Top 10 Biggest Airports in the United States (US)

Biggest Airports in the US

Have you ever wondered how big an airport can get? The United States own some true giants in the aviation world, with some sprawling over areas larger than you might imagine. This article takes a flight path through the biggest airports in the US, focusing on their sheer size, measured by land area.

Best 10 Biggest Airports in the US

Here’s a list of 10 biggest airport in the US with the land area covered in square miles:

Airport NameStateSize (sq mi)
Denver International Airport (DIA)Colorado53.00
Anchorage Ted Stevens International Airport (ANC)Alaska46.00
Dallas/Fort Worth International Airport (DFW)Texas30.00
Orlando International Airport (MCO)Florida21.00
Washington Dulles International Airport (IAD)Virginia20.00
Memphis International Airport (MEM)Tennessee14.00
Salt Lake City International Airport (SLC)Utah14.00
Miami International Airport (MIA)Florida12.50
Seattle-Tacoma International Airport (SEA)Washington11.50
Los Angeles International Airport (LAX)California10.00

1. Denver International Airport (DIA)

The title of the 1st biggest airport in the US (and the second-largest globally) goes to Denver International Airport (DIA). It covers an area of 53 square miles, making it one of the largest airports in the world. It is about 25 miles (40 kilometers) from downtown Denver and serves as a major hub for transportation, connecting travelers from all over the world.

  • Area Covered: 135.7 km²
  • Gates: 135
  • Terminals: 6
  • Runways:

2. Dallas/Fort Worth International Airport

Dallas/Fort Worth International Airport, a 2nd biggest airport in the US, spreads across a massive 7,800 hectares (approximately 30 square miles). This immense space accommodates, status as a major hub for American Airlines, with five terminals and multiple runways catering to a high volume of domestic and international flights. DFW Airport’s central location within the US makes it a convenient transfer point for many travelers.

  • Area Covered: 69.6 km²
  • Gates: 174
  • Terminals: 5
  • Runways: 7

3. Orlando International Airport (MCO)

Orlando International (MCO) is the biggest airport in the US, covers a substantial 5,400 hectares, reflecting the immense popularity of Florida as a tourist destination. It caters to a significant number of leisure travelers, with facilities geared towards families and vacationers. MCO’s presence in Florida’s tourism industry is further enhanced by the presence of several car rental companies and easy access to theme parks.

  • Area Covered: 19.4 km²
  • Gates: 123
  • Terminals: 4
  • Runways: 5

4. Washington Dulles International Airport (IAD)

Washington Dulles International Airport (IAD) occupying 5,263 hectares is in the graph of largest airports in US by size, IAD serves as the primary international gateway to the Washington D.C. area. It prioritizes security and efficiency, catering to a large volume of diplomatic and government travel. Its strategic location near the nation’s capital makes it a crucial link for international connections.

  • Area Covered: 13.9 km²
  • Gates: 123
  • Terminals: 1
  • Runways: 4

5. Memphis International Airport (MEM)

MEM’s impressive 3,572 hectares (approximately 14 square miles) position it as a major cargo hub. FedEx Express has its global headquarters located adjacent to it, making MEM a vital center for international package distribution. This largest airport in the United States of America serves extensive cargo handling facilities and infrastructure contribute to its significant role in the global supply chain.

  • Area Covered: 7.4 km²
  • Gates: 95
  • Terminals: 3
  • Runways: 5

6. Anchorage Ted Stevens International Airport (ANC)

While the size is listed in acres (11,500) on some resources ANC Airport converting it to square miles reveals true scale – a whopping 46 square miles. This immense footprint is likely due to several factors, including Alaska’s remote location and the need for long runways to accommodate heavily loaded cargo planes traveling to and from Asia, makes it the largest airports in the US.

  • Area Covered: 13.6 km²
  • Gates: 68
  • Terminals: 1 (with concourses)
  • Runways: 4

7. Seattle-Tacoma International Airport (SEA)

SEA’s 2,964 hectares (approximately 11.5 square miles) reflect its status as a major Pacific Northwest hub. It serves as a crucial connection point for Boeing, a leading aircraft manufacturer headquartered in the Seattle area. SEA’s location also makes it a gateway to Asia and other international destinations makes it biggest air station in the US by traffic.

  • Area Covered: 9.1 km²
  • Gates: 87
  • Terminals: 2
  • Runways: 4

8. Salt Lake City International Airport (SLC)

Spanning 3,640 hectares (approximately 14 square miles), SLC the largest airport in the US plays a vital role as a connecting point for many domestic flights, particularly those traveling between the west and east coasts of the US. Salt Lake City’s position as the headquarters for Delta Air Lines also contributes to the airport’s significance. Additionally, SLC caters to winter sports enthusiasts due to its proximity to popular ski resorts.

  • Area Covered: 7.7 km²
  • Gates: 125
  • Terminals: 2
  • Runways: 3

9. Miami International Airport (MIA)

MIA’s 3,237 hectares (approximately 12.5 square miles) make it a major hub for connecting flights to Latin America and the Caribbean. The largest airport by area in US contribute to the airport’s passenger traffic. MIA’s extensive network of international carriers makes it a popular starting point for travelers heading south.

  • Area Covered: 7.1 km²
  • Gates: 137
  • Terminals: North, South, Central
  • Runways: 6

10. Los Angeles International Airport (LAX)

Los Angeles International Airport occupying 2,500 acres (approximately 10 square miles), LAX remains a giant in the US landscape. As a major gateway to Hollywood and Southern California, LAX handles a significant amount of passenger traffic, both domestic and international, also considered in the list of biggest airports in the US. The presence of multiple airlines and terminals ensures a high volume of flight options for travelers.

  • Area Covered: 14.2 km²
  • Gates: 187
  • Terminals: 9
  • Runways: 4

The top 10 biggest airports in the US by area showcase the immense scale of air travel in the country. These massive facilities play a crucial role in the nation’s economy and logistics, serving as gateways for domestic and international travel. As the aviation industry continues to evolve, it will be interesting to see how these giants adapt and whether new contenders emerge in the race for the title of the biggest airports in the US.

FAQs

What is the biggest airport in the US?

The biggest airport in the United States by land area is Denver International Airport (DIA), Colorado, sprawling over a massive 53 square miles.

What is the 2nd biggest airport in the US?

The second biggest airport in the US by land area is Dallas/Fort Worth International Airport (DFW), Texas.

What are the 3 biggest airports in the US?

The top 3 biggest airports in the US by land area are: Denver Airport (DIA)- 53 sq. miles, Dallas Airport (DFW)- 30 sq. milies and Orlando Airport (MCO), Florida approx. 21 sq. miles.

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