San Diego International Airport (SDCRAA)

San Diego International Airport is the busiest single-runway commercial airport in the United States serving over 20 million passengers in 2015. Located 3 mi (4.8 km) northwest of downtown San Diego, California, United States. San Diego is the largest metropolitan area in the United States that is not an airline hub or secondary hub; however, it is currently a focus city for Southwest Airlines and Alaska Airlines. San Diego is a leading center for biotechnology, mobile...