The San Diego International Airport, formerly known as Lindbergh Field, sits right in the heart of San Diego. Flying in can be a real thrill as the plane passes low over Balboa Park and between buildings.
The San Diego freeway system is laid out in a grid, making it easy to get around by car anywhere in the 372 square miles of city. The trolley is a great choice if you are staying in downtown San Diego, as it stops at many destinations of interest. A machine at each trolley stop accepts cash or credit. Another option is to rent an electric smart car from Car2Go (register in advance, as it takes about five business days to get your membership card). Use the card to activate any Car2Go smart car, and when you're done, just leave it parked in any legal parking space in the city. To get to the various towns along the coast in San Diego County, or farther north, hop aboard the Amtrak Pacific Surfliner.