There are many places to eat at San Diego International Airport. San Diego International Airport offers nonstop flights to half a dozen international destinations. San Diego Airport international flights board from Terminal 2. You can plan your trip using the information below. There are 3 San Diego Airport lounges, located in Terminal 2. San Diego International Airport has 2 passenger terminals: Terminal 1 and Terminal 2. SAN Airport is about a 7-minute drive in ideal road and traffic conditions from downtown San Diego, which is located 2 miles (3 kilometers) from the airport. San Diego International Airport serves the city of San Diego, California, and handles around 22.5 million travelers annually.