{
  "response": {
    "Key": "SFO-SG",
    "orig": {
      "code": "SFO",
      "type": "airport",
      "city": "San Francisco",
      "fullCity": "San Francisco, California",
      "airport": "San Francisco Intl Airport"
    },
    "dest": {
      "code": "SG",
      "type": "country",
      "country": "Singapore"
    },
    "faq": {
      "q0": {
        "question": "Which cities in Singapore can I fly to from San Francisco?",
        "answer": "Singapore is a city-state with one main airport, Changi. From San Francisco you can fly non-stop on United or Singapore Airlines, or connect via Tokyo, Seoul or Hong Kong. All flights arrive at Changi, which is well-connected to the city by MRT."
      },
      "q1": {
        "question": "How long is the flight from San Francisco to Singapore?",
        "answer": "Nonstop flights from San Francisco to Singapore typically take about 17 to 17½ hours westbound, while the eastbound return is often closer to 15 hours. One-stop itineraries usually range from 19 to 24 hours depending on the layover."
      },
      "q2": {
        "question": "Are there direct flights from San Francisco to Singapore?",
        "answer": "Yes, you can fly non-stop from San Francisco to Singapore on United Airlines and Singapore Airlines. The flight takes about 17 to 18 hours eastbound and slightly longer westbound. If you prefer a connection, common one-stop routings go through Tokyo, Hong Kong, or Seoul, with total times starting around 20 hours."
      },
      "q3": {
        "question": "Which airlines fly from San Francisco to Singapore?",
        "answer": "From San Francisco to Singapore you can fly nonstop on United or Singapore Airlines. One-stop options include Cathay Pacific, Japan Airlines, ANA, Korean Air, and EVA Air."
      },
      "q4": {
        "question": "When is the cheapest time to fly from San Francisco to Singapore?",
        "answer": "The cheapest months to fly from San Francisco to Singapore are September, August, and October, with fares typically lowest in late summer and early fall. Midweek departures — especially Tuesdays — and midday flights tend to offer the best value, while peak summer and the December holidays are usually much more expensive. Booking about 9 to 12 weeks ahead generally yields the lowest fares.",
        "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. The cheapest day of the week and time of day to depart are drawn from the same large sample of real fares Priceline users found on this route in the last 72 hours, grouped by the day of the week and by the time-of-day window of the outbound departure, with the lowest and average price reported for each. 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 Singapore?",
        "answer": "For flights from San Francisco to Singapore, the optimal booking window is about 9 to 12 weeks before departure, when fares average around $1,040 — booking too late (under 3 weeks) or too early (over 5 months) tends to cost more.",
        "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 Singapore?",
        "answer": "Singapore is a city-state, so the entire country is one metropolitan area. Key districts include Marina Bay for luxury hotels and the skyline, Chinatown and Little India for heritage, Orchard Road for shopping and Sentosa Island for beaches and attractions."
      },
      "q7": {
        "question": "Do I need a visa to travel from San Francisco to Singapore?",
        "answer": "For United States passport holders traveling from San Francisco to Singapore, no visa is required for a short tourist visit. US citizens enjoy visa-free entry and may stay for up to 90 days.\n\nThis is general guidance to help you plan, not official immigration advice — entry rules can change and can depend on your nationality and circumstances, so please confirm the current requirements with the relevant embassy or official government source before you travel.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/Visa_policy_of_Singapore",
            "title": "Visa policy of Singapore",
            "favicon": "https://en.wikipedia.org/static/favicon/wikipedia.ico"
          },
          {
            "url": "https://www.gov.uk/foreign-travel-advice/singapore/entry-requirements",
            "title": "Singapore entry requirements — GOV.UK",
            "favicon": "https://www.gov.uk/favicon.ico"
          }
        ],
        "preopenedReferences": true,
        "stageOnly": true
      },
      "q8": {
        "question": "Which airports in Singapore are best to fly into from San Francisco?",
        "answer": "Singapore has one main international airport, Changi, which handles all long-haul flights from San Francisco. It offers excellent onward connections via its integrated rail and bus network. For resorts or regional travel, Changi is also the gateway to nearby islands and Malaysia."
      },
      "q12": {
        "question": "When is the best time of year to visit Singapore?",
        "answer": "Singapore has a consistent tropical climate, so the best time is February to April for slightly drier weather. Summer months see more rain, while the year-end holidays bring bigger crowds and higher prices."
      },
      "q13": {
        "question": "How do I get to San Francisco Intl Airport from the city center?",
        "answer": "BART rapid rail is the fastest way to reach SFO from downtown San Francisco, with trains departing directly from the International Terminal and connecting to all others via the free AirTrain. SamTrans buses (Route 292 and overnight routes) also serve the airport directly, and Caltrain requires a transfer at Millbrae. Ride‑share pickups for Lyft/Uber/Wingz are on Level 5 of the Domestic Garage, taxis wait at the center islands outside Arrivals, and several private airport shuttles (Airporters) serve the region. Driving is straightforward with on‑site parking and a free Cell Phone Waiting Lot, though BART generally avoids traffic and is the most popular choice for its speed and lower relative cost.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://flysfo.com/passengers/ground-transportation/public-transit",
            "title": "Public Transit | San Francisco International Airport",
            "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico",
            "time_published": "2026-08-17T20:51:53Z"
          },
          {
            "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": "2026-08-17T22:27:43Z"
          },
          {
            "url": "https://www.flysfo.com/passengers/ground-transportation/public-transit/ride-bart",
            "title": "BART | San Francisco International Airport",
            "favicon": "https://www.flysfo.com/themes/custom/blueskies/favicon.ico",
            "time_published": "2025-06-26T22:28:56Z"
          },
          {
            "url": "https://www.flysfo.com/",
            "title": "San Francisco International Airport | SFO Official Site",
            "favicon": "https://www.flysfo.com/themes/custom/blueskies/favicon.ico"
          },
          {
            "url": "https://flysfo.com/passengers/ground-transportation/getting-around-sfo",
            "title": "Getting Around SFO | San Francisco International Airport",
            "favicon": "https://flysfo.com/themes/custom/blueskies/favicon.ico",
            "time_published": "2026-08-11T21:48:22Z"
          }
        ]
      }
    }
  }
}