The San Diego International Airport is ranked first among the busiest single runway airports in the United States and is only second in the world following London Gatwick. It provides flight services to San Diego and the airport is also thirty–two kilometers away from the border of Mexico. The airport is easily within a few miles from the business center of the city of San Diego and is accessible through the interstate. The airport has information desks, luggage counters, food and beverages, shopping centers, lounges, club rooms, and also activities for the younger people.

For those who will be using public transportation they have the option to use commuter trains, trolleys, and the metro buses. These transportation services connect people as far as Los Angeles and Orange County to San Diego. Car hires at the San Diego Airport are also available with companies such as Advantage, Alamo, Avis, Budget, Dollar, Hertz, Enterprise, National, Thrifty and Payless. Passengers can phone these cheap car hire companies for a shuttle or they can easily follow the signage that will direct them to where the shuttle services are parked. Renting a car is one way to get to the city and it is far easier to drive around the streets of San Diego.