The airport code DEN is associated with which city?

The airport code DEN is associated with Denver, Colorado. Airport codes are typically derived from the name of the city or the nearest major airport. In this case, DEN stands for Denver International Airport, which is the primary airport serving the Denver area and is one of the busiest airports in the United States. Knowing airport codes is essential for identifying and understanding air travel routes, booking flights, and navigating airline services. Recognizing DEN as Denver helps travelers efficiently plan their journey to or from this vibrant city in the Rocky Mountain region.