Which airport uses the city code DCA?

The city code DCA refers to Washington, DC Reagan National Airport. This airport is a major gateway for travelers coming to and from the nation’s capital, serving both domestic and limited international flights. It is situated just across the Potomac River from downtown Washington, making it a convenient choice for both business and leisure travelers visiting the city.

In this case, the other options do not correspond to the DCA airport code. Denver International Airport has the code DEN, while Detroit Metropolitan Wayne County Airport is known by the code DTW. El Paso International Airport, located in Texas, uses the code ELP. Understanding these designations helps in identifying and remembering the airports associated with specific city codes.