{
  "response": {
    "Key": "IAD-KTM",
    "orig": {
      "code": "IAD",
      "type": "airport",
      "city": "Washington D.C.",
      "fullCity": "Washington D.C., United States",
      "airport": "Washington Intl Airport"
    },
    "dest": {
      "code": "KTM",
      "type": "airport",
      "city": "Kathmandu",
      "fullCity": "Kathmandu, Nepal",
      "airport": "Tribhuvan Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Washington D.C. to Kathmandu?",
        "answer": "There are no nonstop flights from Washington D.C. (IAD) to Kathmandu (KTM). Typical one-stop itineraries take 18 to 22 hours, depending on the layover. Common connecting cities include Doha, Dubai, and Istanbul. The return flight often takes a similar duration, though flight times can vary slightly due to winds. Airlines like Qatar Airways, Emirates, and Turkish Airlines frequently offer efficient one-stop service."
      },
      "q1": {
        "question": "Are there any direct flights from Washington D.C. to Kathmandu?",
        "answer": "There are no nonstop flights from Washington Dulles (IAD) to Kathmandu (KTM). The shortest connecting routing is typically via Doha on Qatar Airways, taking about 15 hours in the air plus a roughly 2.5‑hour layover for a total travel time around 17–18 hours; other common one‑stop options include Emirates via Dubai and Turkish Airlines via Istanbul.",
        "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.",
        "toolsUsed": [
          "route_airlines"
        ]
      },
      "q2": {
        "question": "Are there visa requirements to travel from Washington D.C. to Kathmandu?",
        "answer": "Yes, there are visa requirements for travel from Washington D.C. to Kathmandu. U.S. citizens must obtain a visa before arrival; you can apply for a tourist visa at the Embassy of Nepal in Washington D.C. or get a visa on arrival at Kathmandu airport, provided you have a passport valid for at least six months, a passport photo, and the visa fee in cash. Nationals of other countries should check Nepal's visa policy based on their citizenship, as some may be eligible for visa on arrival while others need a pre-approved visa. For Nepali citizens traveling to the U.S., a valid U.S. visa is required."
      },
      "q3": {
        "question": "What are the ground transportation options in Kathmandu?",
        "answer": "From Tribhuvan International Airport (KTM) to central Kathmandu, taxis are the most common and practical option, taking about twenty to forty minutes depending on traffic and your exact destination in Thamel or Durbar Marg. Prepaid taxi booths inside the terminal offer fixed rates, which help avoid haggling. Ride‑sharing apps like Pathao and Tootle are available and often cheaper than taxis, but you may need a local SIM card to book. Public buses exist but are crowded, slow, and not recommended for visitors with luggage. Car rentals are possible but rarely used for city transfers due to chaotic traffic and limited parking. The most used and reliable choice is a prepaid taxi."
      },
      "q4": {
        "question": "When is the cheapest time to fly from Washington D.C. to Kathmandu?",
        "answer": "Based on seasonal price data for flights from Washington D.C. (IAD) to Kathmandu (KTM), the cheapest months to fly are April, March, and September, with average fares around $1,511, $1,524, and $1,542 respectively. The most expensive months are December, June, and July, where average prices climb to approximately $2,204, $2,025, and $1,857.",
        "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 Washington D.C. to Kathmandu?",
        "answer": "For Washington D.C. (IAD) to Kathmandu (KTM), the optimal booking window is roughly 2 to 5 weeks before departure, with average fares around $1,656 and the cheapest price of $1,642 appearing about 30 days out. Booking very last‑minute (0 days ahead) can cost around $2,020, while booking more than 6 weeks in advance generally stays near $1,700 but doesn't beat the 2‑5 week sweet spot. During summer and holiday peaks, you should book earlier — at least 6 to 8 weeks ahead — as prices tend to rise and availability tightens.",
        "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 Washington D.C. to Kathmandu?",
        "answer": "No overnight (red‑eye) flights are available from Washington D.C. (IAD) to Kathmandu (KTM). Neither nonstop red‑eyes nor connecting itineraries with a red‑eye long leg were found in the schedule data.",
        "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 Washington D.C. to Kathmandu?",
        "answer": "There are no nonstop flights from Washington D.C. (IAD) to Kathmandu (KTM). Common one-stop routings include Qatar Airways via Doha, Emirates via Dubai (with the Kathmandu leg often operated by flydubai or Nepal Airlines), and Turkish Airlines via Istanbul. These connections typically appear daily or several times a week, though exact schedules can vary.",
        "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.",
        "toolsUsed": [
          "route_airlines"
        ]
      },
      "q8": {
        "question": "If I need a connection, what are common layover cities between Washington D.C. and Kathmandu?",
        "answer": "Common layover cities for this route include Doha, Dubai, and Istanbul. Doha and Dubai offer efficient single-connection itineraries with competitive total travel times and broad onward connections via Qatar Airways and Emirates. Istanbul provides another strong option with Turkish Airlines, often featuring reasonable layover durations. All three hubs allow visa-free transit for many nationalities, streamlining the journey."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Washington D.C. to Kathmandu?",
        "answer": "On‑time performance is generally decent, though long‑haul connections add variability. Early morning departures from Dulles offer the best odds for staying on schedule, especially when flying with carriers like Qatar Airways or Turkish Airlines that have strong hub efficiency."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Kathmandu?",
        "answer": "October to November and March to April offer clear skies, mild temperatures, and fewer tourists than the peak autumn season."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Washington D.C. to Kathmandu?",
        "answer": "Bring a passport valid for at least six months beyond your arrival date, a Nepalese visa obtained in advance or on arrival, and proof of onward or return travel. Have a payment method for baggage fees. Check if vaccination certificates, such as yellow fever, are required based on your travel history. Real ID is not relevant for international travel."
      },
      "q12": {
        "question": "Which airport should I use in Kathmandu?",
        "answer": "Kathmandu has only one international airport, Tribhuvan International Airport (KTM), located about 6 km east of the city centre. It serves all international and domestic flights, connecting to major hubs in Asia and the Middle East."
      },
      "q13": {
        "question": "How do I get to Washington Intl Airport from the city center?",
        "answer": "From downtown D.C. to Dulles, the Silver Line Metro takes about 50–60 min and is the cheapest option. Rideshares and taxis are faster at 35–45 min but cost more. Shuttle buses and parking are also available."
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Kathmandu airport?",
        "answer": "No on-site hotels or sleeping pods exist at Tribhuvan International Airport. Nearby options like the Airport Hotel and Hotel Airport Gurkha are within a short walk or offer shuttle services, but none are directly inside the terminal."
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Tribhuvan Intl Airport?",
        "answer": "Yes, Tribhuvan International Airport has currency exchange counters in the arrivals hall, a prayer room in the international terminal, and free Wi‑Fi available throughout the airport."
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Washington D.C. and Kathmandu airports?",
        "answer": "Washington Dulles offers wheelchair assistance, accessible restrooms, TTY phones, and a sensory room; request help 48 hours in advance through your airline. It has no dedicated children's play area. Kathmandu Tribhuvan has limited accessibility with basic wheelchair service and no dedicated children's facilities; arrange assistance at check-in or in advance directly with your airline."
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Washington D.C. to Kathmandu?",
        "answer": "There is no nonstop service from Washington D.C. (IAD) to Kathmandu (KTM); typical connecting itineraries use Boeing 777s (including 777-300ER), Airbus A350-900s, and Boeing 787-9s on the long-haul leg, most often via Doha (Qatar Airways) or Dubai (Emirates), with shorter connecting segments operated by Boeing 787-8/9, 737 MAX 8, or A330 aircraft. The exact aircraft can vary by day and airline, but these widebody types are the most common on this route.",
        "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 Washington D.C. to Kathmandu?",
        "answer": "From Washington D.C. (IAD) to Kathmandu (KTM), the one-stop connecting patterns in the schedule data show Qatar Airways (oneworld alliance), Turkish Airlines (Star Alliance), and Emirates (no global alliance). So oneworld and Star Alliance serve this route through their member carriers, while Emirates is a major operator that belongs to no alliance.",
        "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.",
        "toolsUsed": [
          "route_airlines"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Washington D.C.?",
        "answer": "At Washington Dulles, the United Club in Concourse C and D offers complimentary entry for United Club members, business-class passengers, and Star Alliance Gold members, with views of the tarmac and light snacks. The Turkish Airlines Lounge in Concourse B provides a la carte dining and a relaxation area for business-class travelers and Priority Pass holders. The Air France-KLM Lounge in Concourse A features a self-serve bar and quiet seating, accessible with business-class tickets or certain elite statuses."
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Washington D.C. to Kathmandu?",
        "answer": "Baggage rules vary by airline on the Washington, D.C. to Kathmandu route. Basic Economy tickets often exclude a checked bag and may limit carry-on. Standard international economy fares typically include one checked bag and a carry-on. Premium cabins permit more."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Washington D.C. to Kathmandu?",
        "answer": "Flights from Washington D.C. to Kathmandu typically offer Economy and flat-bed Business class; Premium Economy is available on select connecting carriers, and First class is not common."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies vary by airline and fare; flexible and premium cabin tickets often allow same‑day changes or standby, while basic economy typically does not."
      },
      "q24": {
        "question": "What are the cheapest days and times to fly from Washington D.C. to Kathmandu?",
        "answer": "Based on fare data for Washington D.C. (IAD) to Kathmandu (KTM), the cheapest day to fly is Tuesday with an average fare of $2,209, while Friday is the most expensive day at $2,618 on average. The cheapest time of day to depart is the Morning window, with fares starting at $1,317, compared to Late Night departures which start higher at $1,684.",
        "methodology": "The cheapest day of the week and time of day to depart are drawn from the same large sample of real fares Priceline users found on this route in the last 72 hours, grouped by the day of the week and by the time-of-day window of the outbound departure, with the lowest and average price reported for each.",
        "relevant": true,
        "toolsUsed": [
          "departure_timing"
        ]
      },
      "q25": {
        "question": "What is a good price for a flight from Washington D.C. to Kathmandu?",
        "answer": "A good price for a flight from Washington D.C. (IAD) to Kathmandu (KTM) is anything under $1,597, which is the great-deal threshold, while the typical fare is around $2,202.",
        "methodology": "The typical price, the lowest fare, a 'great deal' threshold, and how fares are spread across price bands are summarized from a large sample of the real fares Priceline users found on this route in the last 72 hours, with a small fraction of extreme outlier fares excluded from the range.",
        "relevant": true,
        "toolsUsed": [
          "price_context"
        ]
      }
    }
  }
}