Airports are often compared by passenger numbers, flights, or cargo traffic. However, another fascinating way to measure an airport is by its total land area. Some airports occupy enormous areas of land, with runways, terminals, taxiways, cargo facilities, parking areas, and large amounts of land reserved for future development.
The largest airports by land area are found across several countries, with Saudi Arabia, the United States, Malaysia, Türkiye, and China represented among the world’s largest airport sites.
It is important to note that airport-size rankings can vary because different sources may count airport property, operational land, undeveloped reserve land, or the wider airport site differently. The figures below use published total airport/site areas, prioritizing airport operators and government sources where available.
The ranking is based on total land/site area rather than passenger traffic. For example, Denver International Airport currently operates on 34,000 acres, equivalent to about 137.8 km².
1. King Fahd International Airport – 776 km²
Location: Dammam, Saudi Arabia
IATA Code: DMM
Land Area: 776 km²
King Fahd International Airport is the world’s largest airport by total land area. Located near Dammam in Saudi Arabia’s Eastern Province, the airport covers an extraordinary 776 square kilometers. Saudi government sources identify its total area as 776 km².
Its enormous footprint is largely associated with the vast amount of land surrounding its operational facilities. The airport includes passenger facilities, runways, taxiways, cargo infrastructure, parking, and additional land within its airport property.
The airport opened under its current name in 1999 and has two main parallel runways, each approximately 4,000 meters long.
2. King Khalid International Airport – 225 km²
Location: Riyadh, Saudi Arabia
IATA Code: RUH
Land Area: 225 km²
King Khalid International Airport is another enormous Saudi Arabian airport. The airport’s official website states that it occupies approximately 225 km² and is located about 35 kilometers from central Riyadh.
The airport opened in 1983 and features five passenger terminals, a Royal Terminal, a central control tower, and two parallel runways. Each runway is approximately 4,260 meters long according to the airport operator.
Data note: Some published Saudi government material has reported a larger figure of 375 km² for King Khalid International Airport. Because of this difference in reported boundaries, airport-size rankings can place the airport differently. This article uses the 225 km² figure published by the airport operator.
3. Denver International Airport – 137.8 km²
Location: Colorado, United States
IATA Code: DEN
Land Area: 137.8 km²
Denver International Airport is the largest airport in the United States by land area and one of the world’s most recognizable aviation facilities.
The airport operates on approximately 34,000 acres, or 137.8 square kilometers. Denver’s official airport information describes the property as about 53 square miles and notes that the site is larger than the city boundaries of several major U.S. cities.
Its huge site provides room for multiple runways, terminals, aircraft operations, ground transportation, and future expansion.
4. King Abdulaziz International Airport – 105 km²
Location: Jeddah, Saudi Arabia
IATA Code: JED
Land Area: about 105 km²
King Abdulaziz International Airport serves Jeddah and is an important gateway for travelers heading toward Makkah and the holy sites.
Saudi government information estimates the airport’s total area at approximately 105 km².
One of its most notable facilities is the Hajj and Umrah Terminal complex, which plays an important role in handling pilgrims. The airport also includes Terminal 1 and the North Terminal.
Its combination of extensive land, major passenger facilities, and specialized pilgrimage infrastructure makes it one of the world’s largest airport sites.
5. Kuala Lumpur International Airport – 100 km²
Location: Sepang, Malaysia
IATA Code: KUL
Land Area: 100 km²
Kuala Lumpur International Airport, commonly known as KLIA, is one of Southeast Asia’s largest aviation facilities.
The airport site covers approximately 100 square kilometers. Technical information about KLIA lists its land area as 100 km² and describes the airport as one of the world’s largest airport sites.
Its extensive property provides space for runways, terminals, aircraft parking, cargo operations, roads, and future development.
KLIA’s large land footprint has also supported plans for additional aviation and logistics development around the airport.
6. Istanbul Airport – 76.5 km²
Location: Istanbul, Türkiye
IATA Code: IST
Land Area: 76.5 km²
Istanbul Airport is one of the newest major airports on this list. Located on the European side of Istanbul, the airport was officially opened in 2018.
The Turkish government states that the airport project was built on approximately 76.5 million square meters, equivalent to 76.5 km².
The airport was designed as a major international hub connecting Europe, Asia, Africa, and other global destinations. Its huge site includes runways, terminal facilities, aircraft parking areas, cargo facilities, and extensive supporting infrastructure.
7. Dallas/Fort Worth International Airport – 69.7 km²
Location: Texas, United States
IATA Code: DFW
Land Area: 69.7 km²
Dallas/Fort Worth International Airport is another enormous airport in the United States. The airport covers 17,183 acres, or more than 26.9 square miles, equivalent to approximately 69.7 km².
DFW is located between the cities of Dallas and Fort Worth and functions almost like a small city, with its own police, fire, medical, and other services.
The airport currently has five terminals and seven runways, making its large land footprint particularly useful for managing extensive aircraft operations.
8. Orlando International Airport – About 53.8 km²
Location: Orlando, Florida, United States
IATA Code: MCO
Land Area: about 53.8 km²
Orlando International Airport is one of the largest airports in the United States by physical size. Its extensive property includes runways, taxiways, terminals, parking, aircraft facilities, and undeveloped or developable areas.
Published airport-size data places Orlando International at approximately 53.8 km².
The airport’s location in Central Florida makes it an important gateway for the region’s huge tourism industry, while its extensive land provides room for aviation and commercial development.
9. Beijing Daxing International Airport – About 47 km²
Location: Beijing, China
IATA Code: PKX
Land Area: about 47 km²
Beijing Daxing International Airport is famous for its spectacular starfish-shaped terminal designed by architect Zaha Hadid Architects.
The airport sits on a site of approximately 47 km². It opened in September 2019 and was developed to help meet the growing aviation needs of the Beijing-Tianjin-Hebei region.
The airport’s enormous terminal and efficient central layout were designed to reduce walking distances while allowing large numbers of aircraft to use the facility.
10. Washington Dulles International Airport – About 45.3 km²
Location: Virginia, United States
IATA Code: IAD
Land Area: about 45.3 km²
Washington Dulles International Airport completes this list. The airport’s official information states that its current land area is 11,184 acres, equivalent to approximately 45.3 km².
Dulles is well known for its distinctive terminal designed by architect Eero Saarinen. The airport’s large property provides extensive space for runways, aircraft operations, terminals, parking, and land-use buffers.
The airport was originally established on a 10,000-acre site, with additional land acquired during later development.
Why Are These Airports So Large?
The size of an airport is not determined only by its terminal buildings. A large airport may need enormous amounts of land for runways, taxiways, aircraft parking, cargo facilities, safety zones, roads, parking areas, landscaping, environmental buffers, and future expansion.
This is particularly noticeable at airports such as King Fahd International and King Khalid International, where large areas of land surround the developed airport facilities.
Another important point is that the largest airport by land area is not necessarily the busiest airport by passengers. Airport rankings can look completely different when passenger traffic, aircraft movements, or cargo volume are used instead of physical land area.
Final Thoughts
The world’s largest airports by land area demonstrate just how enormous modern aviation infrastructure can become. King Fahd International Airport stands out dramatically with its 776 km² site, while King Khalid International, Denver International, King Abdulaziz International, and Kuala Lumpur International Airport also occupy extraordinary amounts of land.
For aviation enthusiasts, comparing airports by land area offers a different perspective from traditional passenger rankings. These enormous sites show how airport planning combines transportation infrastructure with long-term expansion, safety requirements, logistics, and regional development.
