{
  "response": {
    "Key": "IAD-SJU",
    "orig": {
      "code": "IAD",
      "type": "airport",
      "city": "Washington",
      "fullCity": "Washington, United States",
      "airport": "Washington Intl Airport"
    },
    "dest": {
      "code": "SJU",
      "type": "airport",
      "city": "San Juan",
      "fullCity": "San Juan, Puerto Rico",
      "airport": "Luis Munoz Marin Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Washington to San Juan?",
        "answer": "A nonstop flight from Washington (IAD) to San Juan (SJU) typically takes about 3 hours 45 minutes to 4 hours. With one stop, total travel time usually ranges from 5 to 7 hours, depending on the connection city."
      },
      "q2": {
        "question": "Are there visa requirements to travel from Washington to San Juan?",
        "answer": "No visa is required for this route. Flights between Washington, D.C. (IAD) and San Juan, Puerto Rico (SJU) are domestic U.S. flights. U.S. citizens and lawful permanent residents only need a valid government‑issued ID to board. Non‑U.S. citizens who are already lawfully present in the United States do not need additional visas for this domestic travel, but should carry their valid immigration documents."
      },
      "q3": {
        "question": "What are the ground transportation options in San Juan?",
        "answer": "At Luis Muñoz Marín International Airport (SJU) in San Juan, the fastest and most-used option is a taxi or ride-share like Uber, which can reach Old San Juan in about 15–20 minutes for a fixed fare around $20–$25. Public buses run by the AMA are the cheapest at $0.75, but they are slow, infrequent, and not practical for most visitors with luggage. Car rentals are widely available from all major agencies, though driving and parking in the city can be challenging. There is no direct rail link, but the Tren Urbano has a station near the airport with a shuttle connection, useful for reaching Hato Rey or Bayamón. Most travelers opt for taxis or ride-shares for their convenience and speed.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/Luis_Mu%C3%B1oz_Mar%C3%ADn_International_Airport",
            "title": "Luis Muñoz Marín International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-21T20:24:02Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/List%20of%20the%20busiest%20airports%20in%20Puerto%20Rico",
            "title": "List of the busiest airports in Puerto Rico",
            "time_published": "2025-09-20T07:52:17Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Luis_Mu%C3%B1oz_Marin_International_Airport",
            "title": "Luis Muñoz Marín International Airport - Wikipedia",
            "time_published": "2002-09-10T02:45:15Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/List_of_the_busiest_airports_in_Puerto_Rico",
            "title": "List of the busiest airports in Puerto Rico",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2025-09-20T07:52:17Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Puerto%20Rico%20Metropolitan%20Bus%20Authority",
            "title": "Puerto Rico Metropolitan Bus Authority",
            "time_published": "2026-01-08T02:20:19Z"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Washington to San Juan?",
        "answer": "The cheapest months to fly from Washington (IAD) to San Juan (SJU) are September, August, and October, with average fares around $352, $359, and $371, respectively. The most expensive months are March, December, and February, with average fares around $532, $513, and $491.",
        "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.",
        "toolsUsed": [
          "seasonal_prices"
        ]
      },
      "q5": {
        "question": "How far in advance should I book tickets from Washington to San Juan?",
        "answer": "For flights from Washington to San Juan, the optimal booking window is about 6 to 9 weeks before departure, when average fares drop to around $439. Booking around 60 days out can yield the lowest prices near $436, while last-minute tickets can cost over $590. For peak summer and holiday periods, you'll want to book earlier—closer to 9 weeks or more—since demand pushes prices higher and the best deals disappear faster.",
        "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.",
        "toolsUsed": [
          "booking_timing"
        ]
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Washington to San Juan?",
        "answer": "Yes, Frontier operates nonstop red-eye flights from Washington Dulles (IAD) to San Juan (SJU) on Thursdays and Sundays, departing at 9:07 PM. The flight arrives the same night, landing before midnight.",
        "methodology": "Red-eye flights are identified from scheduled local departure and arrival times in our flight-schedule database — built from published airline timetables and official schedule data, including U.S. Department of Transportation records for domestic routes — flagging services that depart late at night and arrive the following morning; for connecting itineraries the red-eye is based on the timing of the overnight long-haul leg.",
        "toolsUsed": [
          "redeye_flights"
        ]
      },
      "q7": {
        "question": "Which airlines usually operate this route from Washington to San Juan?",
        "answer": "United and Frontier fly nonstop from Washington Dulles to San Juan. United operates daily with 9 weekly flights and a typical median fare around $506, while Frontier flies 8 times a week on Tuesday, Thursday, Saturday, and Sunday with a median fare near $819.",
        "methodology": "Airlines and weekly frequencies are compiled from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a median fare is shown for a carrier, it reflects the real fares Priceline users found on this route in the last 72 hours.",
        "toolsUsed": [
          "route_airlines"
        ]
      },
      "q8": {
        "question": "If I need a connection, what are common layover cities between Washington and San Juan?",
        "answer": "Common layover cities include Miami, Charlotte, Atlanta and New York, offering frequent connections and efficient transfers for a competitive total travel time."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Washington to San Juan?",
        "answer": "On‑time reliability is generally good, but afternoon thunderstorms at Dulles can cause delays. Early morning flights on United tend to depart more punctually."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to San Juan?",
        "answer": "Mid-December through April offers sunny skies, low humidity, and fewer tourists outside the holiday peak."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Washington to San Juan?",
        "answer": "Since this is a domestic route, bring a Real ID–compliant driver’s license or passport, a credit or debit card for bag fees, and any vaccination certificates if required by local authorities."
      },
      "q12": {
        "question": "Which airport should I use in San Juan?",
        "answer": "San Juan has one commercial airport, Luis Muñoz Marín International Airport, which serves all flights and is located just a few miles from downtown."
      },
      "q13": {
        "question": "How do I get to Washington Intl Airport from the city center?",
        "answer": "From downtown Washington, D.C., the Silver Line Metrorail is the fastest and most popular option, but it requires a $5 nonstop Silver Line Express bus from the airport to the Wiehle-Reston East station where you catch the train. Ride‑share services like Uber and Lyft, as well as Washington Flyer taxis, offer direct door‑to‑door convenience at a higher cost. Shared vans such as SuperShuttle provide a middle ground for groups, and driving yourself is possible with on‑airport economy parking at $15 per day plus a free shuttle to the terminal.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://flydulles.com/flight-schedule-dulles-international-airport-iad",
            "title": "flydulles.com - Flight Schedule - Dulles International Airport (IAD)",
            "time_published": "2022-03-01T00:00:00Z"
          },
          {
            "url": "https://parking.flydulles.com/economy-parking",
            "title": "Dulles International Airport Parking | Economy Parking",
            "time_published": "2026-02-06T00:00:00Z"
          },
          {
            "url": "https://www.mwaa.com/ipw-2017-archived",
            "title": "IPW 2017 - Archived",
            "time_published": "2021-02-01T00:00:00Z"
          },
          {
            "url": "https://www.mwaa.com/policefireems/fire-ems/fire-ems-washington-dulles-international-airport",
            "title": "mwaa.com - Fire & EMS at Washington Dulles International Airport",
            "favicon": "https://www.mwaa.com/themes/custom/mwaa_barrio/favicon.ico",
            "time_published": "2023-09-01T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Dulles%20International%20Airport",
            "title": "Dulles International Airport",
            "time_published": "2026-04-30T14:07:38Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at San Juan airport?",
        "answer": "San Juan Airport (SJU) does not have on-site sleeping pods or capsule hotels, but there is a hotel located at the airport for uninterrupted sleep. Nearby hotels like the Residence Inn San Juan Isla Verde are just minutes away and offer shuttle service, making them convenient for overnight layovers. Sleepers should stick to landside areas and bring a mat or blanket, as bright lights and noise can make resting difficult.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/Luis_Mu%C3%B1oz_Mar%C3%ADn_International_Airport",
            "title": "Luis Muñoz Marín International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-21T20:24:02Z"
          },
          {
            "url": "https://sleepinginairports.net/guides/san-juan-airport-guide.htm",
            "title": "San Juan Airport Guide (SJU) - Sleeping in Airports",
            "favicon": "https://www.sleepinginairports.net/nitropack_static/oBWrHkPujHTPIaVWqdDSDhClXUyrYhhb/assets/images/optimized/rev-b853180/www.sleepinginairports.net/wp-content/uploads/2018/09/cropped-sia-logo-180x180.png",
            "time_published": "2018-10-02T00:00:36Z"
          },
          {
            "url": "https://activities.marriott.com/north-america/puerto-rico/utuado/activities/departure_from_old_san_juan_to_san_juan_sju_airport_by_minibus-XPVY9Q?property=PSEAL",
            "title": "Departure from Old San Juan to San Juan SJU Airport by Minibus",
            "time_published": "2026-04-10T00:00:00Z"
          },
          {
            "url": "https://activities.marriott.com/north-america/puerto-rico/san-juan/activities/san_juan_luxury_private_round_trip_transfer_sju_airport_cruise_pier_hotel-X48MR8?property=SJUXR",
            "title": "San Juan Luxury Private Round-Trip Transfer: SJU Airport - Cruise Pier - Hotel",
            "time_published": "2026-05-04T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Luis%20Mu%C3%B1oz%20Mar%C3%ADn%20International%20Airport",
            "title": "Luis Muñoz Marín International Airport",
            "time_published": "2026-04-23T21:46:13Z"
          },
          {
            "url": "https://www.marriott.com/es/en-us/hotels/sjurv-residence-inn-san-juan-isla-verde/overview/",
            "title": "Hotels San Juan Isla Verde Carolina, Puerto Rico | Residence Inn",
            "time_published": "2025-02-19T00:00:00Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Washington to San Juan?",
        "answer": "Nonstop flights from Washington Dulles to San Juan are typically operated with Boeing 737 MAX 8 and 737 MAX 9 aircraft on United, Airbus A321-100s on JetBlue, and Boeing 737-800s on Southwest. The exact aircraft can vary by day and airline, but the 737 MAX family and A321 are the most common types on this route. Connecting itineraries often use a mix of 737 MAX 8s, 737-800s, and A320-family aircraft through hubs like Orlando, Charlotte, or Miami.",
        "methodology": "Aircraft types are taken from the equipment each operating carrier schedules on this route, drawn from published airline timetables and airline equipment schedules in our flight-schedule database. They describe typical scheduled aircraft and can vary with seasonal or day-of-week assignments and last-minute equipment swaps.",
        "toolsUsed": [
          "route_aircraft"
        ]
      },
      "q18": {
        "question": "Which airline alliances serve flights from Washington to San Juan?",
        "answer": "United Airlines (Star Alliance) and Frontier Airlines (no alliance) fly nonstop from Washington Dulles to San Juan. United offers daily service while Frontier operates four days a week; other alliances may serve the route via connections.",
        "methodology": "Airlines and weekly frequencies are compiled from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a median fare is shown for a carrier, it reflects the real fares Priceline users found on this route in the last 72 hours.",
        "toolsUsed": [
          "route_airlines"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Washington?",
        "answer": "Washington Dulles (IAD) offers several airline-branded and independent lounges across its concourses. Notable options include the Virgin Atlantic Clubhouse and the Etihad Airways Lounge (also operating as the Chase Sapphire Lounge by The Club) in Concourse A, both accessible with premium cabin tickets or select credit cards. The Air France/KLM Lounge in Concourse A (open 7:30 AM–9:00 PM) admits business class passengers and Priority Pass members, though capacity restrictions may apply. In Concourse B, the Turkish Airlines Lounge welcomes business class and Star Alliance Gold travelers, while the Lufthansa Business and Senator Lounges are temporarily closed. The Capital One Lounge, located pre-security near the TSA checkpoints, is open to Capital One Venture X and Spark Travel Elite cardholders and features local food, workspaces, and grab-and-go options.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/IAD",
            "title": "American Express Lounges at Washington Dulles International Airport | Amex US",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://prioritypass.com/en-GB/lounges/united-states-of-america/washington-dulles-international",
            "title": "Washington Dulles International Airport IAD Lounges - IAD Airport Guide and lounges.  | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://americanexpress.com/en-th/travel/lounges/the-platinum-card/IAD",
            "title": "American Express Lounges at Washington Dulles International Airport | Amex TH",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://www.flydulles.com/travel-information/services-amenities/airport-lounges/capital-one-lounge-iad",
            "title": "Capital One Lounge - IAD | flydulles.com",
            "time_published": "2022-03-01T00:00:00Z"
          },
          {
            "url": "https://my.prioritypass.com/zh-CN/lounges/united-states-of-america/washington-dulles-international/iad6-air-france-klm-lounge",
            "title": "Air France - KLM Lounge IAD AIRPORT A 大厅 杜勒斯国际机场 (Washington DC Dulles Intl) | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Washington to San Juan?",
        "answer": "Baggage rules vary by airline and fare class. Basic Economy on this route often restricts carry‑on to a personal item and may charge for checked bags, while standard economy typically includes a carry‑on and one checked bag. Check your specific airline for exact allowances."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Washington to San Juan?",
        "answer": "Flights from Washington to San Juan typically offer Economy, with Premium Economy and flat-bed Business available on select flights, though not all carriers provide these options."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies depend on the airline and fare type; flexible and premium tickets often allow same‑day changes or standby, while Basic Economy typically does not."
      }
    }
  }
}