San Francisco SFO Airport Terminal Guide

terminal 1 2 3 san francisco airport guide

Last Updated on Oct 7th, 2026 by Neha Sharma, Leave a Comment

Can you remember the FIRST TIME you arrived at or departed from San Francisco International Airport (SFO)? For so many individuals around the globe, SFO is a place of beginning & end. Every day, thousands of individuals begin their journeys through SFO. Understanding the layout of these terminals is frequently difficult due to their sheer size and complexity. However, we want to make it as easy and convenient as possible for you.

Each TERMINAL is distinctly unique and has its special characteristics. For example, Terminal 1 is vibrant and bright, whereas Terminal 3 has a relaxed and cool vibe while being on one of the higher floors compared to all other terminals at SFO.

So get your boarding pass ready, enjoy yourself during your next trip!!!

San Francisco Airport (SFO) Has 4 Terminals:

Each terminal serves different airlines and flight operations. Your exact terminal and boarding area depend on your airline and flight.

SFO TerminalMain Airlines / Operations
Terminal 1Mainly domestic flights, including American Airlines, JetBlue, and Southwest
Terminal 2Alaska Airlines, Delta Air Lines, Air Canada, and other flights
Terminal 3Major United Airlines operations
International TerminalThe International Terminal is divided into two main boarding areas: Terminal A and Terminal G. International airlines include Air India, Emirates, Air China, Japan Airlines, and others

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Airline terminal assignments can change, so passengers should always confirm their terminal before traveling.

Terminal 1 San Francisco International Airport

Airport San Francisco Terminal 1 also known as the Harvey Milk Terminal, mostly handles flights within the country.

Here are some big airlines you’ll find in Terminal 1 – 

  • San Francisco Airport American Airlines Terminal :
    When you’re flying around the USA, you’ll likely be hanging out at Terminal 1 with American Airlines. They’ve got all the stuff you need, like easy check-in, quick security checks, and even machines where you can print your boarding pass. The staff is super nice, & everything moves along smoothly, so you can relax and enjoy your time at Terminal 1.
  • San Francisco Airport JetBlue Terminal :
    JetBlue flies from Terminal 1 at San Francisco International Airport. If you’re travelling with JetBlue, you’re on a comfy trip. From checking in to going on your flight, JetBlue makes sure everything goes smoothly with their helpful team and quick ways. And Terminal 1 has lots of neat stuff too, like machines where you can do your check-in and waiting areas to chill in. 
  • San Francisco Airport Southwest Airlines Terminal :
    Southwest Airlines, famous for its affordable flights around the country, flies from Terminal 1. If you’re travelling with Southwest, Check-in, security & boarding are right here at this terminal.

Terminal 2 San Francisco International Airport

Terminal 2 at the San Francisco Airport has a bunch of airlines like Alaska Airlines, Air Canada, Breeze Airways, and Delta Airlines. If you’re flying with them, you’ll have a smooth trip in this cool and easy-to-use terminal.

  • Air Canada San Francisco Airport Terminal 
    Air Canada flies from Terminal 2, making it super easy for passengers to catch their flights and enjoy all the services they need. You can check in, drop off your bags, and wait comfortably in this terminal.
  • San Francisco Airport Alaska Airlines Terminal
    Alaska Airlines is a big deal at Terminal 2 of SFO. If you’re flying with them, you’ll find self-service kiosk machines and comfy seats to chill in before your flight.
  • San Francisco Airport Delta Terminal
    Delta Airlines is a big deal at Terminal 2. If you’re flying with them, you’ll find special check-in counters, places to drop off your bags, and comfy seats to relax in. It’s easy to find your way to Delta flights at this terminal.

Terminal 3 San Francisco Airport

 San Francisco Airport Terminal 3 is all about United Airlines. So, if you’re flying with them, head over to Terminal 3. It’s a busy place where United Airlines makes sure your trip goes smoothly.

They’ve got special check-in counters, fast security checks, and comfy waiting spots. Plus, there are places to eat and shop, so you can enjoy your time before your United Airlines flight.

SFO International Terminal A:

  1. Airlines – Terminal A primarily serves domestic flights operated by airlines such as Alaska Airlines, Delta Air Lines, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, and Southwest Airlines.
  2. Facilities – Terminal A offers various facilities, including check-in counters, baggage claim areas, security checkpoints, restrooms, and seating areas.
  3. Amenities – Passengers can find a range of amenities such as dining options, retail stores, duty-free shops, ATMs, currency exchange, and charging stations.
  4. Transportation – Terminal A is connected to the airport’s AirTrain system, providing easy access to other terminals, parking areas, and the rental car centre.
  5. Accessibility – The terminal is equipped with facilities to accommodate passengers with disabilities, including accessible restrooms, elevators, and designated parking spaces.

San Francisco, SFO International Terminal G:

  1. Airlines – Terminal G is primarily used by international carriers, including Aer Lingus, Air China, EVA Air, Japan Airlines, Air india, and others, operating both international and domestic flights.
  2. Facilities – Terminal G features check-in counters, immigration and customs facilities, baggage claim areas, security checkpoints, and lounges for eligible passengers.
  3. Amenities – Similar to Terminal A, Terminal G offers various amenities such as dining options, duty-free shops, retail stores, currency exchange, ATMs, and seating areas.
  4. Transportation – Terminal G is also accessible via the airport’s AirTrain system, allowing passengers to connect to other terminals, parking areas, and transportation options.
  5. International Arrivals – Terminal G is equipped with immigration and customs facilities to process arriving international passengers, including passport control, baggage claim, and customs clearance.

Getting Around San Francisco Airport

SFO is a very large airport. Though, passengers can use the airport’s own transportation systems to travel between terminals and other airport facilities.

The AirTrain links the airport terminals to various parking areas and other key locations.

When you have a connecting flight, make sure to check your arrival and departure terminals beforehand, and also set aside enough time to go through the airport.

Looking up an SFO terminal map before your trip can also make your way from one place to another much clearer.

San Francisco Airport Maps

The layout of the SFO airport can help your understanding of the areas where your airline is located, which terminal that is the boarding gate for your flight, and even other airport facilities.

Terminal 1, Terminal 2, Terminal 3, and the International Terminal are each given their own maps with terminal layout and where boarding areas are located.

All terminal layout maps with detail are listed in San Francisco’s Airport Maps.

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cheap flights from San Francisco to India.

San Francisco Airport Parking

Passengers driving to San Francisco International Airport can choose from several parking options based on how long they plan to stay at the airport, and how close they want to park to the terminals.

SFO parking options usually involve facilities tailored not only for those who need a quick park but also for those planning a stay over a longer period:

For those driving to the airport, we recommend you check our San Francisco Airport Parking Rates and parking all the latest info on parking locations, prices, and facilities.

Food at San Francisco Airport

San Francisco International Airport offers passengers with different restaurants cafes quick-serve eateries, and other places to grab a bite.

The types of food available depend on which terminal and gate you’ll be flying out of. It is advisable to go through restaurant options available before flight to be clear which restaurants you want to go to.

To find all the restaurants and dining venues available at SFO, check our Food at San Francisco Airport page.

San Francisco Airport Lounges

San Francisco Airport offers many airport lounge facilities where qualified passengers can take a break, use the lounge to work, enjoy snacks as well as drinks, or just hang out until their flight.

Whether a person can go into certain lounges mostly depends on their flying airline, class of ticket, if the person has a lounge membership, or through other eligibility factors.

Contact the SFO lounge guide on San Francisco Airport Lounges for a detailed description of lounges’ locations, services and access.

San Francisco International Airport Information

Passengers can benefit from the various facilities and services, like transportation, baggage handling, security checks, meals, and retail stores, that San Francisco International Airport has to offer.

For general inquiries about SFO other than the terminal structure, please refer to our San Francis International Airport guide.

San Francisco Airport Airlines and Terminals

The terminal used at SFO depends on your airline and flight. Some of the major airlines operating at or associated with San Francisco International Airport include:

Because airline operations and terminal assignments can change, passengers should verify their terminal and boarding area before traveling.

Flights From San Francisco to India

San Francisco International Airport is an important departure point for travelers flying from the USA to India.

If you are an Indian and planning an international trip to India then here are our popular Flights from San Francisco to India that you might want to consider – 

Flying out of San Francisco to India?
Check prices and book online.
flights from San Francisco to Chennai

Frequently Asked Questions

Q: Which is the San Francisco Airport Emirates terminal?

A:   Emirates operates from Terminal G at San Francisco International Airport.

Q: How many terminals are there at San Francisco Airport?

A:   San Francisco has Four Terminals 

Q: Which is the San Francisco Airport Lufthansa Terminal?

A:   Lufthansa operates from Terminal I at San Francisco International Airport.

Q: Which is the San Francisco Airport domestic terminal?

A:   The domestic terminal at San Francisco Airport is Terminal 1.

Q: Which is the San Francisco Airport departure terminal?

A:   The departure terminal at San Francisco International Airport varies depending on the airline and destination.

Q: Where is the Frontier San Francisco airport terminal?

A: The Frontier Airlines terminal at San Francisco International Airport (SFO) is located in Terminal 1. In Terminal 1, there are three boarding areas: Boarding Area B, Boarding Area C, and Boarding Area D. Frontier Airlines typically operates from one of these boarding areas.

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About Neha | View Posts

Neha Sharma, a passionate travel blogger with more than 2 years and 6 months of experience, captures the beauty of the world through her words. With her adventurous spirit and a keen eye for detail, Neha takes her readers on mesmerizing journeys to exotic destinations. Her vivid descriptions and insightful tips make her the go-to guide for wanderlust seekers. Join Neha as she explores the globe, sharing her love for travel and inspiring others to go on their unforgettable adventures.

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