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' LAX), 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 the gates of San Francisco's airport annually. If you're one of them, maximize your time in the first-of-its-kind airport yoga room, which provides free mats for practicing and reflecting, or by dining on something delicious in restaurants run by Cat Cora and other celebrity chefs.