Largest Airports in the US by Size (Top 10 Ranked by Land Area)
Published: 8 Jun 2026
The United States has some of the largest airports in the world when measured by land area, with massive aviation hubs spread across thousands of acres.
This guide explores the largest airports in the US based on total land area measured in acres, highlighting the true footprint of each airport, including runways, terminals, taxiways and expansion zones. The data is compiled from publicly available airport authority sources and official aviation records to ensure accuracy and reliability.
Top 10 Largest Airports in the US by Land Area
The largest airports in the United States are ranked by total land area in acres. This provides a clear comparison of airport footprint size across the country, based on official airport data and verified aviation records.
| Rank | Airport | State | Code | Land Area (Acres) |
|---|---|---|---|---|
| 1 | Denver International Airport | Colorado | DEN | 34,000 |
| 2 | Dallas Fort Worth International Airport | Texas | DFW | 17,207 |
| 3 | Southwest Florida International Airport | Florida | RSW | 13,555 |
| 4 | Orlando International Airport | Florida | MCO | 11,605 |
| 5 | Washington Dulles International Airport | Virginia | IAD | 11,184 |
| 6 | Kansas City International Airport | Missouri | MCI | 10,680 |
| 7 | George Bush Intercontinental Airport | Texas | IAH | 10,000 |
| 8 | Pittsburgh International Airport | Pennsylvania | PIT | 10,000 |
| 9 | Cincinnati/Northern Kentucky International Airport | Kentucky | CVG | 7,700 |
| 10 | Salt Lake City International Airport | Utah | SLC | 7,700 |
What Is the Largest Airport in the US?
The largest airport in the United States by land area is Denver International Airport (DEN), which covers approximately 34,000 acres. Its massive footprint places it among the largest airports globally when measured by physical size.
Denver International Airport was designed with long-term expansion capacity, including multiple runways, large buffer zones, and space reserved for future development, making it the largest airport in the US by size.
Why Denver International Airport Is So Large
Denver International Airport (DEN) was planned with long-term growth in mind, which is the main reason it has become the largest airport in the United States by land area.
Unlike many major airports that developed around existing urban infrastructure, Denver was built on a vast open site, allowing planners to design an airport with significant expansion capacity from the beginning.
Its large footprint supports:
- Multiple parallel runways to handle high traffic capacity
- Wide separation between facilities for safety and efficiency
- Dedicated areas reserved for future terminals and infrastructure growth
- Large buffer zones to reduce airspace and noise constraints
Because of this forward-looking design approach, Denver International Airport has more available land than any other airport in the US, making it uniquely positioned for future expansion.
How Are Airports Measured by Size?
Airport size is measured by total land area, typically expressed in acres or square miles. This includes all land owned and operated by the airport authority, not just passenger-facing facilities.
The total area generally covers multiple components, including:
- Runways and taxiways
- Passenger terminals
- Cargo and maintenance facilities
- Safety zones and buffer land
- Future expansion areas reserved for development
It is important to note that airport size (land area) is different from passenger traffic. A large airport in physical size is not always the busiest in terms of passenger volume or flight operations.
Top 10 Largest Airports in the US (Detailed Overview)
1. Denver International Airport (DEN)
Denver International Airport is the largest airport in the United States by land area and is known for its massive open-space design and future expansion capacity.
- Covers approximately 34,000 acres
- Designed with multiple long parallel runways
- Built with large expansion zones for future growth
- Located outside Denver city center to allow space expansion
2. Dallas Fort Worth International Airport (DFW)
Dallas Fort Worth International Airport is one of the largest airport complexes in the US, serving as a major hub between North Texas cities.
- Covers over 17,000 acres of land
- Ranked among the world’s busiest air travel hubs
- Has multiple terminals and extensive runway system
- Positioned between Dallas and Fort Worth
3. Southwest Florida International Airport (RSW)
Southwest Florida International Airport serves as a major gateway for Florida’s Gulf Coast tourism industry.
- Large land area compared to passenger volume
- Strong seasonal tourism traffic
- Single terminal with expansion capability
- Rapidly growing regional airport
4. Orlando International Airport (MCO)
Orlando International Airport is one of the busiest tourism-driven airports in the United States.
- Major gateway to Florida’s theme parks
- Large runway and terminal infrastructure
- Handles heavy domestic and international traffic
- Continuous expansion projects underway
5. Washington Dulles International Airport (IAD)
Washington Dulles International Airport is the primary international airport serving the US capital region.
- Large East Coast airport footprint
- Multiple runways supporting international flights
- Major hub for international connectivity
- Located in Virginia, serving Washington DC
6. Kansas City International Airport (MCI)
Kansas City International Airport is known for its large operational space and modernized terminal design.
- Recently rebuilt terminal complex
- Wide land area for future aviation growth
- Focus on passenger efficiency
- Serves Midwest regional traffic
7. George Bush Intercontinental Airport (IAH)
George Bush Intercontinental Airport is a major international gateway in Houston, Texas.
- Extensive cargo and passenger operations
- Major hub for Latin America connections
- Multiple terminals and runways
- Large international flight network
8. Pittsburgh International Airport (PIT)
Pittsburgh International Airport is a large land-area airport with modern redevelopment initiatives.
- Significant land reserve for expansion
- Modernized terminal transformation
- Balanced passenger and cargo operations
- Located in western Pennsylvania
9. Cincinnati/Northern Kentucky International Airport (CVG)
CVG is one of the largest airports in the Midwest region by land area.
- Strong cargo hub operations
- Large operational land compared to traffic volume
- Serves Cincinnati metropolitan area
- Major logistics and freight airport
10. Salt Lake City International Airport (SLC)
Salt Lake City International Airport is a key western US hub undergoing major modernization.
- Large-scale airport redevelopment project
- Expanding terminal and runway systems
- Important Delta Air Lines hub
- Serves Mountain West region
Busiest Airports in the US
The busiest airports in the United States are ranked based on annual passenger traffic, which measures the total number of travelers passing through each airport in a year.
Hartsfield–Jackson Atlanta International Airport is the busiest airport in the US, handling over 100 million passengers annually, making it the highest-traffic airport in the country.
The major high-traffic airports in the United States are:
- Hartsfield–Jackson Atlanta International Airport (ATL) – 100M+ passengers
- Los Angeles International Airport (LAX) – ~75M passengers
- Dallas Fort Worth International Airport – approximately 75 million passengers
- Chicago O’Hare International Airport (ORD) – ~80M passengers
- Denver International Airport (DEN) – ~77M passengers
Largest Airports in the US by State
The largest airports in the United States are not evenly distributed, with certain states dominating due to land availability and major aviation hubs.
- Colorado – Denver International Airport (DEN), the largest airport in the US by land area
- Texas – Dallas Fort Worth International Airport (DFW) and George Bush Intercontinental Airport (IAH)
- Florida – Orlando International Airport (MCO) and Southwest Florida International Airport (RSW)
- Virginia – Washington Dulles International Airport (IAD)
- Missouri – Kansas City International Airport (MCI)
- Pennsylvania – Pittsburgh International Airport (PIT)
- Kentucky – Cincinnati/Northern Kentucky International Airport (CVG)
- Utah – salt lake city International Airport (SLC)
Largest Airports in North America
North America is home to some of the Largest Airports in the World, with major aviation hubs located in the United States, Canada, and Mexico. When measured by total land area, airports in the United States dominate the ranking due to greater land availability and long-term expansion planning.
In terms of total land area, the largest airports in North America include:
- Denver International Airport (USA) – the largest airport in North America by land area
- Dallas Fort Worth International Airport (USA) – one of the largest aviation hubs globally
- Orlando International Airport (USA) – a major tourism-driven airport with ongoing expansion
- George Bush Intercontinental Airport (USA) – a key international gateway in Texas
- Toronto Pearson International Airport (Canada) – Canada’s largest and busiest airport
Compared to the United States, most airports in Canada and Mexico are more focused on passenger traffic efficiency rather than large-scale land expansion, which is why they generally have smaller land footprints
Key Takeaways
- Denver International Airport holds the title of the largest airport in the United States, with a land area of roughly 34,000 acres.
- Dallas Fort Worth International Airport is the second-largest airport in the country and one of the world’s most significant aviation hubs.
- Airport size rankings are determined by total land area rather than passenger numbers or flight activity.
- Hartsfield–Jackson Atlanta International Airport handles more passengers than any other US airport, making it the nation’s busiest aviation gateway.
- The United States dominates North American airport size rankings, with several of the continent’s largest airports located across the country.
READ:
Frequently Asked Questions (FAQs)
Yes, Denver International Airport is significantly larger than Hartsfield–Jackson Atlanta International Airport in terms of land area.
No, Los Angeles International Airport is not the largest airport in the US by size. It is one of the busiest airports but much smaller in land area than Denver International Airport.
No, Chicago O’Hare International Airport is not the largest by land area. It stands as one of the top busiest airports across the U.S.
Dallas Fort Worth International Airport is generally considered the second largest airport in the United States by land area.
Colorado has the largest airport in the United States, as it is home to Denver International Airport.
Hartsfield–Jackson Atlanta International Airport has one of the most extensive terminal systems in the United States.
Hartsfield–Jackson Atlanta International Airport is also among the airports with the highest number of gates in the US.
Sources & References
Airport size figures were compiled from official airport authority publications and FAA references.
- Denver International Airport (DEN) Facts & Figures
- Dallas Fort Worth International Airport (DFW) Facts & Statistics
- Federal Aviation Administration (FAA)
