The San Francisco International Airport (800/435-9736, www.flysfo.com [1]) doesn’t sit within the City of San Francisco [2]. SFO is actually about 13 miles south in the town of Milbrae, right on the Bay. You can easily get a taxi or other ground transportation into the heart of the City from the airport. Both CalTrain [3] and BART [4] are accessible from SFO, and Some San Francisco hotels [5] offer complimentary shuttles from the airport as well. You can also rent a car here.
As one of the 30 busiest airports in the world, SFO has long check-in and security lines much of the time, and dreadful overcrowding on major travel holidays. On a normal day, plan to arrive at the airport about two hours before your domestic flight, or three hours before an international flight.
Amtrak does not run directly into San Francisco [2]. You can ride into San Jose [6], Oakland [7], or Emeryville, then take a connecting bus into the City. See the San Jose [6] section of this chapter for more information about Amtrak service into the Bay Area [2].
Greyhound (www.greyhound.com [8]) offers bus service to San Francisco [2] from all over the country. Buses usually come in to the Transbay Terminal (435 Mission St., 415/495-1569, station open 5:30 a.m.–1 a.m., ticket window open 5:30 a.m.–midnight).
Certainly you can drive into San Francisco [2]. All major highways funnel onto the City. The Bay Bridge links I-80 from the east and the Golden Gate connects Highway 1 from the north. From the south, U.S. 101 and I-280 snake up the Peninsula and into the City.
Be sure to get a detailed map and good directions to drive into San Francisco—the freeway interchanges, especially surrounding the east side of the Bay Bridge, can be confusing.
Links:
[1] http://www.flysfo.com
[2] http://www.moon.com/destinations/california/san-francisco-and-the-bay-area
[3] http://www.moon.com/destinations/california/san-francisco-and-the-bay-area/getting-there-and-around/getting-around/caltrain
[4] http://www.moon.com/destinations/california/san-francisco-and-the-bay-area/getting-there-and-around/getting-around/bart
[5] http://www.moon.com/destinations/california/san-francisco-and-the-bay-area/accommodations
[6] http://www.moon.com/destinations/california/san-francisco-and-the-bay-area/silicon-valley/san-jose
[7] http://www.moon.com/destinations/california/san-francisco-and-the-bay-area/east-bay/oakland-and-alameda
[8] http://www.greyhound.com