving international passenger traffic of 76 million.

Located about 30 kilometers east of the city center, Pudong Airport occupies an area of 39.1 sq. km at an elevation of only 4 meters. The airport is also the main hub for China Eastern Airlines and Shanghai Airlines. Pudong Airport has two main and one satellite, a total of three passenger terminals.

Shanghai Pudong International Airport was opened in 1999. The construction of the airport cost 1.67 billion USD and took two years.

Cairo International Airport has the largest area among all African airports.

#9 Cairo International Airport (CAI)

Cairo International Airport, with its 36.3 sq. km, is the second largest airport outside of the USA and the eighth on the list of the world’s biggest airports. In addition, it is the biggest in Africa and the continent’s second busiest (after O.R. Tambo International Airport in Johannesburg).

The airport was used as an Allied Forces base during World War II. After the end of the war, it was transformed into a civilian airport and the Egyptian Civil Aviation Authority began its administration.

Today, the airport consists of 3 terminals, three runways and is the main hub for two of Egypt’s largest carriers - EgyptAir and Nile Air.

Bangkok Suvarnabhumi has the tallest control tower in the world.

#10 Suvarnabhumi Airport (BKK)

Unofficially recognized as Bangkok Airport, Suvarnabhumi Airport is the third biggest airport in Asia, and one of the most popular as well. In 2012, only six years after its completion, Suvarnabhumi was the most popular location for Instagram photos in the world.

Bangkok Airport’s area is 32.4 sq. km, which makes it one of the largest in Southeast Asia. At 132 m, it sports one of the tallest air traffic control towers. The tower alone cost $18 million and its ATC navigates 76 flights per hour.

In Sanskrit, Suvarnabhumi means “Land of Gold”, a mythical land, not too dissimilar from the Western concept of El Dorado but much closer to Thailand.

Paris Charles de Gaulle Airport, with its 32.38 sq. km, is straight after Suvarnabhumi in the list of the largest airports in the world.

With this, we conclude our overview of the biggest airports in the world in terms of size. Airports can be ranked differently, depending on their aircraft movements, number of passengers and international flights, etc. Other very famous airports are Los Angeles International Airport, Indira Gandhi International Airport, Hong Kong International Airport, Dubai International Airport. 

If you would like to see the busiest airports in the world according to Airports Council International (ACI), check out our article on the subject as many of the busiest are not among the biggest and vice versa.

Safe travels!