SFO Airport Code, San Francisco International Airport
SFO is the IATA airport code for San Francisco International Airport, the main international gateway for San Francisco, United States. Pilots and air traffic control use its ICAO code, KSFO.
What airport is SFO?
SFO is the IATA airport code for San Francisco International Airport, in San Francisco, United States. The same airport has the ICAO code KSFO.
It is a major hub, ranked number 46 by scheduled connections in the open dataset. Its ICAO code KSFO begins with K, the prefix ICAO assigns to the contiguous United States.
| IATA airport code | SFO |
|---|---|
| ICAO airport code | KSFO |
| Airport | San Francisco International Airport |
| City | San Francisco |
| Country | United States |
| Main airlines | UA, VX, US |
| Runways | 4 |
Airport data comes from OurAirports (public domain), regenerated here on . How we build this · Data and sources.
Where is SFO airport located?
San Francisco International Airport (SFO) is in San Francisco, United States, at coordinates 37.61981, -122.37482.
It lies in the northern and western hemispheres, at 37.62° N, 122.37° W. It is close to sea level at 13 ft (4 m), typical of a coastal or low-lying airport.
Runways at SFO
It has 4 runways. The longest is 11,870 ft (3.62 km), designated 10L/28R.
Which airlines fly to SFO?
The open route dataset lists UA (United Airlines), VX (Virgin America), US (US Airways), AA (American Airlines), WN (Southwest Airlines), DL (Delta Air Lines) as operating carriers on nonstop routes touching San Francisco International Airport.
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Where the SFO code comes from
SFO compresses San FranciscO into three letters, keeping the S, F and final O. It is one of the codes that reads naturally enough that airlines and locals use it as a word in itself. The airport sits in San Mateo County, a reminder that a code names a market, not a city boundary.
Curious why codes look the way they do? Read how airport codes work.
Frequently asked questions
What is the IATA code for San Francisco International Airport?
The IATA code for San Francisco International Airport in San Francisco is SFO. It is the three-letter code on tickets, baggage tags and departure boards.
What is the 3-letter code for San Francisco?
The 3-letter IATA code for San Francisco International Airport in San Francisco is SFO.
What is the ICAO code for San Francisco International Airport?
The ICAO code for San Francisco International Airport is KSFO. Pilots and air traffic control use it, while airlines and booking systems use the IATA code SFO.
What is the difference between SFO and KSFO?
SFO is the IATA code used for tickets and baggage. KSFO is the ICAO code used by pilots and air traffic control for the same airport, San Francisco International Airport.
Read more about San Francisco International Airport on Wikipedia →
Nearby and related airports
Other airports in United States and the wider region:
Popular routes from SFO
Distance and typical flight time from San Francisco International Airport to other airports it connects with:
All airports in United States · Busiest airports worldwide · SFO as JSON