{
  "response": {
    "Key": "SFO-US",
    "orig": {
      "code": "SFO",
      "type": "airport",
      "city": "San Francisco",
      "fullCity": "San Francisco, California",
      "airport": "San Francisco Intl Airport"
    },
    "dest": {
      "code": "US",
      "type": "country",
      "country": "United States"
    },
    "faq": {
      "q0": {
        "question": "Which cities in United States can I fly to from San Francisco?",
        "answer": "From San Francisco you can fly non-stop to major U.S. cities including New York, Chicago, Los Angeles, Seattle, Boston, Denver and Atlanta. One-stop connections via hubs like Dallas, Charlotte or Phoenix open up smaller cities across the country."
      },
      "q2": {
        "question": "Are there direct flights from San Francisco to United States?",
        "answer": "San Francisco is within the United States, so there are many non-stop flights to airports across the country. Major non-stop routes from SFO include Los Angeles, New York, Chicago, Seattle, and Dallas, operated by airlines like United, Alaska, American, Delta, and Southwest."
      },
      "q5": {
        "question": "How far in advance should I book flights from San Francisco to United States?",
        "answer": "For flights from San Francisco to destinations across the United States, the sweet spot is typically 4–6 weeks before departure, with the lowest fares around 45 days out.",
        "methodology": "This booking-window guidance is built from the same real flight prices found by Priceline users searching this route, re-grouped by how many days before departure each price was seen (from the departure day out to about 180 days ahead) across the route's price history. At each booking lead time we report the 25th-percentile price — the cheaper end of what travelers were quoted, rather than the rock-bottom minimum (which can be a fluke) or the average (which is pulled up by expensive last-minute fares). The buy-or-wait advice then applies a risk premium that grows as departure approaches, since seat availability shrinks and prices become less predictable; using that adjusted curve we flag windows where waiting is likely to save a meaningful amount (at least $20 or 5%) versus windows where booking now is the better call. Isolated single-day recommendations are filtered out, so the advice only reflects a window that holds for several days in a row."
      },
      "q6": {
        "question": "What are the most popular cities to visit in United States?",
        "answer": "Since you are already in the U.S., consider New York City for culture and landmarks, Los Angeles for entertainment and beaches, Chicago for architecture and food, Miami for nightlife and Latin flavor, and Washington D.C. for museums and history."
      },
      "q8": {
        "question": "Which airports in United States are best to fly into from San Francisco?",
        "answer": "Since both San Francisco and the destination are in the United States, long-haul international considerations don't apply. For domestic travel, San Francisco International itself is a major hub with extensive connections across the country."
      },
      "q12": {
        "question": "When is the best time of year to visit United States?",
        "answer": "The best time to visit the United States depends on the region, but generally April to June and September to October offer pleasant weather and smaller crowds in popular destinations like New York, San Francisco and national parks. Summer is peak season with higher prices and larger crowds."
      },
      "q13": {
        "question": "How do I get to San Francisco Intl Airport from the city center?",
        "answer": "The fastest way from downtown San Francisco to SFO is BART rapid rail, which runs directly to the airport's International Terminal and connects to all terminals via AirTrain, taking about 30 minutes and costing under $10. Ride‑share services like Uber and Lyft pick up at the Domestic Garage and offer door‑to‑door convenience for roughly $30–$50, while taxis are available at arrivals curbsides. Driving and parking are also options with on‑airport garages and a free Cell Phone Waiting Lot for pickups, but traffic can add significant time. BART is typically the most popular choice for its speed and reliability.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://flysfo.com/passengers/ground-transportation",
            "title": "Ground Transportation | San Francisco International Airport",
            "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico",
            "time_published": "2026-04-08T21:19:40Z"
          },
          {
            "url": "https://flysfo.com/de/node/10188",
            "title": "Ground Transportation | San Francisco International Airport",
            "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico",
            "time_published": "2026-04-08T21:19:40Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/SFO",
            "title": "San Francisco International Airport",
            "time_published": "2026-04-27T05:13:36Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/San_Francisco_International_Airport",
            "title": "San Francisco International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-18T07:52:09Z"
          },
          {
            "url": "https://www.flysfo.com/pt-br",
            "title": "Home Page | San Francisco International Airport",
            "time_published": "2026-01-01T00:00:00Z"
          }
        ],
        "methodology": "Airport details are drawn from the sources listed with this answer, primarily the airport operator's official website along with airline, lounge-operator and transit-authority pages, collected by our research process and refreshed periodically. Only information found in those sources is used; where a source does not cover a topic it is left out rather than guessed."
      }
    }
  }
}