{"response": {"Key": "CHI-SJU", "orig": {"code": "CHI", "type": "airport", "city": "Chicago", "fullCity": "Chicago, Illinois", "airport": "Dupage County"}, "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 Chicago to San Juan?", "answer": "The flight from Chicago to San Juan is about 2,060 miles, with a typical nonstop block time around 4 hours 50 minutes. The return leg averages 5 hours 19 minutes, about 29 minutes longer due to prevailing headwinds.", "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 Chicago to San Juan?", "answer": "Yes, there are nonstop flights from Chicago to San Juan. American and United both fly daily from O'Hare, while Southwest operates from Midway on Saturdays and Sundays only. Altogether there are up to 31 weekly nonstops, with flight times around 4 hours 50 minutes.", "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": "At San Juan's Luis Muñoz Marín International Airport (SJU), taxis, ride‑share services, rental cars, and public buses are all available. Taxis are the fastest and most popular choice, with fixed rates to major zones like Old San Juan and Condado. The public bus (AMA) is the cheapest at $0.75 but requires exact change and takes longer. Ride‑sharing apps and rental cars offer flexibility, though traffic can slow you down during peak hours.", "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 Chicago to San Juan?", "answer": "The cheapest months to fly from Chicago to San Juan are August, September, and May, with average fares around $374–$410. The most expensive period is December through March, when average prices climb to $574–$645.", "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 Chicago to San Juan?", "answer": "For flights from Chicago to San Juan, the best fares are usually found when booking 8 to 11 weeks ahead, with an average price around $455. Last-minute bookings can cost significantly more, and prices tend to rise again if you book more than about 15 weeks out.", "methodology": "This booking-window guidance is built from the same real flight prices found by Priceline users searching this route, re-grouped by how many days before departure each price was seen (from the departure day out to about 180 days ahead) across the route's price history. At each booking lead time we report the 25th-percentile price — the cheaper end of what travelers were quoted, rather than the rock-bottom minimum (which can be a fluke) or the average (which is pulled up by expensive last-minute fares). The buy-or-wait advice then applies a risk premium that grows as departure approaches, since seat availability shrinks and prices become less predictable; using that adjusted curve we flag windows where waiting is likely to save a meaningful amount (at least $20 or 5%) versus windows where booking now is the better call. Isolated single-day recommendations are filtered out, so the advice only reflects a window that holds for several days in a row.", "toolsUsed": ["booking_timing"]}, "q6": {"question": "Are overnight (red‑eye) flights available from Chicago to San Juan?", "answer": "No overnight / red‑eye flights are scheduled from Chicago to San Juan — neither nonstop red‑eyes nor connecting itineraries whose long leg is a red‑eye were found.", "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 Chicago to San Juan?", "answer": "American Airlines, United Airlines, and Southwest Airlines fly nonstop from Chicago to San Juan. American and United each operate 14 weekly flights from O'Hare, with median fares around $589 and $637 respectively. Southwest offers 3 weekly flights from Midway on Saturdays and Sundays, with a median fare near $461.", "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 Chicago and San Juan?", "answer": "Common layover cities between Chicago and San Juan include Charlotte, Miami, Atlanta, and New York JFK. These hubs offer broad connections, efficient transfers, and are well‑positioned along the route, helping keep total travel time competitive. As a domestic itinerary, visa‑free transit is irrelevant."}, "q10": {"question": "Which months have the best weather for traveling to San Juan?", "answer": "Mid-December through April offers warm, sunny days and lower humidity, with fewer crowds outside the holiday peaks."}, "q11": {"question": "What documents should I bring with me to the airport when flying from Chicago to San Juan?", "answer": "Since Puerto Rico is a U.S. territory, travel from Chicago is domestic. Bring a Real ID or passport, ensure the name matches your ticket, and carry a payment method for baggage and any required health documents."}, "q12": {"question": "Which airport should I use in San Juan?", "answer": "San Juan has one airport, Luis Muñoz Marín International Airport, which serves all commercial flights to the city."}, "q13": {"question": "How do I get to Dupage County from the city center?", "answer": "To reach Chicago O'Hare from downtown, the CTA Blue Line 'L' train is the fastest and most popular option, running directly into the terminals 24/7 for a low fare. Taxis and ride‑shares offer door‑to‑door convenience at a higher cost, especially during peak traffic. Shuttle buses and Metra commuter rail provide alternatives from various suburbs and the city, while driving gives access to hourly, daily, and economy parking garages at the airport.", "toolsUsed": [], "references": [{"url": "https://flychicago.com/ohare/tofrom/pages/default.aspx", "title": "Getting To and From O'Hare International Airport | Chicago O’Hare International Airport (ORD)", "favicon": "https://flychicago.com/_catalogs/masterpage/favicon.ico"}, {"url": "https://www.flychicago.com/ohare/map", "title": "Map | Chicago O’Hare International Airport (ORD)", "time_published": "2026-05-27T00:00:00Z"}, {"url": "https://en.wikipedia.org/wiki/Transportation_in_Chicago", "title": "Transportation in Chicago", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2026-05-15T02:56:07Z"}, {"url": "https://en.wikipedia.org/wiki/Transportation%20in%20Chicago", "title": "Transportation in Chicago", "time_published": "2026-04-13T06:59:09Z"}, {"url": "https://faa.gov/regulations_policies/orders_notices/index.cfm/go/document.information/documentID/6111", "title": "Order  3330.39 - Chicago/o'hare Airport Traffic Control Tower (ATCT) Staffing PChicago/o'hare Airport Traffic Control Tower (ATCT) Staffing Plan (Cancelled)", "time_published": "2026-04-10T00:00:00Z"}]}, "q14": {"question": "Are there hotels or sleeping facilities at San Juan airport?", "answer": "San Juan Airport (SJU) has an on-site hotel, the Residence Inn San Juan Isla Verde, located just five minutes from the terminals with no shuttle required. There are no capsule hotels or sleeping pods inside the airport, but the Residence Inn offers suites with kitchens and complimentary breakfast, and other nearby hotels are connected by a short shuttle. For those staying overnight in the terminal, landside areas are the only option, and travelers often note bright lights and cold temperatures as challenges.", "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 free Wi‑Fi throughout the terminals, so you can stay connected after arriving from Chicago. Currency exchange offices are available in both Terminals A and B, located before and after security, making it easy to convert your money upon landing. Prayer rooms or chapels are not explicitly mentioned in the available information, so I cannot confirm their presence at the airport.", "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 Chicago to San Juan?", "answer": "Nonstop flights from Chicago to San Juan typically use an Airbus A321-200 Neo on United, a Boeing 737-800 on American, and Frontier’s aircraft type is unspecified in the schedule. The exact aircraft can vary by day and airline, but these are the common types seen on this route. Wi‑Fi and seatback entertainment are widely available on many of these flights, though specifics depend on the carrier and exact aircraft assigned.", "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 Chicago?", "answer": "At Chicago O'Hare (ORD), departing travelers have several lounge options. United offers multiple United Clubs in Terminals 1 and 2 (accessible with United Club membership, elite status, or a day pass), plus a Polaris Lounge in Terminal 1 exclusively for international first and business class passengers. American Airlines has Admirals Clubs in Terminal 3 (accessible via membership, elite status, or day pass) and a Flagship Lounge for premium international travelers. Delta's Sky Club is in Terminal 5, open to members, elite status holders, and eligible same-day ticketed passengers. Terminal 5 also houses independent lounges including the Air France Lounge, Swissport Lounge (accessible via Priority Pass), and Wingtips Lounge, all available to various alliance and program members.", "toolsUsed": [], "references": [{"url": "https://www.flychicago.com/ohare/ServicesAmenities/services/Pages/lounges.aspx", "title": "Airline Lounges | Chicago O’Hare International Airport (ORD)", "time_published": "2026-05-29T00:00:00Z"}, {"url": "https://www.delta.com/us/en/airports/united-states/chicago-sky-club-airport-map", "title": "Chicago O'Hare (ORD) Airport Map & Lounges | Delta Air Lines", "time_published": "2022-11-18T00:00:00Z"}, {"url": "https://my.prioritypass.com/en-GB/lounges/united-states-of-america/ohare-international/ord10-swissport-lounge", "title": "Swissport Lounge ORD AIRPORT Terminal 5 O'Hare International | Priority Pass", "time_published": "2024-11-05T00:00:00Z"}, {"url": "https://americanexpress.com/en-ca/travel/lounges/the-platinum-card/ORD", "title": "American Express Lounges at O'Hare International Airport | Amex CA", "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"}, {"url": "http://www.americanexpress.com/en-us/travel/lounges/the-platinum-card/ORD/Swissport-Lounge-Terminal-5-Concourse-M-5mTKilCqDl/", "title": "Swissport Lounge at O'Hare International Airport | Amex US", "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"}]}, "q21": {"question": "What is the baggage allowance on this route from Chicago to San Juan?", "answer": "Baggage allowance on flights from Chicago to San Juan depends on the airline and fare type. Basic economy tickets often restrict checked baggage, 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 Chicago to San Juan?", "answer": "Flights from Chicago to San Juan usually offer Economy and often a domestic first class with larger recliners; flat‑bed Business and Premium Economy are rarely found on this route."}, "q23": {"question": "Are same‑day changes or standby possible on this route?", "answer": "Policies vary by airline and fare type; flexible and premium cabins generally allow same‑day changes or standby, while Basic Economy typically does not."}}}}