{
  "response": {
    "Key": "CLT-LIS",
    "orig": {
      "code": "CLT",
      "type": "airport",
      "city": "Charlotte",
      "fullCity": "Charlotte, North Carolina",
      "airport": "Douglas Intl Airport"
    },
    "dest": {
      "code": "LIS",
      "type": "airport",
      "city": "Lisbon",
      "fullCity": "Lisbon, Portugal",
      "airport": "Humberto Delgado Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Charlotte to Lisbon?",
        "answer": "A nonstop flight from Charlotte (CLT) to Lisbon (LIS) takes about 7 hours 30 minutes to 8 hours. With a common layover in cities like New York or Philadelphia, total travel time typically ranges from 10 to 13 hours. The return flight is often slightly shorter, usually around 7 hours nonstop."
      },
      "q1": {
        "question": "Are there any direct flights from Charlotte to Lisbon?",
        "answer": "There are no nonstop flights from Charlotte (CLT) to Lisbon (LIS). The quickest one-stop routings connect through Philadelphia (PHL) on American, taking about 10 hours 45 minutes total, or through Washington Dulles (IAD) on United at roughly 9 hours 30 minutes. American also offers a connection via London Heathrow (LHR) with a flight time around 12 hours 40 minutes including the layover.",
        "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 and weekly frequencies are summarized from our flight-schedule database, which draws on published airline timetables, U.S. government schedule data, and observed operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). Where available, on-time and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, and typical fares from the U.S. DOT Airline Origin and Destination Survey (DB1B), a quarterly 10% sample of tickets sold. 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"
        ]
      },
      "q2": {
        "question": "Are there visa requirements to travel from Charlotte to Lisbon?",
        "answer": "For a flight from Charlotte to Lisbon, U.S. citizens do not need a visa for short stays up to 90 days within a 180-day period in Portugal, as it is part of the Schengen Area. Starting in 2025, U.S. citizens will need an ETIAS authorization before travel. Portuguese citizens traveling to the U.S. require either a visa or an ESTA authorization under the Visa Waiver Program for short visits. Other nationalities should check specific visa requirements for both destinations."
      },
      "q3": {
        "question": "What are the ground transportation options in Lisbon?",
        "answer": "From Lisbon Airport (LIS), you can reach the city center by Aerobus shuttle, public bus, taxi, or rideshare; there is no direct train, but nearby metro stations can be reached by taxi. The Aerobus (Lines 1 and 2) is the most popular and efficient option, running every 20–25 minutes and taking 20–40 minutes to the center for €4. Public buses (routes 5, 22, 44, 45, 83) are cheaper but slower. Taxis are available outside arrivals with a surcharge, and rideshare apps like Uber also operate. Car rentals are on-site, but driving and parking in Lisbon are challenging.",
        "toolsUsed": [],
        "references": [
          {
            "url": "http://lisbon-lis.airports-guides.com",
            "title": "Lisbon Portela Airport (LIS) Information: LIS Airport in Lisbon Area, Portugal"
          },
          {
            "url": "http://www.lisbon-lis.airports-guides.com/lis_airport_transport.html",
            "title": "Lisbon Portela Airport (LIS) Travel, Transport: Travel at Airports in Lisbon Area, Portugal",
            "time_published": "2016-03-03T00:00:00Z"
          },
          {
            "url": "https://www.lisbon-airport.net/",
            "title": "Lisbon Airport (LIS)"
          },
          {
            "url": "https://lisbonairport.net/lisbon-airport-transfers/bus/",
            "title": "Getting to Lisbon Airport by Bus",
            "time_published": "2019-03-02T00:00:00Z"
          },
          {
            "url": "https://lisbonairport.net",
            "title": "Lisbon Airport | Guide to Lisbon Airport (LIS)"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Charlotte to Lisbon?",
        "answer": "The cheapest months to fly from Charlotte to Lisbon are November, April, February, and October, with average fares between $817 and $837. The most expensive months are June, July, and May, where average prices range from $1,099 to $1,294.",
        "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 Charlotte to Lisbon?",
        "answer": "For flights from Charlotte to Lisbon, the best fares typically appear when booking 8 to 11 weeks ahead, with an average price of $842 in that window. The absolute cheapest point in the data is around 60 days out at about $827, while booking far in advance (e.g., 135 days) can push prices up to $959. For peak summer or holiday periods, you'll likely need to book even earlier to secure the best rates, as demand drives prices higher.",
        "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 Charlotte to Lisbon?",
        "answer": "Yes, connecting overnight (red‑eye) itineraries are available from Charlotte to Lisbon. The long leg departs CLT in the evening — for example, American Airlines via London Heathrow departs at 8:15 PM and arrives at 9:05 AM, Lufthansa via Munich departs at 6:40 PM arriving 9:15 AM, and American via Dublin departs at 9:10 PM arriving 9:35 AM — all landing the next morning. Other one‑stop red‑eye options connect through Philadelphia, Washington Dulles, Toronto, or Newark on carriers including United, Air Canada, and TAP, with the overnight leg typically departing between roughly 6:40 PM and 11:00 PM and arriving between 8:20 AM and 11:05 AM.",
        "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 Charlotte to Lisbon?",
        "answer": "There are no nonstop flights from Charlotte to Lisbon. The most common one-stop connections are on American Airlines via London Heathrow (around 18 daily) or Philadelphia (7 daily), and United via Washington Dulles (6 daily). Air Canada via Toronto also appears several times daily. Fares aren't provided in the route data, so I can't give typical prices for these carriers.",
        "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 Charlotte and Lisbon?",
        "answer": "Common layover cities include New York (JFK), Philadelphia, London, and Madrid. New York and Philadelphia offer many daily flights from Charlotte and efficient connections to Lisbon. London and Madrid provide broad onward connections, with Madrid often enabling shorter total travel time due to its proximity to Lisbon. US citizens can transit visa-free in all these cities."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Charlotte to Lisbon?",
        "answer": "On-time performance is generally dependable, though afternoon thunderstorms at CLT can cause delays. Early morning flights, particularly those operated by American Airlines, tend to depart more reliably."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Lisbon?",
        "answer": "May to June and September to October offer pleasant temperatures, sunny days, and fewer tourists."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Charlotte to Lisbon?",
        "answer": "Bring a passport valid for at least three months beyond your stay, proof of onward or return travel, and a payment method for baggage. U.S. citizens do not need a visa for stays under 90 days, but check for any health document requirements."
      },
      "q12": {
        "question": "Which airport should I use in Lisbon?",
        "answer": "Lisbon has only one airport, Humberto Delgado Airport, located about 7 km from the city centre, serving both international and domestic flights."
      },
      "q13": {
        "question": "How do I get to Douglas Intl Airport from the city center?",
        "answer": "From Uptown Charlotte, the most popular and affordable option is the CATS Sprinter bus (Route 5), which runs directly to the airport with frequent service. Ride‑share services like Uber and Lyft offer a faster, door‑to‑door trip, while taxis are also available curbside at the terminal. Driving yourself is straightforward via I‑85 and Billy Graham Parkway, with several on‑site parking choices ranging from hourly decks to economy lots.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://www.cltairport.com/to-and-from/",
            "title": "Ground Transportation - Charlotte Douglas International Airport",
            "time_published": "2026-04-07T00:00:00Z"
          },
          {
            "url": "https://cltairport.com/airport-info/accessibility/accessible-parking/accessible-ground-transportation/",
            "title": "Accessible Ground Transportation - Charlotte Douglas International Airport",
            "favicon": "https://cltairport.com/cltairport.png",
            "time_published": "2026-03-09T15:43:51Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transportation%20in%20Charlotte%2C%20North%20Carolina",
            "title": "Transportation in Charlotte, North Carolina",
            "time_published": "2026-03-21T17:16:29Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transportation_in_Charlotte,_North_Carolina",
            "title": "Transportation in Charlotte, North Carolina",
            "time_published": "2026-03-21T17:16:29Z"
          },
          {
            "url": "https://www.faa.gov/AIR_TRAFFIC/FLIGHT_INFO/AERONAV/PROCEDURES/application/index.cfm?event=directory&directory=69671A4500874A0E99D7298A6E848342-CLT-NDBR&type=ndbr&nasrId=CLT",
            "title": "USA Banner",
            "time_published": "2025-06-26T00:00:00Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Lisbon airport?",
        "answer": "Lisbon Airport does not have any on-site hotels, capsule hotels, or sleeping pods inside the terminals, but there are several nearby hotels connected by shuttle. The Meliá Lisboa Aeroporto is a short walk from Terminal 1 via a covered walkway, and the TRYP Lisboa Aeroporto Hotel is also close by with a shuttle service. Other options like the Star Inn Lisbon Airport are reachable by a free shuttle bus that runs 24/7.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://www.sleepinginairports.net/guides/lisbon-airport-guide.htm",
            "title": "Lisbon Airport Guide (LIS) - 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": "2018-09-02T00:00:05Z"
          },
          {
            "url": "https://www.sleepinginairports.net/hotels/lisbon-airport-hotels.htm",
            "title": "Lisbon Airport Guide (LIS) - Sleeping in Airports",
            "time_published": "2026-04-13T18:11:40Z"
          },
          {
            "url": "http://lisbon-lis.airports-guides.com",
            "title": "Lisbon Portela Airport (LIS) Information: LIS Airport in Lisbon Area, Portugal"
          },
          {
            "url": "http://www.lisbon-lis.airports-guides.com/lis_airport_facilities.html",
            "title": "Lisbon Portela Airport (LIS) Facilities, Info: Services at Airports in Lisbon Area, Portugal",
            "time_published": "2016-03-03T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Lisbon_Airport",
            "title": "Lisbon Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-20T16:51:21Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Lisbon%20Airport",
            "title": "Lisbon Airport",
            "time_published": "2026-04-30T23:41:16Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Charlotte to Lisbon?",
        "answer": "There is no nonstop service from Charlotte to Lisbon; connecting itineraries typically use a widebody across the Atlantic. The most common long-haul aircraft on this route are the Boeing 777-300ER, 777-200, and 787-9, operated by American Airlines, United, and Air Canada via hubs like London Heathrow, Washington Dulles, Philadelphia, and Toronto. On other connections, the Airbus A350-900, A330-200, and A330-900 Neo also appear, though the exact type varies by day and airline.",
        "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 Charlotte to Lisbon?",
        "answer": "There are no nonstop flights from Charlotte to Lisbon, but one-stop itineraries are operated by American Airlines (Oneworld), United Airlines (Star Alliance), Air Canada (Star Alliance), Lufthansa (Star Alliance), and TAP Air Portugal (Star Alliance). No major unaligned carrier like JetBlue or Emirates operates the long leg on this route; JetBlue appears only as a short feeder on a single TAP itinerary.",
        "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 Charlotte?",
        "answer": "At Charlotte Douglas International Airport, American Airlines operates an Admirals Club in Concourses B and C, accessible with a day pass, qualifying elite status, or business/first class ticket, and featuring complimentary snacks, drinks, and Wi-Fi. The Centurion Lounge by American Express is located in Concourse D/E and welcomes Platinum Card members and Centurion guests with a hot buffet, craft cocktails, and a shower suite. Delta Sky Club is available in Concourse A for Delta premium cabin passengers, elite members, and eligible credit card holders, offering a full bar and light meals. The Club CLT in Concourse A, part of the Priority Pass network, provides a quieter space with a children's play area, showers for a fee, and complimentary alcoholic drinks.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/CLT",
            "title": "American Express Lounges at Charlotte Douglas International Airport | Amex US",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/CLT/the-club-clt-main-terminal-concourse-a-yio41B7H6z",
            "title": "The Club CLT at Charlotte Douglas 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/charlotte-douglas-international/clt5-the-club-clt",
            "title": "The Club CLT CLT AIRPORT Concourse A Charlotte Douglas International | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://www.cltairport.com/",
            "title": "Charlotte Douglas International Airport",
            "favicon": "https://www.cltairport.com/cltairport.png",
            "time_published": "2025-05-27T14:52:48Z"
          },
          {
            "url": "https://prioritypass.com/lounges/usa/charlotte-nc-douglas-intl",
            "title": "Charlotte-Douglas International Airport CLT Lounges - CLT Airport Guide and lounges.  | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Charlotte to Lisbon?",
        "answer": "On Charlotte–Lisbon flights, Basic Economy fares often exclude checked baggage. Standard international economy typically includes one checked bag and a carry‑on, while premium cabins allow two checked bags and larger carry‑ons."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Charlotte to Lisbon?",
        "answer": "Charlotte to Lisbon flights typically offer Economy and flat-bed Business class; Premium Economy is available on select airlines, while First class is uncommon."
      },
      "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 Basic Economy usually does not."
      }
    }
  }
}