Denver International Airport is the largest airport in the United States when it comes to square miles. DIA's massive property is a total of 54.05 square miles, or 33,917 acres.

Denver's airport has square footage equivalent to the entire city limits of Pueblo, CO., and is only three square miles less than the total square mileage of Fort Collins, which adds up to 57.05.

United Planes Sit Parked At Denver International Airport, As The Coronavirus Pandemic Severely Halts Airline Travel
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With DIA barely trailing Fort Collins, there are numerous cities that are smaller than the property of the Denver International Airport. Here are a few examples.

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