San Francisco International Airport is about 15 miles south of downtown, near Millbrae and San Bruno in San Mateo County. The second busiest airport in California (after Los Angeles International Airport), SFO sees off nonstop flights to New Zealand, Australia, Vietnam, South Korea, Alaska, Central America, India, and more. At least 40 million people travel through its gates annually. If you're one of them, maximize your time by checking out the on-site museum, chilling in one of the yoga rooms, or dining at celebrity-chef-helmed restaurants like Cat Cora’s Kitchen.