{
  "response": {
    "Key": "IAD-LIS",
    "orig": {
      "code": "IAD",
      "city": "Washington D.C.",
      "fullCity": "Washington D.C., United States",
      "airport": "Washington Intl Airport"
    },
    "dest": {
      "code": "LIS",
      "city": "Lisbon",
      "fullCity": "Lisbon, Portugal",
      "airport": "Humberto Delgado Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Washington D.C. to Lisbon?",
        "answer": "A nonstop flight from Washington D.C. (IAD) to Lisbon (LIS) takes approximately 7 hours 30 minutes. Flights with layovers typically range from 9 to 12 hours depending on the connection city and duration."
      },
      "q1": {
        "question": "Are there any direct flights from Washington D.C. to Lisbon?",
        "answer": "Yes. Non-stop flights from Washington D.C. to Lisbon are available daily, operated mainly by TAP Air Portugal with a flight duration of approximately 7 hours 30 minutes. This is the primary carrier offering direct service; other airlines typically operate one-stop flights with longer durations. Non-stop flights tend to be about 10-20% more expensive than one-stop options."
      },
      "q2": {
        "question": "Are there visa requirements to travel from Washington D.C. to Lisbon?",
        "answer": "U.S. citizens traveling from Washington D.C. to Lisbon do not need a visa for short stays up to 90 days for tourism or business purposes. Portuguese nationals do not require a visa to enter the United States for short visits. However, U.S. travelers to Portugal should ensure their passports are valid for at least three months beyond their planned departure date. Starting from November 2023, U.S. citizens traveling to Portugal under the Schengen Area agreement must complete an ETIAS travel authorization before their trip."
      },
      "q3": {
        "question": "What are the ground transportation options in Lisbon?",
        "answer": "In Lisbon, ground transportation from Humberto Delgado Airport to the city center is efficient and diverse. The metro Line 1 connects the airport directly to the city center in about twenty minutes and is the most used mode due to its affordability and speed. Taxis and ride-share services are available outside the arrivals area, offering convenient but more costly options, taking approximately fifteen to twenty minutes depending on traffic. Bus services also operate but are less direct and slower. Car rentals are available at the airport for regional travel but are less practical for city center access. The metro is the most popular choice among travelers for its balance of cost and convenience."
      },
      "q4": {
        "question": "When is the cheapest time to fly from Washington D.C. to Lisbon?",
        "answer": "Lowest fares are usually from January to March and late October to December. Tuesdays and Wednesday afternoon flights tend to be more affordable; booking about two to three months in advance can secure the best deals."
      },
      "q5": {
        "question": "How far in advance should I book tickets from Washington D.C. to Lisbon?",
        "answer": "Reserve tickets twelve to twenty weeks in advance for regular travel and twenty to twenty-four weeks during summer and holiday seasons."
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Washington D.C. to Lisbon?",
        "answer": "Yes. Flights from Washington D.C. to Lisbon often depart late evening and arrive early the next morning, allowing travelers to maximize daytime for activities."
      },
      "q7": {
        "question": "Which airlines usually operate this route from Washington D.C. to Lisbon?",
        "answer": "American Airlines and TAP Air Portugal offer non‑stop flights. One‑stop options include Lufthansa, Air France, and British Airways via European hubs."
      },
      "q8": {
        "question": "If I need a connection, what are common layover cities between Washington D.C. and Lisbon?",
        "answer": "Common layovers include London, Madrid, Lisbon and Paris, offering broad connections and efficient transfers."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Washington D.C. to Lisbon?",
        "answer": "On‑time departures from Washington D.C. to Lisbon are usually reliable, though delays can occur due to weather or air traffic. Booking early flights, especially with TAP Air Portugal or United Airlines, can improve your chances of on-time departure."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Lisbon?",
        "answer": "April to June and September to October offer mild temperatures and fewer tourists."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Washington D.C. to Lisbon?",
        "answer": "Bring a valid passport with at least six months of validity remaining, any necessary visa or Portuguese travel authorization such as a Schengen visa or ETIAS, proof of onward or return travel, and a payment method for baggage. Check current COVID-19 vaccination or testing requirements for Portugal."
      },
      "q12": {
        "question": "Which airport should I use in Lisbon?",
        "answer": "Lisbon Portela Airport is the main international gateway, located close to downtown and serving most international airlines. It is suitable for both business and leisure travelers."
      },
      "q13": {
        "question": "How do I get to Washington Intl Airport airport from the city center?",
        "answer": "From downtown Washington D.C. to Dulles Airport, the Silver Line Metrorail train is the fastest and most popular, taking about 40–50 minutes. Rideshares and taxis are quicker, around 20–30 minutes, but more expensive. Shuttle services and driving with parking are also available."
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Lisbon airport?",
        "answer": "Lisbon Airport features the Hotel Ibis Lisboa and the Myriad by SANA Hotels, both connected directly to the airport terminals. No capsule hotels or sleeping pods are available on-site."
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Humberto Delgado Airport ?",
        "answer": "Lisbon Airport has currency exchange offices throughout the terminal, a dedicated prayer room, and free Wi‑Fi available in all areas."
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Washington D.C. and Lisbon airports?",
        "answer": "Washington Dulles offers wheelchair assistance and accessible facilities, with assistance requests at least 48 hours in advance; children’s play areas are limited. Lisbon Humberto Delgado provides accessible services, including wheelchair support and dedicated family zones; arrange 48 hours ahead."
      },
      "q17": {
        "question": "Which aircraft models fly between Washington D.C. and Lisbon this route and do airlines offer Wi‑Fi?",
        "answer": "Airlines like TAP and United operate Airbus A330 and Boeing 767 aircraft on IAD to LIS. Wi‑Fi and inflight entertainment are usually available."
      },
      "q18": {
        "question": "Which airline alliances operate this route?",
        "answer": "Star Alliance (Lufthansa, TAP Air Portugal), oneworld and SkyTeam do not operate this route directly; check specific airline options."
      },
      "q19": {
        "question": "What is the cheapest time of day to fly from Washington D.C. to Lisbon?",
        "answer": "Afternoon departures on weekdays are typically the most economical for flights from Washington D.C. to Lisbon."
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Washington D.C.?",
        "answer": "At Washington Dulles, the United Club and the American Admirals Club provide comfortable seating, complimentary snacks, Wi-Fi, and showers. United Club requires business or first class ticket, elite status, or membership. Admirals Club access is similar, with some lounges offering day passes for a fee."
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Washington D.C. to Lisbon?",
        "answer": "Baggage allowances from Washington D.C. to Lisbon vary by airline and fare class. Basic economy fares may not include checked bags; standard international economy usually includes one checked bag and a carry‑on. Higher fares may include additional checked bags."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Washington D.C. to Lisbon?",
        "answer": "Flights from Washington D.C. to Lisbon generally include Economy, Premium Economy on select airlines, and flat‑bed Business class."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies vary by airline and fare class; flexible and premium tickets typically offer same‑day change or standby options, whereas economy tickets usually do not."
      }
    }
  }
}