San Francisco Airport – What Is San Francisco International Airport Code?
There are 2 codes for San Francisco Airport: (IATA Code and ICAO Code). San Francisco Airport Code is SFO (IATA Code) and San Francisco ICAO Code is KSFO.
San Francisco International Airport, commonly known as San Francisco Airport, is one of the busiest airports in the United States and serves as a major hub for domestic and international travel. Like every major airport in the world, it is identified by two important codes: the IATA code and the ICAO code. These codes are essential for travelers, airlines, booking systems, and cargo operations.
The official San Francisco Airport IATA Code is SFO. This three-letter IATA code is the one most passengers will see when booking flights, checking boarding passes, or looking up arrival and departure information. When you search for flights to or from San Francisco, SFO is the code that confirms you are traveling through San Francisco International Airport.
In addition to the IATA code, the airport also has an international aviation code used for navigation and air traffic purposes. The San Francisco Airport ICAO Code is KSFO. This four-letter ICAO code is used primarily by pilots, flight planners, and air traffic controllers to identify San Francisco International Airport in global flight operations.
Knowing both codes is helpful whether you are a traveler, a frequent flyer, or someone involved in logistics and aviation services. SFO (IATA) is the code you will most often encounter, while KSFO (ICAO) is crucial in technical and operational contexts. Together, these two codes ensure that San Francisco Airport is uniquely recognized across all aspects of the aviation industry.
San Francisco International Airport, located just south of downtown San Francisco, continues to rank as a leading gateway to Asia, Europe, and destinations throughout the Americas. Whether you are planning a trip, monitoring flights, or learning more about airport operations, remembering that San Francisco International Airport Code is SFO and ICAO Code is KSFO will always point you to the right place.
What City Is SFO?
San Francisco International Airport, more commonly known by its airport code SFO, is located in the city of San Francisco, California, United States. SFO is the primary airport serving the San Francisco Bay Area, which includes the cities of San Francisco, Oakland, San Jose, and surrounding Northern California communities. While the airport itself is technically situated just outside the San Francisco city limits near Millbrae and San Bruno, it is officially recognized as the international gateway for the city of San Francisco.
Travelers from all over the world use SFO when flying into Northern California. The airport is conveniently positioned only about 13 miles (21 kilometers) south of downtown San Francisco, making it easy to access the city’s business districts, cultural landmarks, and tourist attractions such as the Golden Gate Bridge, Fisherman’s Wharf, and Union Square. Because of its strategic location, SFO is not only the closest major airport to the city of San Francisco but also one of the busiest airports in the United States.
San Francisco International Airport serves the city of San Francisco, California, USA. Even though the runways and terminals are technically located in neighboring San Mateo County, the airport is officially designated as San Francisco’s main international airport and is the primary choice for millions of domestic and international travelers each year.
What Is SFO?
SFO is the official IATA code for San Francisco International Airport, one of the most important and busiest airports in the United States. The term “SFO” is a three-letter identifier created and assigned by the International Air Transport Association (IATA). Every commercial airport around the world receives a unique three-letter IATA code, making it easier for travelers, airlines, and booking systems to quickly recognize and distinguish airports during reservations, ticketing, baggage handling, and flight tracking.
The IATA code system is standardized across the global aviation industry, ensuring that no two airports share the same three-letter code. In the case of San Francisco International Airport, SFO has become a worldwide identifier that travelers see on boarding passes, flight itineraries, airport signage, and baggage tags. Whenever you fly into or out of the San Francisco Bay Area, “SFO” is the code that confirms your flight is connected to San Francisco International Airport.
Beyond being a simple identifier, the SFO code also symbolizes the airport’s reputation as a major gateway to Asia, Europe, and Latin America. Airlines, travel agencies, and passengers alike rely on this short code to avoid confusion and to streamline travel logistics. In addition, the airport also has an ICAO code, “KSFO,” which is a four-letter code primarily used by pilots and air traffic control.
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Top 7 Airport Lounges in the World
When it comes to air travel, airport lounges are no longer just a waiting area before your flight. They have become a symbol of comfort, luxury, and exclusivity for frequent travelers and those who value a premium travel experience. The top airport lounges in the world combine world-class hospitality, gourmet dining, private relaxation areas, and seamless business amenities, offering passengers a space that feels more like a five-star hotel than an airport terminal.
From first-class lounges in Asia and Europe to exclusive airline clubhouses in the Middle East and North America, these elite lounges have set a global benchmark for luxury travel. Many of them provide access to private suites, spas, fine dining curated by Michelin-starred chefs, signature cocktails, and even shower rooms for long layovers. Some go beyond expectations, offering sleeping pods, wellness centers, and entertainment zones that completely transform the way passengers spend their pre-flight hours.
Watch this video to discover the Top 7 Airport Lounges in the World and see what makes them truly unforgettable:
Travelers who are lucky enough to experience these lounges often describe them as the highlight of their journey, sometimes even rivaling the flight itself. Whether you are flying first class, holding elite frequent flyer status, or purchasing a premium lounge pass, these lounges represent the pinnacle of airport luxury worldwide.
The Airport Codes website was created with the purpose of giving travelers, aviation professionals, and researchers the most accurate and up-to-date information about airports around the world. Among the thousands of listings we maintain, one of the most frequently searched airports is San Francisco International Airport (SFO), located in San Francisco, California, United States. This major airport serves as one of the busiest hubs in the country, connecting millions of passengers every year to destinations across North America, Europe, Asia, and beyond.
Our database provides a wide range of useful details about San Francisco International Airport. This includes essential travel data such as the official San Francisco Airport code (SFO), its ICAO code (KSFO), precise latitude and longitude coordinates, physical location and address, and the official contact phone number. In addition to SFO, our database covers thousands of other airports across the United States and internationally, making it a reliable resource for anyone needing quick and verified airport information.
We take pride in regularly updating and verifying the information in our airport directory. While our team invests significant resources into ensuring accuracy, airport details such as contact numbers, operations, and policies can change over time. That is why we encourage our users to contribute. If you notice that the information for San Francisco International Airport (SFO) requires an update or correction, please let us know by using the contact form or the submission form provided on this page. Your contributions help us maintain the reliability of our global airport database.
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Airport-Codes.com is an independent, high-quality informational website that is designed to provide travelers, researchers, and aviation enthusiasts with reliable details about airports across the United States and worldwide. It is important to clarify that this website has no direct affiliation with San Francisco International Airport (SFO) or with any other airport, airline, or aviation authority. We are not officially connected to any federal, state, or local government department, agency, office, board, or commission.
The content published on Airport-Codes.com is created strictly for informational and educational purposes. While we aim to maintain accurate and updated airport data such as airport codes, contact numbers, locations, and geographic information, the details provided should not be considered as official government or airport communications. All official inquiries, requests, or travel-related questions should always be directed to the airport or airline directly.
By using this website, visitors understand that Airport-Codes.com serves solely as an independent resource for airport code lookups and aviation reference information. We do not represent San Francisco International Airport, its management, or any related governmental aviation bodies. Our mission is to provide clear, accessible airport information to the public while remaining completely independent from any airport operations or official organizations.
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