{
  "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": "The flight from Washington (IAD) to San Juan (SJU) is about 1,570 miles and typically takes 3 hours 57 minutes. The return leg is about the same at 3 hours 56 minutes.",
        "methodology": "Carrier service, flight times and distances for this route come 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). We report the days of the week and the departure times each carrier operates. The typical flight time is the median scheduled block time, given both per carrier and across all carriers on the route; where a schedule does not publish an elapsed time, it is derived from the scheduled departure and arrival times converted to UTC. Outbound and return times are computed by the same method, so the difference between them is directly comparable and reflects prevailing winds rather than any change in derivation. Distance is the great-circle distance between the two specific airports named, so an actual flown track is typically 2-5% longer. Where shown, on-time departure and arrival rates and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, which covers U.S. domestic routes only; where a typical fare is shown, it comes from the U.S. DOT Airline Origin and Destination Survey (DB1B), a quarterly 10% sample of tickets sold.",
        "toolsUsed": [
          "flight_schedule"
        ]
      },
      "q1": {
        "question": "Are there any direct flights from Washington to San Juan?",
        "answer": "Yes, United and Frontier both fly nonstop from Washington Dulles to San Juan. United operates daily with two departures, while Frontier flies four days a week — Tuesday, Thursday, Saturday, and Sunday — with up to four daily departures including a late 9:07 PM red‑eye on Thursdays and Sundays. Together they offer about 17 weekly nonstops.",
        "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. Carrier service, flight times and distances for this route come 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). We report the days of the week and the departure times each carrier operates. The typical flight time is the median scheduled block time, given both per carrier and across all carriers on the route; where a schedule does not publish an elapsed time, it is derived from the scheduled departure and arrival times converted to UTC. Outbound and return times are computed by the same method, so the difference between them is directly comparable and reflects prevailing winds rather than any change in derivation. Distance is the great-circle distance between the two specific airports named, so an actual flown track is typically 2-5% longer. Where shown, on-time departure and arrival rates and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, which covers U.S. domestic routes only; where a typical fare is shown, it comes from the U.S. DOT Airline Origin and Destination Survey (DB1B), a quarterly 10% sample of tickets sold. 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": [
          "route_airlines",
          "flight_schedule",
          "redeye_flights"
        ]
      },
      "q3": {
        "question": "What are the ground transportation options in San Juan?",
        "answer": "From Luis Muñoz Marín International Airport (SJU), taxis, ride-share services like Uber, and rental cars are readily available and are the most common ways to reach San Juan's city center, about 4 to 7 miles away. Public buses (AMA) serve the area with routes connecting to the airport, but they are less frequent and not the preferred option for most travelers with luggage. Taxis offer a fixed-rate, fast, and convenient trip to popular districts like Condado and Old San Juan, making them the most-used choice. Ride-share pickups are designated in specific areas, providing a competitive alternative. Rental cars are ideal for exploring beyond San Juan, though parking in the historic center can be challenging.",
        "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 to San Juan are September, October, and February, with average fares around $350–$360. The most expensive months are July, June, and December, when average fares climb to roughly $429–$438.",
        "methodology": "This seasonal price baseline is a 365-day daily curve of typical round-trip fares for the route, precomputed monthly in-house from Priceline's own air booking-summary archive (the same data that backs the site), not a third party. For each calendar day we take a representative round-trip fare — a blend of the 25th-percentile and average ticket price over the route's bookings — and Gaussian-smooth the series so it reads as a clean seasonal trend rather than day-to-day noise. Thin and international routes are neighbor-filled: the seasonal shape is borrowed from the nearest dense routes (by origin-and-destination great-circle distance) with the price level anchored to the route's own bookings, so a sparse route still shows a plausible curve. It reflects current fares and is refreshed monthly.",
        "toolsUsed": [
          "seasonal_prices"
        ]
      },
      "q5": {
        "question": "How far in advance should I book tickets from Washington to San Juan?",
        "answer": "For flights from Washington (IAD) to San Juan, the optimal booking window is roughly 6 to 9 weeks before departure, when fares average about $311, with the single best day to book being around 55 days out at $310. Booking much earlier (4-5 months ahead) tends to cost more, around $430, while last-minute fares within a week of travel climb back to about $388. For summer and holiday periods, you should book further ahead than the typical window, since demand pushes fares higher and the best prices disappear sooner.",
        "methodology": "This booking-window guidance comes from the same monthly in-house analysis of Priceline's own air booking-summary archive. It expresses the typical round-trip fare as a function of how many days before departure a trip is booked — from about 180 days out down to the day of departure — aggregating the route's bookings by advance-purchase days and Gaussian-smoothing the curve the same way as the seasonal baseline. From that curve we highlight the stretch of lead times with the lowest average fare as the suggested booking window. Thin and international routes are neighbor-filled from the nearest dense routes, with the price level anchored to the route's own bookings. It reflects current fares and is refreshed monthly.",
        "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. This is a late-evening departure on a relatively short route, so it arrives the same night rather than 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 to San Juan?",
        "answer": "United and Frontier operate nonstop from Washington‑Dulles to San Juan, with United flying daily (9 flights a week, median fare around $516) and Frontier offering 8 flights a week on Tuesday, Thursday, Saturday, and Sunday (median fare around $603).",
        "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 JFK, all offering frequent flights and efficient connections to San Juan. Miami and Charlotte are major hubs with short connection times, while Atlanta provides extensive network options. Since this is a domestic route, visa-free transit is irrelevant."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Washington to San Juan?",
        "answer": "On the Washington (IAD) to San Juan (SJU) route, United's on-time departure percentage is 89.9% with a 0.0% cancellation rate, while Frontier's is 56.2% with a 2.0% cancellation rate.",
        "methodology": "Carrier service, flight times and distances for this route come 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). We report the days of the week and the departure times each carrier operates. The typical flight time is the median scheduled block time, given both per carrier and across all carriers on the route; where a schedule does not publish an elapsed time, it is derived from the scheduled departure and arrival times converted to UTC. Outbound and return times are computed by the same method, so the difference between them is directly comparable and reflects prevailing winds rather than any change in derivation. Distance is the great-circle distance between the two specific airports named, so an actual flown track is typically 2-5% longer. Where shown, on-time departure and arrival rates and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, which covers U.S. domestic routes only; where a typical fare is shown, it comes from the U.S. DOT Airline Origin and Destination Survey (DB1B), a quarterly 10% sample of tickets sold.",
        "toolsUsed": [
          "flight_schedule"
        ]
      },
      "q10": {
        "question": "Which months have the best weather for traveling to San Juan?",
        "answer": "Mid-December to April offers sunny skies, low humidity, and fewer crowds outside the holiday peaks."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Washington to San Juan?",
        "answer": "Bring a Real ID or passport, payment for baggage, and any proof of return travel or vaccination that Puerto Rico may require for entry."
      },
      "q12": {
        "question": "Which airport should I use in San Juan?",
        "answer": "Luis Muñoz Marín International Airport is the only commercial airport serving San Juan. It is about 3 miles southeast of downtown and handles all passenger flights to the area."
      },
      "q13": {
        "question": "How do I get to Washington Intl Airport from the city center?",
        "answer": "Reaching Washington Dulles International Airport (IAD) from downtown Washington, D.C., is most popular via the Silver Line Metrorail—take the Silver Line Express bus (every 15–20 minutes, $5 each way) from the terminal to Wiehle-Reston East station, then continue by train into the city. Ride‑share services like Uber and Lyft offer door‑to‑door convenience and are often the fastest option outside peak traffic, while taxis (Washington Flyer) are available 24/7 from the arrivals level. Shared‑van shuttles (SuperShuttle, Supreme Shuttle) provide a budget‑friendly group alternative, and driving yourself means taking the Dulles Toll Road to economy parking ($15/day) with a free 24/7 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) has one on-site hotel, the Residence Inn by Marriott San Juan Isla Verde, located about 5 minutes from the terminals by shuttle. There are no capsule hotels or sleeping pods inside the airport, so overnight passengers must stay landside and bring their own bedding due to bright lights and noise. Several other nearby hotels are also connected by shuttle.",
        "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"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Luis Munoz Marin Intl Airport?",
        "answer": "Luis Muñoz Marín International Airport (SJU) offers currency exchange at several locations across its terminals, including Travelex desks in the baggage claim area. Prayer rooms or chapels are available, with a chapel located in Terminal A. Free Wi‑Fi is provided throughout the airport; connect to the “SJU Free Wi‑Fi” network for complimentary access.",
        "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%20Mu%C3%B1oz%20Mar%C3%ADn%20International%20Airport",
            "title": "Luis Muñoz Marín International Airport",
            "time_published": "2026-04-23T21:46:13Z"
          },
          {
            "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/w/index.php?oldid=1358063127&title=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": "2002-09-10T02:45:15Z"
          }
        ]
      },
      "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 9s by United, Boeing 737 MAX 8s by Southwest, and Airbus A321-100s by JetBlue. Connecting itineraries most often use Boeing 737-800s or 737 MAX 8s through Orlando, Miami, or Charlotte. The exact aircraft can vary by day and airline, and while Wi‑Fi and seatback entertainment are widely available on these modern narrowbody jets, specifics depend on the carrier and individual tail.",
        "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 on select days, and 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": "At Washington Dulles, the most notable lounges are the Capital One Lounge near the TSA PreCheck area (accessible to Capital One Venture X cardholders and day-pass purchasers, with fresh local food and grab-and-go options) and the Virgin Atlantic Clubhouse in Concourse A (open to Upper Class passengers, elite status holders, and Amex Platinum cardholders when flying Virgin, featuring a stylish bar and a la carte dining). The Air France/KLM Lounge in Concourse A is available to business class passengers and SkyTeam Elite Plus members, though access is restricted during peak afternoon hours. The Turkish Airlines Lounge in Concourse B welcomes business class and Miles&Smiles Elite members, while the Etihad Lounge (co-branded as Chase Sapphire Lounge by The Club) in Concourse A serves premium Etihad travelers and Priority Pass members, offering a la carte dishes and shower suites. Note that the Lufthansa Business and Senator Lounges in Concourse B are temporarily closed.",
        "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 depend on the airline and fare. Basic economy typically excludes a checked bag but allows a carry‑on; standard economy usually includes one checked bag and a carry‑on. Premium cabins offer more generous 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 and standard recliner Business class. Flat-bed Business is uncommon, and Premium Economy is not typically available."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies differ by airline and fare; flexible tickets and premium cabins often allow same‑day changes or standby, while Basic Economy typically does not."
      }
    }
  }
}