The San Francisco International Airport is the hub city for both United Airlines and Virgin America Airlines. However, the San Francisco International Airport caters to several different airlines throughout the day, transporting approximately 41 million passengers to and from San Francisco on an annual basis. The San Francisco International Airport has four terminals in which passengers can find all of the airlines they need for their travel needs.
The San Francisco International Airport has flights on airlines such as Delta Airlines, American Airlines, Jet Blue, KLM, Lufthansa, Hawaiian Airlines, British Airways, Air France, US Airways, United Airlines, and Southwest Airlines. Terminals 1-3 cater to all domestic flights and domestic airlines while the International Terminal is the one that handles all international airlines and flights.
Los Angeles is the most popular destination city from the San Francisco International Airport. More than 1.6 million passengers fly on American Airlines, Delta Airlines, Southwest Airlines, United Airlines, and Virgin America Airlines each year to Los Angeles. The second most popular destination from San Francisco International is Chicago. Approximately 1.1 million passengers fly here on American, United, and Virgin America flights each year. John F. Kennedy Airport in New York City is the third most flown to airport from the San Francisco International Airport each year. More than 1 million passengers head to JFK on airlines such as American, Delta, Jet Blue, United, and Virgin America annually. Other popular cities such as Las Vegas, Denver, Seattle, Dallas, San Diego, Washington D.C., and Atlanta cater to anywhere between a half million and almost 900,000 passengers each year, respectively.
The San Francisco International Airport has a number of popular international destinations as well. A little more than 900,000 people fly from San Francisco's International Airport to Hong Kong each year on Cathay Pacific, Singapore Airlines, and United Airlines. London's Heathrow Airport is the second most popular destination for passengers leaving Los Angeles. Virgin Atlantic, British Airways, and United Airways fly nearly 841,000 people to this destination each year. The third most traveled to international destination is Tokyo, with nearly 705,000 passengers flying on United and Delta Airlines each year to this destination.