{
  "response": {
    "Key": "LIS-ORD",
    "orig": {
      "code": "LIS",
      "type": "airport",
      "city": "Lisbon",
      "fullCity": "Lisbon, Portugal",
      "airport": "Humberto Delgado Airport"
    },
    "dest": {
      "code": "ORD",
      "type": "airport",
      "city": "Chicago",
      "fullCity": "Chicago, Illinois",
      "airport": "O'Hare Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Lisbon to Chicago?",
        "answer": "The flight from Lisbon to Chicago is about 3,990 miles and typically takes 9 hours 20 minutes nonstop on TAP Air Portugal. The return leg is shorter at 8 hours 10 minutes, a difference of over an hour 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"
        ]
      },
      "q3": {
        "question": "What are the ground transportation options in Chicago?",
        "answer": "Chicago O'Hare offers several ground transportation options to the city center. The CTA Blue Line 'L' train provides 24-hour service directly from the airport to downtown in about 40 minutes and is the most economical and most-used public transit option. Metra commuter rail via the O'Hare Transfer Station and Pace suburban buses are also available, though they are less direct for reaching the Loop. Taxis, rideshares such as Uber and Lyft, and rental cars are readily accessible, offering more convenience but at higher cost. The Blue Line is the fastest and most-used option for most travelers heading downtown.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://flychicago.com/ohare/tofrom/publictransit/Pages/default.aspx",
            "title": "Public Transit | Chicago O’Hare International Airport (ORD)",
            "favicon": "https://flychicago.com/_catalogs/masterpage/favicon.ico"
          },
          {
            "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://en.wikipedia.org/wiki/Transportation_in_Chicago",
            "title": "Transportation in Chicago",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-09-01T15:50:47Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/O%27Hare_International_Airport",
            "title": "O'Hare International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-09-11T09:41:03Z"
          },
          {
            "url": "https://www.flychicago.com/ohare/home/pages/default.aspx",
            "title": "O’Hare International Airport",
            "favicon": "https://www.flychicago.com/_catalogs/masterpage/favicon.ico"
          }
        ]
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Lisbon to Chicago?",
        "answer": "No overnight red‑eye flights operate from Lisbon to Chicago — neither nonstop nor connecting itineraries with a red‑eye long leg are available on this route.",
        "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 Lisbon to Chicago?",
        "answer": "TAP Air Portugal is the only airline flying nonstop from Lisbon to Chicago, with 11 weekly flights on Wednesdays through Sundays, typically departing between late morning and early afternoon. The median fare for these nonstop flights is around $1,674. Other airlines may offer connecting itineraries, but TAP is the sole carrier with direct service on this route.",
        "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 Lisbon and Chicago?",
        "answer": "Common layover cities include Dublin, Madrid, London, and Amsterdam. Dublin offers US preclearance, saving time on arrival. Madrid provides efficient connections on Iberia. London and Amsterdam are major hubs with broad transatlantic networks and smooth transfer processes. For Lisbon to Chicago, these hubs keep total travel time competitive."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Chicago?",
        "answer": "May to early June and September to October offer pleasant temperatures and fewer tourists than summer."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Lisbon to Chicago?",
        "answer": "Bring a passport valid for your stay, a valid U.S. visa or ESTA authorization, and a payment method for any baggage fees. Check if proof of onward travel is required by your airline."
      },
      "q12": {
        "question": "Which airport should I use in Chicago?",
        "answer": "O'Hare is the primary international gateway and major hub for United and American Airlines, located about 17 miles northwest of downtown. Midway is closer to the city centre and serves mostly domestic flights, dominated by Southwest. For international arrivals, O'Hare is the standard choice."
      },
      "q13": {
        "question": "How do I get to Humberto Delgado Airport from the city center?",
        "answer": "From central Lisbon, the fastest and most popular way to reach Humberto Delgado Airport is the metro, which takes about 20 minutes from downtown via the Red Line to Aeroporto station at Terminal 1; you can use a Viva Viagem card or contactless payment. City taxis are available 24/7 outside arrivals and departures and reach the city center in roughly 15 minutes, costing more than public transit. Carris city buses also serve the airport arrivals area, and driving is easy via major highways with several covered and open parking options, plus valet service.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/Lisbon_Airport",
            "title": "Lisbon Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-09-14T10:27:02Z"
          },
          {
            "url": "https://lisbon-lis.airports-guides.com",
            "title": "Lisbon Portela Airport (LIS) Information: LIS Airport in Lisbon Area, Portugal",
            "favicon": "http://www.airports-guides.com/favicon.ico"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transport_in_Portugal",
            "title": "Transport in Portugal",
            "time_published": "2026-05-04T23:32:13Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Lisbon_Metro_Red_Line",
            "title": "Lisbon Metro Red Line",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-05-25T05:54:05Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Trams_in_Lisbon",
            "title": "Trams in Lisbon",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-08-15T23:13:49Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Chicago airport?",
        "answer": "Chicago O'Hare has a directly connected on-site hotel: the Hilton Chicago O'Hare Airport Hotel, located across from Terminals 1, 2, and 3 and reachable via underground pedestrian walkways, with Terminal 5 accessible by the Airport Transit System. There is no transit hotel inside the secure area, so overnight layover travelers must exit security and re-clear screening the next day. Many nearby hotels also offer free airport shuttles.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://sleepinginairports.net/guides/chicago-ohare-airport-guide.htm",
            "title": "Chicago O'Hare Airport Guide (ORD) - 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": "2018-08-08T19:18:20Z"
          },
          {
            "url": "https://flychicago.com/ohare/ServicesAmenities/amenities/Pages/hotel.aspx",
            "title": "On-Site Hotel | Chicago O’Hare International Airport (ORD)",
            "favicon": "https://flychicago.com/_catalogs/masterpage/favicon.ico"
          },
          {
            "url": "https://ihg.com/chicago-illinois/hotels-near-ohare-international",
            "title": "60 Hotels Near ORD O'Hare International (ORD) Airport | IHG",
            "favicon": "https://digital.ihg.com/is/image/ihg/app-web-chiclet-ihg?fmt=png-alpha"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at O'Hare Intl Airport?",
        "answer": "Chicago O'Hare International Airport (ORD) offers currency exchange through ATMs and banks located throughout the terminals, and free Wi-Fi is available airport-wide with charging stations in every terminal. Prayer rooms or chapels are not mentioned in the available services and amenities information. Currency exchange and banking services are spread across the terminals rather than concentrated in one location, while Wi-Fi access points and charging stations are also distributed throughout O'Hare.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://flychicago.com/ohare/ServicesAmenities/Pages/default.aspx",
            "title": "Services and Amenities | Chicago O’Hare International Airport  (ORD)",
            "favicon": "https://flychicago.com/_catalogs/masterpage/favicon.ico"
          },
          {
            "url": "https://flychicago.com/ohare/ServicesAmenities/services/pages/default.aspx",
            "title": "Services  | Chicago O’Hare International Airport  (ORD)",
            "favicon": "https://flychicago.com/_catalogs/masterpage/favicon.ico"
          },
          {
            "url": "https://flychicago.com/ohare/ServicesAmenities/services/Pages/lounges.aspx",
            "title": "Airline Lounges | Chicago O’Hare International Airport  (ORD)",
            "favicon": "https://flychicago.com/_catalogs/masterpage/favicon.ico"
          },
          {
            "url": "https://faa.gov/about/office_org/headquarters_offices/ato/service_units/air_traffic_services/atct/ord",
            "title": "Chicago O'Hare International Airport (ORD) | Federal Aviation Administration",
            "favicon": "https://faa.gov/themes/custom/faa/favicon.png"
          },
          {
            "url": "https://flychicago.com/ohare/ServicesAmenities/services/Pages/children.aspx",
            "title": "Traveling with Children | Chicago O’Hare International Airport (ORD)",
            "favicon": "https://flychicago.com/_catalogs/masterpage/favicon.ico"
          }
        ]
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Lisbon and Chicago airports?",
        "answer": "At Lisbon Portela Airport, mobility assistance and services for travelers with disabilities are available, and passengers should contact their airline in advance to arrange wheelchair assistance; children's play areas are not specifically mentioned in the available information. At Chicago O'Hare International Airport, wheelchair assistance and disability accommodations must be requested directly from the airline, ideally at least 48 hours before travel, and the airport offers a Family Lounge in Terminal 2 as a children's facility. Passengers at O'Hare can also contact Travelers Aid at (773) 894-2427 for guidance, including for first-time child travelers with disabilities.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://lisbon-lis.airports-guides.com",
            "title": "Lisbon Portela Airport (LIS) Information: LIS Airport in Lisbon Area, Portugal",
            "favicon": "http://www.airports-guides.com/favicon.ico"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Lisbon_Airport",
            "title": "Lisbon Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-09-14T10:27:02Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Port_of_Lisbon",
            "title": "Port of Lisbon",
            "time_published": "2026-05-17T01:54:27Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Lisbon_Luís_de_Camões_Airport",
            "title": "Lisbon Luís de Camões Airport",
            "time_published": "2026-07-07T19:34:51Z"
          },
          {
            "url": "https://flychicago.com/ohare/ServicesAmenities/accessibility/Pages/default.aspx",
            "title": "Accessibility Guide | Chicago O’Hare International Airport (ORD)",
            "favicon": "https://flychicago.com/_catalogs/masterpage/favicon.ico"
          },
          {
            "url": "https://flychicago.com/ohare/ServicesAmenities/accessibility/Pages/Terminal-Accessibility.aspx",
            "title": "Terminal Accessibility",
            "favicon": "https://flychicago.com/_catalogs/masterpage/favicon.ico"
          },
          {
            "url": "https://flychicago.com/ohare/ServicesAmenities/services/Pages/travelersaid.aspx",
            "title": "Travelers Aid | Chicago O’Hare International Airport (ORD)",
            "favicon": "https://flychicago.com/_catalogs/masterpage/favicon.ico"
          },
          {
            "url": "https://www.flychicago.com/ohare/home/pages/default.aspx",
            "title": "O’Hare International Airport",
            "favicon": "https://www.flychicago.com/_catalogs/masterpage/favicon.ico"
          },
          {
            "url": "https://faa.gov/flight_deck/ord",
            "title": "Chicago O'Hare International Airport (ORD) | Federal Aviation Administration",
            "favicon": "https://faa.gov/themes/custom/faa/favicon.png"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Lisbon to Chicago?",
        "answer": "TAP Air Portugal operates the only nonstop service from Lisbon to Chicago, flying the Airbus A330-900neo on this route. No other carriers or aircraft types are listed for nonstop flights between these cities.",
        "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"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Lisbon?",
        "answer": "Lisbon Portela Airport has one listed lounge, the ANA Lounge in Terminal 1, open from 04:00 to 23:00. It is rated 4.1 out of 5 and is described as an exclusive space designed for comfort and peace. Access is available through Priority Pass and the American Express Platinum Card.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://prioritypass.com/en-GB/lounges/portugal/lisbon-portela",
            "title": "Lisbon Airport LIS Lounges - LIS Airport Guide and lounges. | Priority Pass",
            "favicon": "https://prioritypass.com/icon.png?a4ff481221414a5c",
            "time_published": "2026-06-30T08:24:25Z"
          },
          {
            "url": "https://prioritypass.com/de-DE/lounges/portugal/lisbon-portela",
            "title": "Lisbon Airport LIS Lounges - LIS Airport Guide and lounges. | Priority Pass",
            "favicon": "https://prioritypass.com/icon.png?a4ff481221414a5c"
          },
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/LIS",
            "title": "American Express Lounges at Lisbon Portela Airport | Amex US",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "https://americanexpress.com/en-ca/travel/lounges/the-platinum-card/LIS",
            "title": "American Express Lounges at Lisbon Portela Airport | Amex CA",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "https://aa.com/i18n/travelInformation/destinationInformation/lis-airport.jsp",
            "title": "Lisbon, Portugal (LIS)",
            "favicon": "https://aa.com/content/images/chrome/rebrand/favicon.png"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Lisbon to Chicago?",
        "answer": "Baggage rules on Lisbon–Chicago flights depend on the airline and fare class. Basic Economy often excludes checked bags but still permits a carry‑on. Standard international economy typically includes one checked bag, while premium cabins offer more."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Lisbon to Chicago?",
        "answer": "Flights from Lisbon to Chicago generally offer Economy, Premium Economy, and flat-bed Business class."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies vary by airline and fare; flexible and premium cabin tickets typically allow same‑day changes or standby, while deeply discounted economy fares generally do not."
      }
    }
  }
}