{
  "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 most major U.S. cities including New York, Los Angeles, Chicago, Seattle, Denver, Boston, Miami and Honolulu. One-stop connections via hubs like Dallas, Atlanta or Charlotte reach smaller cities. Travelers choose based on region: East Coast for history and culture, West Coast for nature and tech hubs, and the Rockies or Southwest for outdoor adventures."
      },
      "q4": {
        "question": "When is the cheapest time to fly from San Francisco to United States?",
        "answer": "For flights from San Francisco to destinations across the United States, the cheapest months tend to be October, November, and August, while April and March are usually the most expensive. Booking about 4 to 6 weeks ahead typically yields the best fares, and midweek departures are generally cheaper than weekend flights. Peak summer and major holidays like Thanksgiving and Christmas usually bring higher prices.",
        "methodology": "This 'good deal' estimate shows a representative best price for each departure date across roughly a 12-month window (about 3 months back and 9 months forward). It is built from real flight prices found by Priceline users searching this route, accumulated into a price history for each departure date. Rather than weighting all of that history equally, we apply exponential time decay so recent prices dominate — a price seen yesterday counts almost in full, one from about a month ago roughly a third, and prices from a few months back very little — giving a figure that tracks today's market instead of a stale long-run average. Clear price outliers are removed before any calculation, departure dates with no observations are filled in from nearby dates, and the resulting curve is lightly smoothed so it reads as a clean seasonal trend rather than day-to-day noise. 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."
      },
      "q5": {
        "question": "How far in advance should I book flights from San Francisco to United States?",
        "answer": "For domestic flights from San Francisco, the sweet spot is typically 4 to 6 weeks ahead, with the best prices clustering between about 3 and 9 weeks before departure depending on the route.",
        "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": "The United States is vast, so domestic trips from San Francisco often highlight New York City, Los Angeles, Chicago, Miami and Las Vegas. Each offers distinct culture, food and attractions with easy flight connections from SFO."
      },
      "q7": {
        "question": "Do I need a visa to travel from San Francisco to United States?",
        "answer": "Since you are flying from San Francisco to another destination within the United States, no visa or travel authorization is required for U.S. citizens. You will only need a valid government-issued ID for domestic travel."
      },
      "q8": {
        "question": "Which airports in United States are best to fly into from San Francisco?",
        "answer": "Since you are asking about flights from San Francisco to the United States, you are already within the same country, so the question is about domestic travel rather than international long-haul flights. From SFO, the best airports to fly into depend on your final destination. For East Coast cities, airports like JFK, Newark, and Boston Logan have many direct flights and good onward train connections via Amtrak. For the Midwest, Chicago O'Hare is a major hub. For the South, Atlanta and Dallas/Fort Worth offer extensive regional connections. For resorts, consider flying into Orlando, Las Vegas, or Honolulu. Note that flight times from SFO to the East Coast are typically 5-6 hours eastbound and slightly longer westbound due to prevailing winds."
      },
      "q12": {
        "question": "When is the best time of year to visit United States?",
        "answer": "For the United States, spring (April to June) and autumn (September to early November) generally offer mild weather and fewer crowds than the busy, expensive summer months. Exact timing depends on the region you visit."
      }
    }
  }
}