{
  "response": {
    "Key": "OPO-US",
    "orig": {
      "code": "OPO",
      "type": "airport",
      "city": "Porto",
      "fullCity": "Porto, Portugal",
      "airport": "Francisco de Sá Carneiro Airport"
    },
    "dest": {
      "code": "US",
      "type": "country",
      "country": "United States"
    },
    "faq": {
      "q0": {
        "question": "Which cities in United States can I fly to from Porto?",
        "answer": "From Porto you can fly non-stop to Newark and New York JFK, and seasonally to Boston. One-stop connections via Lisbon, Madrid, or other European hubs open up most major U.S. cities. Travelers often choose New York for culture, Miami for beaches, or Los Angeles for the West Coast."
      },
      "q1": {
        "question": "How long is the flight from Porto to United States?",
        "answer": "Non-stop flights from Porto to Newark take about 8 hours eastbound and closer to 7 hours westbound. One-stop routes to other major U.S. cities like Boston or Miami typically range from 11 to 15 hours total travel time, depending on the connection."
      },
      "q2": {
        "question": "Are there direct flights from Porto to United States?",
        "answer": "Porto has a few non-stop flights to the United States, but they are seasonal or limited. For example, United Airlines sometimes operates a direct route to Newark, and TAP Air Portugal may offer seasonal service to New York or Boston. If no non-stop is available on your dates, common one-stop options connect through Lisbon, Madrid, or other European hubs, with total travel times typically between 11 and 14 hours."
      },
      "q3": {
        "question": "Which airlines fly from Porto to United States?",
        "answer": "From Porto to the US, fly TAP Air Portugal nonstop to Newark, or connect via Lisbon, Madrid, London, Paris, Amsterdam, or Frankfurt on major carriers."
      },
      "q4": {
        "question": "When is the cheapest time to fly from Porto to United States?",
        "answer": "The cheapest months to fly from Porto to the United States are April, March, and November, while peak summer months like June and the December holiday season are the most expensive. Booking about 4 to 7 weeks ahead tends to give the best fares, and midweek departures are usually cheaper than weekends. Early morning or late evening flights often offer lower prices compared to midday departures.",
        "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. For this route, fares for the requested travel direction were unavailable, so the pattern shown is derived from the reverse direction, which shares the same seasonal demand cycle."
      },
      "q5": {
        "question": "How far in advance should I book flights from Porto to United States?",
        "answer": "For flights from Porto to the United States, the optimal booking window is about 4 to 7 weeks before departure, when fares average around $859, though you can sometimes find the very lowest price around 30 days out at roughly $853.",
        "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. For this route, fares for the requested travel direction were unavailable, so the pattern shown is derived from the reverse direction, which shares the same seasonal demand cycle."
      },
      "q6": {
        "question": "What are the most popular cities to visit in United States?",
        "answer": "Since you are flying from Porto to the United States, key cities easy to reach by air include New York for its iconic landmarks and culture, Miami for beaches and nightlife, Los Angeles for entertainment and scenery, and Boston or Washington D.C. for history. Once in the U.S., domestic flights connect major hubs, but train travel is limited outside the Northeast Corridor."
      },
      "q7": {
        "question": "Do I need a visa to travel from Porto to United States?",
        "answer": "The answer depends on your citizenship, not just your departure city. If you are a U.S. citizen, you do not need a visa to enter the United States. If you are a Portuguese citizen or another foreign national, you typically need either a visa or an ESTA authorization under the Visa Waiver Program for short tourist visits. Entry rules can change, so always check current requirements before you travel."
      },
      "q8": {
        "question": "Which airports in United States are best to fly into from Porto?",
        "answer": "From Porto to the United States, direct flights are limited but you can fly nonstop to Newark, which is a strong choice for New York City and East Coast connections. If your destination is elsewhere, consider connecting in Lisbon or another European hub to reach major U.S. gateways like Miami for Florida beaches, Chicago for the Midwest, or Los Angeles for California. Newark and New York JFK offer the best onward train links via Amtrak's Northeast Corridor."
      },
      "q12": {
        "question": "When is the best time of year to visit United States?",
        "answer": "For the United States, April to June and September to October generally offer mild weather and fewer crowds in popular cities like New York, Los Angeles and Chicago. Summer is peak season with high prices, while winter varies by region."
      }
    }
  }
}