{
  "response": {
    "Key": "DEN-SJU",
    "orig": {
      "code": "DEN",
      "type": "airport",
      "city": "Denver",
      "fullCity": "Denver, Colorado",
      "airport": "Denver 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 Denver to San Juan?",
        "answer": "The nonstop flight from Denver to San Juan covers about 2,730 miles and typically takes 5 hours and 47 minutes. On the return leg, the flight is longer at 6 hours and 31 minutes, a difference of 44 minutes due to prevailing winds.",
        "methodology": "Flight times and distances come 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). The typical flight time is the median scheduled block time across all carriers on the route, computed the same way in both directions so the difference reflects prevailing winds rather than any change in method. Distance is the great-circle distance between the two airports, so the actual flown track is typically 2-5% longer.",
        "toolsUsed": [
          "flight_schedule"
        ]
      },
      "q1": {
        "question": "Are there any direct flights from Denver to San Juan?",
        "answer": "United Airlines flies nonstop from Denver to San Juan daily, with a single departure around 9:43 AM and a scheduled flight time of about 5 hours 47 minutes. The return leg takes roughly 6 hours 31 minutes due to prevailing winds. With only one carrier and one daily flight, there are no other nonstop options on this route.",
        "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.",
        "toolsUsed": [
          "route_airlines",
          "flight_schedule"
        ]
      },
      "q3": {
        "question": "What are the ground transportation options in San Juan?",
        "answer": "From Luis Muñoz Marín International Airport, the primary ground transportation options to reach San Juan's city center include taxis, ride share services, rental cars, and public buses operated by the Metropolitan Bus Authority, with private shuttles also available. Taxis and ride share are generally the most convenient and are the most commonly used for direct access to hotels and Old San Juan, while rental cars offer flexibility for exploring beyond the city. Public mass transit is limited to the Tren Urbano metro system, which does not directly serve the airport but connects nearby areas via bus transfer; it is cheaper but less convenient with luggage. The fastest option is typically a taxi or ride share, taking about 15-25 minutes to the city center depending on traffic, while the most-used is the taxi due to its regulated availability at the terminal. Car rentals are widely available at the airport but are best for visitors planning to drive around the island rather than just city-center trips.",
        "toolsUsed": [
          "article_lookup"
        ],
        "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": "2026-09-14T07:54:59Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Rail_transport_in_Puerto_Rico",
            "title": "Rail transport in Puerto Rico",
            "time_published": "2026-07-26T15:19:48Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transportation_in_Puerto_Rico",
            "title": "Transportation in Puerto Rico",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-04-24T20:08:05Z"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Denver to San Juan?",
        "answer": "Average fares from Denver to San Juan bottom out around $329 in late January, which is the single cheapest stretch to fly. The cheapest months overall are January at $348, September at $354, and February at $362, while the most expensive period is late December at $475, with December, June, and July averaging $446, $431, and $424 respectively.",
        "methodology": "Seasonal fares come from Priceline's own air booking-summary archive, analysed in-house and refreshed monthly. For each day of the year we take a representative round-trip fare, a blend of the 25th-percentile and average ticket price over the route's bookings, and smooth the series into a seasonal curve; the half-month low and high and the monthly figures quoted here are averages of that curve. Thin and international routes borrow their seasonal shape from the nearest busy routes, with the price level anchored to the route's own bookings.",
        "toolsUsed": [
          "seasonal_prices"
        ]
      },
      "q5": {
        "question": "How far in advance should I book tickets from Denver to San Juan?",
        "answer": "For Denver to San Juan, the optimal booking window is roughly 3 to 6 weeks before departure, with average fares around $285; the single cheapest day to book is about 30 days out at $279. Booking too far ahead is costly — 180 days out averages $467 — and last-minute bookings (under 2 weeks) climb back above $300. Summer and holiday periods typically require booking earlier, as peak demand pushes the cheapest window out to 6–8 weeks ahead.",
        "methodology": "Booking-window guidance comes from the same monthly in-house analysis of Priceline's own air booking-summary archive. We aggregate the route's bookings by how many days before departure they were made, from about 180 days out to the day of travel, smooth the curve, and highlight the stretch of lead times with the lowest average fare. Thin and international routes borrow the curve shape from the nearest busy routes, anchored to the route's own price level. It reflects current fares and is refreshed monthly.",
        "toolsUsed": [
          "booking_timing"
        ]
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Denver to San Juan?",
        "answer": "No nonstop red-eye flights operate from Denver to San Juan, but connecting itineraries whose long leg is an overnight flight are available. Frontier runs a red-eye from Denver to Orlando departing at 11:59 PM and arriving at 5:38 AM, with a 2h 27m layover before continuing to San Juan. American also offers an overnight leg from Denver to Miami departing at 11:55 PM and arriving at 5:49 AM, followed by a 1h 11m connection to San Juan.",
        "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 Denver to San Juan?",
        "answer": "United Airlines flies nonstop from Denver to San Juan, with daily service and a median fare around $826. Other carriers also serve the route, typically via connecting hubs.",
        "methodology": "Airlines and weekly frequencies come 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 typical fare is shown for a carrier, it is the median of 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 Denver and San Juan?",
        "answer": "Common layovers include Miami, Charlotte, Atlanta and Dallas. They provide broad connections, efficient transfers and, as a domestic route, no visa concerns."
      },
      "q9": {
        "question": "How reliable are on‑time arrivals on this route from Denver to San Juan?",
        "answer": "United Airlines operates the Denver to San Juan route with a 68.1% on-time arrival rate and a 0.0% cancellation rate. United is the most reliable carrier on this route, with arrivals landing within 15 minutes of schedule 68.1% of the time.",
        "methodology": "On-time arrival 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; a flight counts as on time when it arrives within 15 minutes of schedule. Carriers are ranked by arrival on-time rate on this route, and the carrier list itself comes 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).",
        "toolsUsed": [
          "flight_schedule"
        ]
      },
      "q10": {
        "question": "Which months have the best weather for traveling to San Juan?",
        "answer": "December to April offers warm, dry weather with fewer crowds outside the holiday peaks."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Denver to San Juan?",
        "answer": "Since this is a domestic U.S. flight, bring a Real ID-compliant driver's license or passport, a payment method for baggage, and any required health documents."
      },
      "q12": {
        "question": "Which airport should I use in San Juan?",
        "answer": "Luis Muñoz Marín International Airport is the only airport serving San Juan. It is located about 5 km southeast of downtown and handles all commercial flights to the city."
      },
      "q13": {
        "question": "How do I get to Denver Intl Airport from the city center?",
        "answer": "The fastest and most popular way to reach Denver International Airport from downtown is the RTD A Line train, which runs every 15 minutes, 24/7, and takes about 37 minutes to Union Station. Ride-share services like Uber and Lyft, as well as taxis, take 25-35 minutes but cost significantly more than the train; shared vans take 45-60 minutes and are best for hotel drop-offs. Driving yourself is possible with on-site parking, and several hotels near the airport offer shuttle service.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.flydenver.com/parking-and-transportation/to-and-from/",
            "title": "Getting To and From | Denver International Airport",
            "favicon": "https://www.flydenver.com/apple-touch-icon.png",
            "time_published": "2026-05-15T18:36:33Z"
          },
          {
            "url": "https://flydenver.com/parking-and-transportation/to-and-from/public-bus-or-train-rtd",
            "title": "Public Bus or Train | Denver International Airport",
            "favicon": "https://flydenver.com/apple-touch-icon.png",
            "time_published": "2026-05-15T18:47:06Z"
          },
          {
            "url": "https://www.flydenver.com/parking-and-transportation/to-and-from/airport-transit-center/",
            "title": "Airport Transit Center | Denver International Airport",
            "favicon": "https://www.flydenver.com/apple-touch-icon.png",
            "time_published": "2026-05-15T18:45:07Z"
          },
          {
            "url": "https://faa.gov/air_traffic/publications/domesticnotices/dom25010_af.html",
            "title": "DENVER INTERNATIONAL AIRPORT (KDEN) standard taxi routes",
            "favicon": "https://faa.gov/air_traffic/publications/domesticnotices/assets/images/favicon.ico"
          },
          {
            "url": "https://www.fly.faa.gov/fly/flyfaa/flyfaaindex?ARPT=DEN&p=1",
            "title": "Denver International Airport"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at San Juan airport?",
        "answer": "San Juan Airport has a hotel directly on-site: the San Juan Airport Hotel, located in Terminal D on the landside with direct terminal access. There are no sleep cabins or pods, and no day rooms are offered. A few other hotels are within a 10-minute drive, but they do not provide airport shuttles.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "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://hilton.com/en/locations/puerto-rico/san-juan/sju-luis-munoz-marin-international-airport",
            "title": "Hotels near Luis Munoz Marin International Airport, San Juan, Puerto Rico - Find Hotels - Hilton",
            "favicon": "https://www.hilton.com/modules/assets/img/brand/WW/favicon_WW.svg"
          },
          {
            "url": "https://sleepinginairports.net/reviews/san-juan-airport-reviews.htm",
            "title": "San Juan Luis Muñoz Marín   Airport Reviews (SJU) – Sleeping in Airports",
            "favicon": "https://www.sleepinginairports.net/wp-content/uploads/2018/09/cropped-sia-logo-180x180.png"
          },
          {
            "url": "https://hilton.com/th/locations/puerto-rico/san-juan/sju-luis-munoz-marin-international-airport/casino/embassy-suites",
            "title": "โรงแรม Embassy Suites Casino ใกล้สนามบินนานาชาติ Luis Munoz Marin ซานฮวน เปอร์โตริโก - ค้นหาโรงแรม - Hilton",
            "favicon": "https://www.hilton.com/modules/assets/img/brand/ES/favicon_ES.svg"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Luis Munoz Marin Intl Airport?",
        "answer": "Luis Muñoz Marín International Airport does not have currency exchange offices, prayer rooms, or chapels. Free Wi‑Fi is available throughout the terminals. The airport has one main terminal building with four concourses and a separate terminal with one concourse, all connected.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/San_Juan_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"
          },
          {
            "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": "2026-09-14T07:54:59Z"
          },
          {
            "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/Transportation_in_Puerto_Rico",
            "title": "Transportation in Puerto Rico",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-04-24T20:08:05Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Port%20of%20San%20Juan",
            "title": "Port of San Juan",
            "time_published": "2025-11-09T08:46:28Z"
          }
        ]
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Denver and San Juan airports?",
        "answer": "Denver International Airport offers accessible parking in all airport-owned facilities, electric carts to transport elderly or disabled passengers to airline gates, and a Hidden Disabilities Sunflower Lanyard Program for travelers with hidden disabilities, with interpreter services available at information booths and in Customs. For ground transportation, Metro Taxi recommends 48 hours advance notice for disabled passenger pickup. At Luis Muñoz Marín International Airport in San Juan, the terminal complex is fully connected with modern concourses. Travelers should arrange wheelchair or mobility assistance through their airline at least 48 hours before the flight, as this is the standard practice for both airports.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://flydenver.com/at-the-airport/services-and-amenities/accessibility-services",
            "title": "Accessibility and Mobility | Denver International Airport",
            "favicon": "https://flydenver.com/apple-touch-icon.png",
            "time_published": "2026-08-10T20:24:04Z"
          },
          {
            "url": "https://www.flydenver.com/event/61719/",
            "title": "Accessibility Resource Fair | Denver International Airport",
            "favicon": "https://www.flydenver.com/apple-touch-icon.png",
            "time_published": "2026-07-22T17:07:58Z"
          },
          {
            "url": "https://flydenver.com/about-den/facilities",
            "title": "Airport Facilities and Grounds | Denver International Airport",
            "favicon": "https://flydenver.com/apple-touch-icon.png",
            "time_published": "2026-08-03T22:42:42Z"
          },
          {
            "url": "https://airporttech.tc.faa.gov/Products/Databases/Denver-Instrumentation/Browse-Database/Weather",
            "title": "AirportTech > Products > Databases  > Denver Instrumentation > Browse Database > Weather",
            "favicon": "https://airporttech.tc.faa.gov/Portals/0/favicon-FAA.ico?ver=L21jzf-llJYYjFtxLcsyqg%3d%3d"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Denver_International_Airport",
            "title": "Denver International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-09-11T12:43:01Z"
          },
          {
            "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": "2026-09-14T07:54:59Z"
          },
          {
            "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/San_Juan_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"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transportation_in_Puerto_Rico",
            "title": "Transportation in Puerto Rico",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-04-24T20:08:05Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Denver to San Juan?",
        "answer": "United operates the Denver to San Juan route using the Boeing 737 family of aircraft. No other carriers are listed for this route.",
        "methodology": "Aircraft types come 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). For U.S. routes the type is grounded in the tail number that actually operated the flight; elsewhere it comes from the airline's filed equipment code. Where the source does not commit to a specific variant we name the aircraft family (for example Airbus A320 family) rather than guess, and where no reliable type is on file the aircraft is omitted rather than estimated. Types describe typical scheduled equipment and can vary with seasonal or day-of-week assignments and last-minute swaps.",
        "toolsUsed": [
          "flight_schedule"
        ]
      },
      "q18": {
        "question": "Which airline alliances serve flights from Denver to San Juan?",
        "answer": "The only airline with nonstop service from Denver to San Juan is United Airlines, which is a member of Star Alliance. Other alliances may serve the route via connections, but United is the sole carrier operating it nonstop.",
        "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 Denver?",
        "answer": "Denver International Airport has several lounge options when departing, including American Airlines Admirals Club near Gate C-32, the American Express Centurion Lounge near Gate C-46, and the Capital One Lounge near Gate A-34. Delta Sky Club is located at the north end of Concourse A, while United offers three clubs at the B Gates and one near Gate A-25, though the United Club at B Gates West is temporarily closed. There is also the United Club Fly near Gate B-60 and a USO Denver lounge on Level 4 above the Concourse A mezzanine.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://flydenver.com/at-the-airport/lounge-areas",
            "title": "Denver Airport Lounges | Denver International Airport",
            "favicon": "https://flydenver.com/apple-touch-icon.png",
            "time_published": "2026-08-03T22:37:03Z"
          },
          {
            "url": "https://www.flydenver.com",
            "title": "Denver International Airport | DEN",
            "favicon": "https://www.flydenver.com/apple-touch-icon.png",
            "time_published": "2026-09-08T14:54:34Z"
          },
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/DEN",
            "title": "American Express Lounges at Denver International Airport | Amex US",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "https://my.prioritypass.com/en-GB/lounges/united-states-of-america/denver-international",
            "title": "Denver International Airport DEN Lounges - DEN Airport Guide and lounges. | Priority Pass",
            "favicon": "https://my.prioritypass.com/icon.png?a4ff481221414a5c"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Denver to San Juan?",
        "answer": "Baggage rules vary by airline and fare type. Basic Economy often excludes checked bags, while standard economy typically includes one checked bag and a carry-on. Premium cabins offer more generous allowances."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Denver to San Juan?",
        "answer": "Typical cabin options from Denver to San Juan include Economy and, on many flights, a domestic first class with recliner seats rather than flat‑bed Business; Premium Economy is uncommon on this route."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies differ by airline and fare; flexible and premium tickets usually allow same‑day changes or standby, while Basic Economy generally does not."
      }
    }
  }
}