{
  "response": {
    "Key": "IAD-SJU",
    "orig": {
      "code": "IAD",
      "type": "airport",
      "city": "Washington D.C.",
      "fullCity": "Washington D.C., 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 D.C. to San Juan?",
        "answer": "A nonstop flight from Washington D.C. (IAD) to San Juan (SJU) typically takes about 4 hours. With a layover, common connection cities include Miami or Charlotte, and total travel time usually ranges from 6 to 8 hours. The return flight from San Juan to Washington D.C. is similar in duration, often around 4 hours nonstop. United Airlines operates direct flights that are among the fastest options."
      },
      "q1": {
        "question": "Are there any direct flights from Washington D.C. to San Juan?",
        "answer": "Yes, there are nonstop flights from Washington Dulles (IAD) to San Juan (SJU) on two airlines: United operates two daily flights (at 08:40 and 17:28), while Frontier flies four days a week — Tuesday, Thursday, Saturday, and Sunday — with departures scattered between late morning and evening.",
        "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. Carrier service and weekly frequencies are summarized from our flight-schedule database, which draws on published airline timetables, U.S. government schedule data, and observed operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). Where available, on-time and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, and typical fares from the U.S. DOT Airline Origin and Destination Survey (DB1B), a quarterly 10% sample of tickets sold.",
        "toolsUsed": [
          "route_airlines",
          "flight_schedule"
        ]
      },
      "q3": {
        "question": "What are the ground transportation options in San Juan?",
        "answer": "From Luis Muñoz Marín International Airport (SJU) to central San Juan, taxis and ride-share services like Uber are the most convenient and commonly used options, taking about 10 to 15 minutes to reach areas like Old San Juan or Condado. Taxis have fixed rates to designated zones, while ride-share pickups are in designated areas outside terminals. Public buses (AMA) are available via routes T5 and D53 but are infrequent, slow, and not recommended for visitors with luggage. There is no direct rail link from the airport. Car rentals are widely available at the airport and are useful for exploring beyond San Juan, though parking in Old San Juan is difficult. Most travelers rely on taxis or ride-shares for their speed and ease."
      },
      "q4": {
        "question": "When is the cheapest time to fly from Washington D.C. to San Juan?",
        "answer": "The cheapest months to fly from Washington D.C. (IAD) to San Juan (SJU) are August (average $369), September ($391), and May ($397), while the most expensive are December ($580), January ($480), and February ($475).",
        "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 D.C. to San Juan?",
        "answer": "For flights from Washington D.C. (IAD) to San Juan (SJU), the optimal booking window is about 9 to 12 weeks before departure, with average fares around $453. Booking around 80 days out can yield the lowest price near $450, while last-minute tickets (0 days) spike to $589. During summer or holiday periods, demand may push prices higher, so leaning toward the earlier side of that window is wise.",
        "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 D.C. to San Juan?",
        "answer": "Yes, overnight red-eye flights are available nonstop from Washington Dulles (IAD) to San Juan (SJU). Frontier operates red-eyes on Thursdays and Sundays departing around 9:07 PM and arriving the next morning.",
        "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 D.C. to San Juan?",
        "answer": "United Airlines and Frontier operate nonstop flights from Washington Dulles (IAD) to San Juan (SJU). United flies daily with a typical median fare around $545, while Frontier runs several flights per week on Tuesday, Thursday, Saturday, and Sunday. No specific median fare is available for Frontier in the schedule data, though it may offer lower-cost options.",
        "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.",
        "relevant": true,
        "toolsUsed": [
          "route_airlines"
        ]
      },
      "q8": {
        "question": "If I need a connection, what are common layover cities between Washington D.C. and San Juan?",
        "answer": "Common layover cities include Miami, Charlotte, Atlanta, and Orlando. These hubs offer frequent connections, efficient transfers, and competitive total travel times, often under six to eight hours. As a domestic route, no visa or transit documentation is required."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Washington D.C. to San Juan?",
        "answer": "On-time performance is generally reliable, though afternoon thunderstorms at IAD can cause delays. Early morning departures on United Airlines typically have the best on-time odds."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to San Juan?",
        "answer": "Mid-December to April offers comfortable temperatures, lower humidity, and fewer tourists outside the holiday peaks."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Washington D.C. to San Juan?",
        "answer": "Puerto Rico is a U.S. territory, so no passport is needed for U.S. citizens. Bring a Real ID-compliant driver's license or other acceptable ID, a payment method for bags, and any required health documents."
      },
      "q12": {
        "question": "Which airport should I use in San Juan?",
        "answer": "Luis Muñoz Marín International Airport (SJU) is the primary airport serving San Juan, located about 3 miles southeast of downtown, near popular areas like Condado and Old San Juan. It handles all major U.S. carriers and is the main hub for flights to and from the island. There are no other commercial airports in San Juan; the only other option is Isla Grande Airport, which serves limited regional and private flights."
      },
      "q13": {
        "question": "How do I get to Washington Intl Airport from the city center?",
        "answer": "From downtown Washington D.C. to Dulles (IAD), the Silver Line Express bus from Wiehle‑Reston East Metro station is a popular mid‑cost option. The Metrorail Silver Line now runs directly to the airport, offering a cheaper but longer trip. Rideshares and taxis are faster, especially in low traffic. Driving and parking are available but cost the most."
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at San Juan airport?",
        "answer": "San Juan Airport does not have on-site hotels, capsule hotels, or sleeping pods. The closest hotel is the San Juan Airport Hotel, located just outside Terminal D, a short walk from the terminal. Several other nearby hotels offer free shuttle service."
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Luis Munoz Marin Intl Airport?",
        "answer": "Currency exchange is available at the airport. There is no dedicated prayer room, but a chapel is located in Terminal A. Free Wi‑Fi is provided throughout the terminals."
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Washington D.C. and San Juan airports?",
        "answer": "Washington Dulles (IAD) offers wheelchair assistance, accessible restrooms, and TTY phones; request help through your airline 48 hours before travel. There is a children’s play area in Concourse B. San Juan Luis Muñoz Marín (SJU) provides wheelchair services, accessible facilities, and a small play area near the food court in Terminal A; arrange assistance at least 48 hours in advance."
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Washington D.C. to San Juan?",
        "answer": "On nonstop flights from Washington Dulles (IAD) to San Juan (SJU), the most common aircraft are the Boeing 737 MAX 8 and 737-800, along with the 737 MAX 9 and Airbus A321-100; the exact type varies by day and airline (United, Southwest, and JetBlue are shown in the schedule data). On connecting itineraries, the same 737 MAX 8 and 737-800 dominate the longer legs, often via Orlando or Fort Lauderdale, with Airbus A320-family aircraft also appearing. Wi-Fi and seatback entertainment are widely available on these modern narrowbody jets, though specific offerings differ by carrier.",
        "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"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Washington D.C.?",
        "answer": "At Washington Dulles, the United Club and United Polaris Lounge in Concourse C serve business‑class and elite travellers, with the Polaris Lounge offering a la carte dining and sleeping pods. The Delta Sky Club near Gate B43 admits Delta One passengers and SkyTeam Elite Plus members. The Air France‑KLM Lounge in Concourse A accepts business‑class flyers and Priority Pass holders, featuring showers and a buffet. The Lufthansa Senator and Business Lounges in Concourse B welcome Star Alliance premium travellers and some credit‑card holders. Turkish Airlines Lounge in Concourse B also grants access to business‑class passengers and Priority Pass members, with hot meals and showers."
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Washington D.C. to San Juan?",
        "answer": "Baggage policies depend on the airline and fare type. For U.S. carriers on this route, basic economy usually excludes a checked bag, while standard economy often includes one checked bag and a carry‑on. Puerto Rico is a U.S. territory, so domestic baggage rules generally apply."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Washington D.C. to San Juan?",
        "answer": "Flights from Washington D.C. to San Juan typically offer Economy and recliner Business class; Premium Economy is uncommon and flat-bed Business is rarely available on this domestic route."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies vary by airline and fare; flexible and premium cabins typically allow same‑day changes or standby, while Basic Economy rarely does."
      },
      "q24": {
        "question": "What are the cheapest days and times to fly from Washington D.C. to San Juan?",
        "answer": "The cheapest day to fly from Washington D.C. (IAD) to San Juan (SJU) is Monday with an average fare of $546, while Friday is the most expensive at $587. The cheapest time of day to depart is early morning, with fares as low as $338, compared to late night departures which start at $367.",
        "methodology": "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.",
        "relevant": true,
        "toolsUsed": [
          "departure_timing"
        ]
      },
      "q25": {
        "question": "What is a good price for a flight from Washington D.C. to San Juan?",
        "answer": "A good price for a flight from Washington D.C. to San Juan is anything under $390, which is considered a great deal, while the typical fare hovers around $561.",
        "methodology": "The typical price, the lowest fare, a 'great deal' threshold, and how fares are spread across price bands are summarized from a large sample of the real fares Priceline users found on this route in the last 72 hours, with a small fraction of extreme outlier fares excluded from the range.",
        "relevant": true,
        "toolsUsed": [
          "price_context"
        ]
      }
    }
  }
}