Top 10 Biggest Airports in the US

Biggest Airports in the US

The biggest airports in the US are the largest in terms of size.

The United States not only has the most airports, but it also boasts some of the world’s largest airports in terms of surface area.  

The United States is home to five of the world’s top 10 airports. However, some of the country’s largest airports are not necessarily the busiest.

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The ten most significant airports in the US by surface area are listed below.

Table of Contents

1. Denver International Airport – 137.26km

Denver International Biggest Airports in the US

DIA is the biggest airport in the US and the world’s third-largest airport. It has the longest runway in North America, spanning 4.88 kilometers, and has a surface area of 135.7 square kilometers.

Its construction began in 1989 and was completed two years later, on February 28, 1995.  

Additionally, it cost $4.8 billion, nearly $2 billion more than the amount initially authorized for its development. DIA is North America’s fifth busiest airport. 

2. Dallas/Fort Worth International Airport, Texas (DFW) – 69.63km

Dallas Fort Worth International Airport

Dallas/Fort Worth is ranked second on this list, with a land area of around 70 square kilometers (27 square miles).

Furthermore, this airport, which is nearly half the size of Denver, has five terminals and 191 gates — and anyone who has visited DIA knows what a great experience it is! 

Moreover, The Skylink people mover system, which was installed as part of the modernization project, connects all terminals.

However, the airport served about 70 million passengers in 2017, ranking it the world’s 12th busiest airport. 

3. Orlando International Airport, Florida (MCO) – 54km

Orlando International Airport

It is only a half-hour drive from Walt Disney World and many other tourist attractions in this tourist-heavy area, so Orlando International Airport is a bustling place.  

MCO was founded in 1942 as McCoy US Air Force Base and converted to civilian use in 1976, covering approximately 54 square kilometers (21 square feet of space).  

Typically, the airport has two terminals and four concourses, with 129 gates. MCO receives approximately 50 million passengers each year, and the airport wants to develop another terminal shortly to accommodate the growing demand. 

4. Washington Dulles International Airport – 52.6km

Washington Dulles International Airport

Dulles Airport is 42 kilometers west of Washington, DC, in Virginia. It is considered the 4th biggest airport in the US. John Foster Dulles, the United States’ 52nd Secretary of State, is honored at the airport.  

The airport, which opened in 1962 and covers 52.6 square kilometers, is one of the largest in the country. Furthermore, it consists of the main terminal and two middle terminals, each with two concourses.  

United Airlines uses Concourses C and D exclusively, while international and domestic flights not handled by the company use the main terminal and concourses A and B.

In terms of passenger volume, Dulles Airport is the 29th busiest in North America. 

5. George Bush International Airport – 40.5km

George Bush International Airport

Houston’s George Bush Intercontinental Airport is 37 kilometers north of Huston. After Chicago’s O’Hare Airport, it’s United Airlines’ second-largest hub at 40.5 square kilometers.  

It is also Atlas Air’s hub. Although the land for the airport was purchased in 1957, it did not open until 1977 as Houston Intercontinental Airport.  

The airport was renamed George Bush in 1997 in honor of the United States’ 41st president.

IAH is the 14th busiest airport in the United States, and it was the first in North America to offer direct flights to every inhabited continent. 

6. Salt Lake City International Airport – 31.1km

Salt Lake City International Airport

Outside of Salt Lake City, the SLC airport is around 12 square miles (31 square kilometers) in area. It’s also one of the country’s largest airports.  

Furthermore, this appealing airport is linked to the Utah Transit Authority’s TRAX system, allowing citizens to park outside the airport and travel in without having to pay hefty parking costs. 

However, with roughly 24 million passengers passing through each year, SLC is likely one of the most crowded airports on our top ten list.  

The airport, which opened in 1960, has lately undergone a series of improvements to guarantee that it can handle rapidly increasing traffic. 

7. O’Hare International Airport, Chicago – 30.9km

O'Hare International Airport

With its relatively central location in the Midwest, O’Hare International Airport is a popular airport with approximately 80 million travelers per year.  

Furthermore, O’Hare is nearly the same size as SLC but has just a quarter of the foot traffic, so you can imagine how crowded it may be.

Furthermore, ORD currently has seven runways, with the development of a new eighth runway expected to be completed soon.  

In addition, there are 191 gates in all, spread over four terminals. They’re collaborating with architects to figure out how to make future traffic flow better. 

8. San Francisco International Airport – 21.07km

San Francisco Biggest Airports in the US
aerial taken 4/29/11 at SFO of jets taxiing

The San Francisco International Airport serves as a significant hub for flights to Asia and Europe. In addition, it is the US’s eighth busiest airport.  

Furthermore, it is the second busiest airport in California, after Los Angeles International Airport. With a land size of 21.07 square kilometers, SFO is located 21 kilometers south of San Francisco.

It is also owned and controlled by the City and County of San Francisco and serves the San Francisco Bay Area. 

Furthermore, as an experimental airport, the airport was opened in March 1927. Alaska Airlines’ hub and United Airlines’ maintenance hub are both located there.

There are four runways and two terminals at LAS. 

9. John F Kennedy International Airport – 21km

John F Kennedy International Airport

Another popular choice among the country’s main airports in New York City’s John F Kennedy Airport, also known as “JFK.”

This airport, which covers 8 square miles, has eight terminals and serves roughly 60 million passengers annually. 

However, Governor Cuomo is currently collaborating with the city on expanding the airport, adding more ground transit, and upgrading the runways.

Additionally, The Queens-based airport is expected to receive two new terminals due to this five-year project, which will aid with foot traffic and capacity. 

10. Detroit Metropolitan Airport – 19.6km

Detroit Metropolitan Airport

The DTW is a 19.6-square-kilometer facility near Romulus, Michigan. It serves flights to 30 international destinations and is Michigan’s busiest airport.  

Furthermore, there are 129 gates spread over two terminals and six runways. Furthermore, the McNamara Terminal is used only by Delta Air Lines and its partners, Air France and Aeromexico.  

While non-Sky Team carriers use the North Terminal. In addition, the first flight landed at DTW in February 1930, even though the airport’s construction was finished in 1929. 

Conclusively Denver International Airport, with a surface area of 137.26 km2, is the largest airport in the United States by size (33,917 acres).

It is the third busiest airport in the world after Beijing Daxing International Airport (PKX) and King Fahd International Airport (DMM). 

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