{
  "response": {
    "Key": "STL-PR",
    "orig": {
      "code": "STL",
      "type": "airport",
      "city": "St. Louis",
      "fullCity": "St. Louis, Missouri",
      "airport": "Lambert Intl Airport"
    },
    "dest": {
      "code": "PR",
      "type": "country",
      "country": "Puerto Rico"
    },
    "faq": {
      "q0": {
        "question": "Which cities in Puerto Rico can I fly to from St. Louis?",
        "answer": "From St. Louis you will typically connect through a major hub to San Juan, which is the main gateway. You may also find flights into Aguadilla on the west coast or Ponce on the south coast, often via San Juan or a U.S. hub. Choose San Juan for historic sites and nightlife, Aguadilla for surfing and quieter beaches, or Ponce for a relaxed city with museums."
      },
      "q1": {
        "question": "How long is the flight from St. Louis to Puerto Rico?",
        "answer": "There are no non‑stop flights from St. Louis to Puerto Rico. Flying to San Juan with one connection typically takes 6 to 8 hours southbound and about 7 to 9 hours on the return, depending on the layover city and length."
      },
      "q2": {
        "question": "Are there direct flights from St. Louis to Puerto Rico?",
        "answer": "There are usually no non-stop flights from St. Louis to Puerto Rico. Most itineraries connect through a southeastern U.S. hub such as Atlanta, Charlotte, Miami or Orlando. Total travel time typically ranges from about 5½ to 7½ hours, including the layover."
      },
      "q3": {
        "question": "Which airlines fly from St. Louis to Puerto Rico?",
        "answer": "From St. Louis to Puerto Rico, Southwest flies nonstop to San Juan. One-stop options include American, Delta, United and Spirit via their hubs."
      },
      "q4": {
        "question": "When is the cheapest time to fly from St. Louis to Puerto Rico?",
        "answer": "The cheapest months to fly from St. Louis to San Juan are September, October, and August, while peak summer (June–July) and December holidays are the most expensive. For the best fare, book about 9 to 12 weeks ahead, and aim to depart on a Saturday or Monday, ideally around midday.",
        "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. 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."
      },
      "q5": {
        "question": "How far in advance should I book flights from St. Louis to Puerto Rico?",
        "answer": "For flights from St. Louis to San Juan, the best time to book is 9 to 12 weeks ahead, when fares average around $495, with the absolute lowest fares appearing about 11 weeks 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. Stop counts, connecting hubs, and per-airline prices are drawn from a large sample of the real fares Priceline users found on this route in the last 72 hours. We group those fares by number of stops, by the hub airport a connection routes through, and by operating airline, and report each group's share of the sample alongside its lowest and median price. 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 '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."
      },
      "q6": {
        "question": "What are the most popular cities to visit in Puerto Rico?",
        "answer": "Most visitors land in San Juan for Old San Juan and vibrant culture, then explore the rainforest in El Yunque, the beaches of Rincón or Vieques, and the bioluminescent bays."
      },
      "q7": {
        "question": "Do I need a visa to travel from St. Louis to Puerto Rico?",
        "answer": "For a United States citizen, no visa is needed to travel from St. Louis to Puerto Rico: it is entry by right into one's own territory, not a visa question.\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_the_United_States",
            "title": "Visa policy of the United States",
            "favicon": "https://en.wikipedia.org/static/favicon/wikipedia.ico"
          },
          {
            "url": "https://cbp.gov/about/contact/ports/fajardo-puerto-rico-4904",
            "title": "Fajardo, Puerto Rico - 4904 | U.S. Customs and Border Protection"
          },
          {
            "url": "https://uscis.gov/archive/effects-of-puerto-rico-birth-certificate-invalidation-on-uscis-benefit-seekers",
            "title": "Effects of Puerto Rico Birth Certificate Invalidation on USCIS Benefit Seekers | USCIS"
          }
        ],
        "preopenedReferences": true,
        "stageOnly": true
      },
      "q8": {
        "question": "Which airports in Puerto Rico are best to fly into from St. Louis?",
        "answer": "From St. Louis to Puerto Rico, San Juan Luis Muñoz Marín International Airport is the primary gateway, offering the most flight options and easy connections to the rest of the island via rental car, taxi, or short flights. Aguadilla Rafael Hernández Airport in the west is a smaller alternative served by some budget carriers, ideal for beach resorts on the northwest coast. Ponce Mercedita Airport serves the south but has limited service from the mainland U.S., usually with connections through other hubs."
      },
      "q12": {
        "question": "When is the best time of year to visit Puerto Rico?",
        "answer": "For Puerto Rico, mid-April to June offers a sweet spot with lower rainfall, fewer tourists and more moderate prices than the busy winter season or the humid summer months."
      },
      "q13": {
        "question": "How do I get to Lambert Intl Airport from the city center?",
        "answer": "St. Louis Lambert International Airport is directly connected to downtown by the MetroLink light rail, which is the most economical and popular option. Ride-share services like Uber and Lyft, taxis, and hotel shuttles are also available, with driving and on-site parking (garages from $23/day, economy lots from $7/day) as an alternative. The MetroLink is generally the fastest and cheapest way to reach the airport from downtown, avoiding traffic and parking costs.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/St._Louis_Lambert_International_Airport",
            "title": "St. Louis Lambert International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-09-06T13:20:24Z"
          },
          {
            "url": "https://airport.guide/kstl/parking",
            "title": "St Louis Airport (STL) Parking Rates and Map",
            "favicon": "https://airport.guide/apple-touch-icon.png"
          },
          {
            "url": "https://www.airport.guide/kstl",
            "title": "St Louis Airport (STL) | Terminal maps | Airport guide",
            "favicon": "https://www.airport.guide/apple-touch-icon.png"
          }
        ]
      }
    }
  }
}