SFO International Terminal G Guide (G Gates)

Terminal Overview

SFO’s International Terminal G is one of the airport’s two international concourses (the other is International A). G is heavily used by Star Alliance and other long-haul international carriers, and it’s also where you’ll often see United’s international operation using the Terminal 3–International G airside connection. If you’re departing the U.S. on a widebody or arriving from overseas, G is a common starting (or ending) point.

The experience here is classic “big international terminal”: high ceilings, lots of natural light, and a central hall feel with plenty of services nearby. The International Terminal complex houses major airport functions like international check-in, customs/immigration (for arrivals), and easy access to AirTrain and the BART station (pre-security). Expect more walking than in smaller domestic concourses, but also more seating, restrooms, and multilingual wayfinding.

Airlines & Destinations

  • Common G-gate airlines include: Aer Lingus, Air Canada, Air China, Air India, Air New Zealand, ANA, Asiana, EL AL (arrivals), Fiji Airways, Lufthansa, SAS, Singapore Airlines, SWISS, TAP Air Portugal, Turkish Airlines, EVA Air, Japan Airlines, Emirates, and United (international).
  • Typical destinations skew long-haul: major hubs across Europe (e.g., London, Frankfurt, Zurich, Lisbon, Istanbul, Dublin, Copenhagen), Asia-Pacific (e.g., Tokyo, Seoul, Singapore, Taipei, Auckland), plus select Middle East and India routes.
  • Alliance notes: You’ll find a strong Star Alliance presence (United and several partners). Some non-aligned carriers also operate here depending on schedules and seasonal changes. For Oneworld and SkyTeam, you may still see flights in the International Terminal overall, but not all will be G-side every day.

Layout & Navigation

International Terminal G is organized around the G concourse, branching off from the main International Terminal complex. You’ll move between the check-in/ticketing areas (pre-security), the security checkpoint(s), and then into the post-security concourse where the G gates spread out along the spine. Because gate assignments can shift, always confirm your gate number in the SFO app or flight monitors after you clear security.

  • Security: Security checkpoints serve the International Terminal side; arrive early during the late-afternoon/evening international departure banks when lines can build quickly.
  • Walking times: From the central post-security area into the far ends of G, plan roughly 5–15 minutes depending on your gate and crowds. If you’re connecting from the United side, the Terminal 3 F concourse to International G connector (opened in recent years) can save time versus exiting and re-clearing security.
  • Connections to other terminals: Pre-security, the free AirTrain runs 24/7 and links all terminals, parking, and rental cars (trains every ~4 minutes, running in two directions). Post-security, SFO has several connectors, including the key Terminal 3–International G link for United/Star Alliance-style connections. For longer cross-airport moves, AirTrain is usually fastest and simplest.

Amenities & Services

  • Lounges: International Terminal lounges vary by airline and location; G is known for hosting several international-carrier lounges and access options (including an Air Canada Maple Leaf Lounge in the International Terminal G area). Always verify eligibility (cabin, status, partner access) and hours, which can change with flight banks.
  • Food & shopping: Expect a mix of sit-down dining, quick service, coffee, and grab-and-go options clustered near the main post-security flow and along the concourse. For the best odds of finding something open, shop and eat closer to the central areas rather than the very last gates late at night.
  • Business basics: Plenty of seating zones with laptop-friendly tables appear throughout the concourse. If you need a quieter workspace, lounges (if you have access) are the most reliable option during peak times.
  • Family amenities: The International Terminal complex includes family-focused facilities such as nursery/mother’s rooms and companion-care style restrooms in key areas. If you can’t spot one near your gate, ask an airport ambassador or check terminal maps—family rooms are typically signed but can be tucked slightly off the main walkway.
  • Accessibility: Expect step-free routes, elevators/escalators between levels, accessible restrooms, and wheelchair assistance through your airline. Gate areas are generally spacious, which helps if you’re traveling with mobility devices.

Practical Tips

  • For long layovers: Stay near the central post-security zone where you’ll have the most dining choices, better seating variety, and easier access to customer service. If you have a long connection involving United, the airside link to Terminal 3 can open up additional food and lounge options without re-clearing security.
  • Quietest places to rest: Head toward the farther ends of the G concourse, away from the main retail clusters. Those gate areas tend to be calmer between big departure waves.
  • Power outlets: Look first at newer seating “pods” and work counters along the concourse spine—these are most likely to have built-in power/USB. If a gate area is crowded, walk 1–2 gates away; you can often find open outlets in the next seating section.
  • Wi‑Fi: SFO offers free airport Wi‑Fi. Connect to the official network and follow the on-screen prompts. If it slows during peak periods, moving closer to the central concourse (or into a lounge) often improves stability.