King Fahd International Airport in Saudi Arabia covers 776 km² — larger than the country of Bahrain — making it more than five times the size of the second-largest airport on Earth.
Updated September 1, 202610 ranked3 sources
Quick answer: 1. King Fahd International Airport (DMM), 2. Denver International Airport (DEN), 3. Kuala Lumpur International Airport (KUL), 4. Istanbul Airport (IST), 5. Dallas/Fort Worth International Airport (DFW), 6. Orlando International Airport (MCO), 7. Washington Dulles International Airport (IAD), 8. Beijing Daxing International Airport (PKX), 9. George Bush Intercontinental Airport (IAH), 10. Cairo International Airport (CAI).
Airport size is measured by total land area, and the world's largest airports are engineering marvels that span vast landscapes — some so big they have their own zip codes, fire departments, and power plants. The largest of them all, King Fahd International Airport in Dammam, Saudi Arabia, is so enormous that it covers more land than the entire neighboring country of Bahrain.
This list ranks the ten largest airports in the world by total land area. Notably, size does not equate to passenger volume: Atlanta's Hartsfield-Jackson, the world's busiest airport by passenger traffic, does not even make this list, while several of the airports ranked here use only a fraction of their land for active aviation.
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Total area (km²)
Total area (km²)
King Fahd International Airport (DMM)
776 km²
Denver International Airport (DEN)
135.7 km²
Kuala Lumpur International Airport (KUL)
100 km²
Istanbul Airport (IST)
76.5 km²
Dallas/Fort Worth International Airport (DFW)
69.7 km²
Orlando International Airport (MCO)
53.8 km²
Washington Dulles International Airport (IAD)
47.8 km²
Beijing Daxing International Airport (PKX)
47 km²
George Bush Intercontinental Airport (IAH)
44.5 km²
Cairo International Airport (CAI)
36.3 km²
The ranking
1
King Fahd International Airport (DMM)
King Fahd International Airport in Dammam, Saudi Arabia, is the world's largest airport by an extraordinary margin, covering 776 km² — more than the entire country of Bahrain (765 km²). Originally built as a US military airbase, the airport opened for commercial operations in 1999. Only about 5% of the land is actively used for aviation; the rest remains desert reserve for future expansion. The airport has a dedicated Royal Terminal for the Saudi royal family and a mosque that accommodates 2,000 worshippers.
Location: Dammam, Saudi ArabiaOpened: 1999IATA code: DMMRunways: 2Active use: ~5% of total area
2
Denver International Airport (DEN)
Denver International Airport covers 135.7 km² of Colorado prairie, making it the largest airport in the United States and the second-largest in the world. Opened in 1995 as a replacement for Stapleton Airport, DEN served over 82 million passengers in 2024. Its iconic white-peaked Teflon roof was designed to evoke the Rocky Mountains. The airport has six runways and its own dedicated ZIP code.
Location: Denver, Colorado, USAOpened: 1995IATA code: DENRunways: 6Active use: ~65% of total area
3
Kuala Lumpur International Airport (KUL)
Kuala Lumpur International Airport in Sepang, Malaysia, covers 100 km² of former palm oil plantations. Designed by Japanese architect Kisho Kurokawa, the airport opened in 1998 and is the primary hub for Malaysia Airlines and AirAsia. Its 'Airport in the Forest, Forest in the Airport' design philosophy integrates tropical landscaping throughout the terminals. The adjacent Sepang International Circuit hosted Formula 1 races until 2017.
Location: Sepang, MalaysiaOpened: 1998IATA code: KULRunways: 3Active use: ~40% of total area
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4
Istanbul Airport (IST)
Istanbul Airport sprawls across 76.5 km² on the European side of Istanbul, Turkey. Opened in 2018 to replace the aging Atatürk Airport, it is one of the world's newest mega-airports. Designed to eventually handle 200 million passengers annually when all phases are complete, it currently operates four runways and serves as Turkish Airlines' primary hub. The main terminal building spans 1.4 million m², one of the largest terminal buildings in the world.
Location: Istanbul, TurkeyOpened: 2018IATA code: ISTRunways: 4Active use: ~50% of total area
5
Dallas/Fort Worth International Airport (DFW)
Dallas/Fort Worth International Airport covers 69.7 km² between Dallas and Fort Worth, Texas. Larger than the island of Manhattan, DFW has been American Airlines' primary hub since its 1974 opening. It features five terminals, seven runways, and its own ZIP code, fire department, and power plant. An automated people mover called Skylink connects all terminals, and the airport is currently constructing a sixth terminal.
Location: Dallas/Fort Worth, Texas, USAOpened: 1974IATA code: DFWRunways: 7Active use: ~70% of total area
6
Orlando International Airport (MCO)
Orlando International Airport covers 53.8 km² in central Florida, making it the primary gateway to the region's theme park attractions. Opened in 1981, MCO has grown rapidly alongside Orlando's tourism industry. The airport features a distinctive terminal design with open-air atriums and an on-site intermodal train station connecting to the SunRail system and future Brightline high-speed rail.
Location: Orlando, Florida, USAOpened: 1981IATA code: MCORunways: 4Active use: ~60% of total area
7
Washington Dulles International Airport (IAD)
Washington Dulles International Airport occupies 47.8 km² in Virginia, serving the Washington, D.C., metropolitan area. Designed by architect Eero Saarinen, the airport's sweeping main terminal is an iconic piece of mid-century modern architecture. Opened in 1962, Dulles features a distinctive mobile lounge system that transports passengers between the terminal and midfield concourses.
Location: Dulles, Virginia, USAOpened: 1962IATA code: IADRunways: 4Active use: ~55% of total area
8
Beijing Daxing International Airport (PKX)
Beijing Daxing International Airport covers 47 km² and opened in 2019 as the world's newest mega-airport. Designed by Zaha Hadid Architects, the starfish-shaped terminal building spans 700,000 m² — one of the largest single-terminal buildings in the world. The airport was built to relieve congestion at Beijing Capital International and is expected to eventually handle 100 million passengers annually.
Location: Beijing, ChinaOpened: 2019IATA code: PKXRunways: 4Active use: ~45% of total area
9
George Bush Intercontinental Airport (IAH)
George Bush Intercontinental Airport in Houston covers 44.5 km² and serves as the largest hub for United Airlines. Opened in 1969, the airport has five terminals and five runways. It is a major gateway for flights to Latin America and the Caribbean, with a strong focus on energy industry travel given Houston's status as the oil and gas capital of the United States.
Location: Houston, Texas, USAOpened: 1969IATA code: IAHRunways: 5Active use: ~65% of total area
10
Cairo International Airport (CAI)
Cairo International Airport covers 36.3 km² and is the busiest airport in Africa and the Middle East. Opened in 1945 as a military airfield, it was converted to civilian use and has expanded significantly over the decades. The airport serves as the primary hub for EgyptAir and connects Africa, Europe, Asia, and the Middle East. Its three terminals handle over 25 million passengers annually.
Location: Cairo, EgyptOpened: 1945IATA code: CAIRunways: 3Active use: ~70% of total area
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Full comparison
#
Name
Location
Opened
IATA code
Runways
Active use
1
King Fahd International Airport (DMM)
Dammam, Saudi Arabia
1999
DMM
2
~5% of total area
2
Denver International Airport (DEN)
Denver, Colorado, USA
1995
DEN
6
~65% of total area
3
Kuala Lumpur International Airport (KUL)
Sepang, Malaysia
1998
KUL
3
~40% of total area
4
Istanbul Airport (IST)
Istanbul, Turkey
2018
IST
4
~50% of total area
5
Dallas/Fort Worth International Airport (DFW)
Dallas/Fort Worth, Texas, USA
1974
DFW
7
~70% of total area
6
Orlando International Airport (MCO)
Orlando, Florida, USA
1981
MCO
4
~60% of total area
7
Washington Dulles International Airport (IAD)
Dulles, Virginia, USA
1962
IAD
4
~55% of total area
8
Beijing Daxing International Airport (PKX)
Beijing, China
2019
PKX
4
~45% of total area
9
George Bush Intercontinental Airport (IAH)
Houston, Texas, USA
1969
IAH
5
~65% of total area
10
Cairo International Airport (CAI)
Cairo, Egypt
1945
CAI
3
~70% of total area
How we ranked this
Airports are ranked by total land area in square kilometers (km²), including all terminal buildings, runways, taxiways, cargo facilities, maintenance areas, and buffer land within the airport's official boundary. The data comes from the Mappr 2026 ranking, which draws on airport authority documentation, Guinness World Records, and official land surveys. Year opened refers to the date the airport began commercial operations. Rank 1 is the airport with the largest area.
FAQ
Why is King Fahd International Airport so much larger than every other airport?
King Fahd's enormous 776 km² area includes vast areas of undeveloped desert land set aside for future expansion. Only about 5% of the land is currently used for active aviation. The airport's land area is larger than the country of Bahrain (765 km²).
Does size equal passenger volume?
No. The world's busiest airport by passenger traffic, Hartsfield-Jackson Atlanta International Airport (over 100 million passengers in 2024), is not in the top ten by area. Many of the largest airports by area, especially King Fahd and Denver, use only a portion of their land for active aviation.
How is airport area measured?
Airport area includes all land within the official airport boundary — terminals, runways, taxiways, cargo facilities, maintenance hangars, parking structures, and undeveloped buffer land. The boundaries are set by the airport authority and may include land reserved for future expansion.
Will any new airports break into this ranking?
Several mega-airports are under construction or planned, including the new Manila International Airport, Navi Mumbai International Airport, and expansions of existing hubs. However, none of these are expected to approach the scale of King Fahd, Denver, or Kuala Lumpur.
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