SFOUpdated September 25, 2026

Airlines and terminals at San Francisco airport

San Francisco · United States

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SFO · Airlines

Airlines at SFO

Airlines operating at San Francisco airport (SFO), with their terminals and main destinations. See also the airport guide for general information.

San Francisco International Airport (SFO) organizes its domestic and international flight operations across four modern terminal complexes interconnected via indoor pedestrian corridors and the free AirTrain people mover.

Harvey Milk Terminal 1

State-of-the-art terminal handling major domestic routes and select international services.

Check-in Desks and Gates B & C

  • Alaska Airlines: Check-in and boarding at B gates. Nonstop flights to Seattle, Portland, San Diego, Los Angeles, Honolulu, and over 30 destinations.
  • American Airlines: Check-in and B gates. Nonstop flights to primary hubs in Dallas/Fort Worth, Charlotte, Miami, Chicago-O'Hare, Phoenix, and Philadelphia.
  • Delta Air Lines: North lobby check-in and C gates. Regular service to Atlanta, Minneapolis/St. Paul, Salt Lake City, Detroit, Boston, and New York-JFK.
  • Hawaiian Airlines: Check-in and boarding at Concourse B with daily flights to Honolulu and Kahului (Maui).
  • JetBlue: Check-in and boarding at B gates with transcontinental routes to Boston and New York-JFK.
  • Sun Country Airlines: Ticketing and departures at Concourse B serving Minneapolis/St. Paul and seasonal routes.

Terminal 2

Serves domestic travel, Canadian transborder routes, and overflow check-in desks.

Check-in Desks and Gates D

  • Air Canada: Check-in and boarding at D gates with nonstop international flights to Toronto, Vancouver, and Montreal.
  • Breeze Airways: Point-to-point and regional domestic routes.
  • Southwest Airlines: Check-in at Terminal 2 and boarding at D gates with flights to Las Vegas, Phoenix, Denver, San Diego, Chicago-Midway, and Nashville.

Terminal 3

Primary domestic operational hub for Star Alliance flights.

Check-in Desks and Gates E & F

  • United Airlines: Centralized domestic check-in and boarding across Concourses E and F (with supplementary desks in Terminal 2 during construction phases), linking over 70 destinations across the nation.

Dianne Feinstein International Terminal

Two separate concourses handling intercontinental services and non-precleared international arrivals.

Concourse A (Gates A1-A15)

Concourse G (Gates G1-G14)

Check-in desks and gate assignments are subject to operational changes. Always confirm flight details with your carrier before traveling to the airport.

Routes and schedules change with the season and each airline's decisions. Check the airport or airline website before planning your trip.

What to sort out with your airline

Before or after your trip, these issues are handled directly with the airline, ideally well in advance:

  1. Check-in and documents: many countries require your passport to be valid for 3 to 6 months beyond your stay. Confirm it with the airline and the embassy of your destination before checking in online.
  2. Baggage: size and weight limits, prohibited items and fees for checked or excess baggage. Each fare has its own rules: read the fine print.
  3. Minors traveling alone or with one parent: some countries ask for a signed, sometimes notarized, consent. Ask about the airline's Unaccompanied Minor service, its age limits and deadlines.
  4. Reduced mobility and pregnancy: request assistance at least 48 hours in advance. Many airlines ask for a medical certificate from around week 28 of pregnancy.
  5. Pets and assistance dogs: spaces for pets in the cabin are limited, so book early. Assistance dogs usually travel free, with notice at least 48 hours ahead and the required documents.
  6. Changes and cancellations: check whether your fare allows a refund or only a voucher. If the airline changes your flight, ask about assistance (hotel, meals) and missed connections.
  7. Delays, cancellations and denied boarding: on flights covered by EU Regulation 261/2004, arriving 3 hours or more late or a last-minute cancellation may entitle you to €250 to €600 in compensation, unless there were extraordinary circumstances. Keep your boarding pass, receipts and messages.

Check your flight: departures and arrivals at SFO, updated in real time.

German Giudici

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Creator of the Aeropuertos del Mundo website network since 2007.