{"response": {"Key": "KTM-IAD", "orig": {"code": "KTM", "type": "airport", "city": "Kathmandu", "fullCity": "Kathmandu, Nepal", "airport": "Tribhuvan Intl Airport"}, "dest": {"code": "IAD", "type": "airport", "city": "Washington", "fullCity": "Washington, United States", "airport": "Washington Intl Airport"}, "faq": {"q0": {"question": "What is the typical flight duration from Kathmandu to Washington?", "answer": "The flight distance from Kathmandu to Washington is about 7,700 miles. There is no scheduled nonstop service on this route, so the journey requires at least one connection. A typical one-stop total travel time is approximately 20 to 24 hours, depending on the layover.", "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"]}, "q3": {"question": "What are the ground transportation options in Washington?", "answer": "From Washington Dulles (IAD), the Silver Line Express bus ($5) connects to the Metrorail Silver Line for trains into DC; it's the most-used budget option but limited overnight. Taxis (Washington Flyer, 24/7) and ride shares (Uber/Lyft) offer direct, faster door-to-door service—taxis are the most-used overall. Shared vans (SuperShuttle/Supreme Shuttle) provide a middle ground. Car rentals are available but less practical for city-center trips given parking costs.", "toolsUsed": [], "references": [{"url": "https://flydulles.com/flight-schedule-dulles-international-airport-iad", "title": "flydulles.com - Flight Schedule - Dulles International Airport (IAD)", "time_published": "2022-03-01T00:00:00Z"}, {"url": "https://parking.flydulles.com/economy-parking", "title": "Dulles International Airport Parking | Economy Parking", "time_published": "2026-02-06T00:00:00Z"}, {"url": "https://www.mwaa.com/ipw-2017-archived", "title": "IPW 2017 - Archived", "time_published": "2021-02-01T00:00:00Z"}, {"url": "https://www.mwaa.com/policefireems/fire-ems/fire-ems-washington-dulles-international-airport", "title": "mwaa.com - Fire & EMS at Washington Dulles International Airport", "favicon": "https://www.mwaa.com/themes/custom/mwaa_barrio/favicon.ico", "time_published": "2023-09-01T00:00:00Z"}, {"url": "https://en.wikipedia.org/wiki/Dulles%20International%20Airport", "title": "Dulles International Airport", "time_published": "2026-04-30T14:07:38Z"}]}, "q4": {"question": "When is the cheapest time to fly from Kathmandu to Washington?", "answer": "The cheapest months to fly from Kathmandu to Washington are August, September, and April, with average fares around $1,446–$1,526. The most expensive months are December, June, and July, where average prices climb to $1,829–$2,040.", "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. For this route, fares for the requested travel direction were unavailable, so the pattern shown is derived from the reverse direction, which shares the same seasonal demand cycle.", "toolsUsed": ["seasonal_prices"]}, "q5": {"question": "How far in advance should I book tickets from Kathmandu to Washington?", "answer": "For flights from Kathmandu to Washington, the best time to book is about 6 to 9 weeks before departure, when average fares drop to around $1,640. Booking exactly 50 days ahead can yield the lowest price near $1,632, while waiting until the last minute pushes costs above $2,000. During peak summer and holiday periods, it's wise to lean toward the earlier end of that window or even a bit further out, as demand tends to drive 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. For this route, fares for the requested travel direction were unavailable, so the pattern shown is derived from the reverse direction, which shares the same seasonal demand cycle.", "toolsUsed": ["booking_timing"]}, "q6": {"question": "Are overnight (red‑eye) flights available from Kathmandu to Washington?", "answer": "No overnight (red-eye) flights are available from Kathmandu to Washington — neither as a nonstop nor as a connecting itinerary whose long leg departs late evening.", "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 Kathmandu to Washington?", "answer": "There are no nonstop flights from Kathmandu to Washington, but several airlines offer one-stop connections. Qatar Airways routes through Doha, with about nine daily departures on the search date. Emirates connects via Dubai on approximately four daily flights, and Turkish Airlines offers around two daily flights through Istanbul. Other carriers may also serve this route with different connections.", "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 Kathmandu and Washington?", "answer": "Common layover cities between Kathmandu and Washington include Doha, Dubai, Istanbul, and Abu Dhabi. These hubs offer efficient connections, broad route networks, and visa‑free transit for many nationalities, helping keep total travel time competitive."}, "q10": {"question": "Which months have the best weather for traveling to Washington?", "answer": "April to May and September to October offer pleasant temperatures, blooming or colorful foliage, and fewer tourists than summer."}, "q11": {"question": "What documents should I bring with me to the airport when flying from Kathmandu to Washington?", "answer": "Bring a passport valid for at least six months, a valid U.S. visa or ESTA authorization, proof of onward or return travel, a payment method for baggage fees, and any required vaccination certificates."}, "q12": {"question": "Which airport should I use in Washington?", "answer": "Washington Dulles is the primary international gateway for the region. Ronald Reagan National is closer to downtown and the monuments but handles mainly domestic flights. Baltimore/Washington International offers additional low‑cost and international options but is farther from central Washington."}, "q13": {"question": "How do I get to Tribhuvan Intl Airport from the city center?", "answer": "From central Kathmandu, taxis are the most popular and fastest option, taking about 20–30 minutes to the airport. Ride‑share apps like Pathao and Tootle also operate, offering a similar door‑to‑door experience. Public buses are available but can be slow and crowded; there are no dedicated airport shuttle buses. Driving yourself is possible but parking at the airport is limited, so most travelers prefer a taxi or ride‑share.", "toolsUsed": [], "references": [{"url": "https://www.airports-terminal.com/qatar-airways/qatar-airways-ktm-terminal-tribhuvan-international-airport/", "title": "Qatar Airways KTM Terminal - Tribhuvan International Airport", "time_published": "2024-06-21T00:00:00Z"}, {"url": "https://www.airports-terminal.com/lion-air/lion-air-ktm-terminal-tribhuvan-international-airport/", "title": "Lion Air KTM Terminal, Tribhuvan International Airport", "time_published": "2024-07-11T00:00:00Z"}, {"url": "https://en.wikipedia.org/wiki/Kuwait_Airways_Flight_221", "title": "Kuwait Airways Flight 221", "time_published": "2026-07-05T09:07:59Z"}, {"url": "https://en.wikipedia.org/wiki/List_of_Kuwait_Airways_destinations", "title": "List of Kuwait Airways destinations", "time_published": "2026-04-28T05:56:26Z"}, {"url": "https://www.airports-terminal.com/saurya-airlines/saurya-airlines-ktm-terminal-tribhuvan-international-airport/", "title": "Saurya Airlines KTM Terminal, Tribhuvan International Airport", "time_published": "2024-06-26T00:00:00Z"}]}, "q14": {"question": "Are there hotels or sleeping facilities at Washington airport?", "answer": "Washington Dulles Airport (IAD) does not have on-site capsule hotels or sleeping pods, but the Sleepbox Lounge offers 16 sound-proof rooms airside. The Washington Dulles Airport Marriott is located on airport grounds and connected by a free shuttle that runs every 15 minutes. No designated rest zones exist, though quiet spots can be found at gates C20 and D1.", "toolsUsed": [], "references": [{"url": "https://sleepinginairports.net/guides/washington-dulles-airport-guide.htm", "title": "Washington Dulles Airport Guide (IAD) - 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": "2018-08-08T21:11:21Z"}, {"url": "https://www.sleepinginairports.net/sleep-guide/sleeping-in-washington-dulles-airport.htm", "title": "Sleeping in Washington Dulles Airport", "time_published": "2024-09-12T00:00:00Z"}, {"url": "https://www.marriott.com/en-us/hotels/iadap-washington-dulles-airport-marriott/overview/?scid=d2406702-e8ea-4b45-bb9b-69", "title": "Hotel near IAD Airport | Washington Dulles Airport Marriott", "time_published": "2025-02-19T00:00:00Z"}, {"url": "https://www.marriott.com/en-us/hotels/iadap-washington-dulles-airport-marriott/overview/?scid=f2ae0541-1279-4f24-b197-a979c79310b0", "title": "Hotel near IAD Airport | Washington Dulles Airport Marriott", "time_published": "2024-10-11T00:00:00Z"}, {"url": "https://www.flydulles.com/", "title": "Official Website of Washington Dulles International Airport - IAD", "favicon": "https://www.flydulles.com/themes/custom/mwaa_barrio/favicon.ico", "time_published": "2026-07-17T00:00:00Z"}, {"url": "https://www.airportsdata.net/airport-IAD-accommodation/", "title": "Sleeping at Dulles airport - Washington D.C.", "time_published": "2025-12-01T00:00:00Z"}]}, "q16": {"question": "Are there accessible services or children's facilities at the Kathmandu and Washington airports?", "answer": "At Tribhuvan International Airport (KTM), families can find childcare rooms and play areas to keep children entertained, while mobility and special assistance are typically arranged through your airline—it's best to request wheelchair or disability services at least 48 hours before departure. Washington Dulles International Airport (IAD) offers comprehensive disability services, including wheelchair assistance and an ADA coordinator (Charles Wilson, reachable at (703) 417-8639) to address accessibility concerns, with airline-arranged assistance recommended 48 hours in advance; children’s play areas aren’t specifically highlighted on the airport website, but family-friendly amenities may be available through airline lounges or general terminal services.", "toolsUsed": [], "references": [{"url": "https://www.airports-terminal.com/lion-air/lion-air-ktm-terminal-tribhuvan-international-airport/", "title": "Lion Air KTM Terminal, Tribhuvan International Airport", "time_published": "2024-07-11T00:00:00Z"}, {"url": "https://www.airports-terminal.com/malaysia-airlines/malaysia-airlines-ktm-terminal-tribhuvan-international-airport/", "title": "Malaysia Airlines KTM Terminal, Tribhuvan International Airport", "time_published": "2024-03-05T00:00:00Z"}, {"url": "https://en.wikipedia.org/wiki/Kuwait_Airways_Flight_221", "title": "Kuwait Airways Flight 221", "time_published": "2026-07-05T09:07:59Z"}, {"url": "https://en.wikipedia.org/wiki/List_of_Kuwait_Airways_destinations", "title": "List of Kuwait Airways destinations", "time_published": "2026-04-28T05:56:26Z"}, {"url": "https://www.airports-terminal.com/qatar-airways/qatar-airways-ktm-terminal-tribhuvan-international-airport/", "title": "Qatar Airways KTM Terminal - Tribhuvan International Airport", "time_published": "2024-06-21T00:00:00Z"}, {"url": "https://www.flydulles.com/", "title": "Official Website of Washington Dulles International Airport - IAD", "favicon": "https://www.flydulles.com/themes/custom/mwaa_barrio/favicon.ico", "time_published": "2026-07-17T00:00:00Z"}, {"url": "https://www.flydulles.com/customer-service/disability-services", "title": "flydulles.com - Disability Services", "favicon": "https://www.flydulles.com/themes/custom/mwaa_barrio/favicon.ico"}, {"url": "https://www.mwaa.com/policies-regulations/civil-rights-patrons/ada-rehab-act-notice", "title": "mwaa.com - ADA Rehab Act Notice", "time_published": "2021-08-01T00:00:00Z"}, {"url": "https://en.wikipedia.org/wiki/Assistance%20for%20airline%20passengers%20with%20disabilities", "title": "Assistance for airline passengers with disabilities", "time_published": "2025-09-29T17:44:25Z"}, {"url": "https://www.mwaa.com/policefireems/fire-ems/fire-ems-washington-dulles-international-airport", "title": "mwaa.com - Fire & EMS at Washington Dulles International Airport", "favicon": "https://www.mwaa.com/themes/custom/mwaa_barrio/favicon.ico", "time_published": "2023-09-01T00:00:00Z"}]}, "q17": {"question": "What aircraft are typically used on flights from Kathmandu to Washington?", "answer": "There is no nonstop service between Kathmandu and Washington, so passengers connect through a Gulf or European hub. The most common aircraft on the long leg are the Boeing 777 (including the 777-300ER variant) via Doha on Qatar Airways, the Airbus A380-800 via Dubai on Emirates, and the Boeing 787-9 via Istanbul on Turkish Airlines. The exact aircraft can vary by day and airline, but these widebody types dominate the connecting routings.", "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 Kathmandu to Washington?", "answer": "Qatar Airways (oneworld) and Turkish Airlines (Star Alliance) are the alliance carriers serving Kathmandu to Washington with one-stop connections, while Emirates also operates the route but is unaffiliated with any 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. 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 Kathmandu?", "answer": "At Kathmandu's Tribhuvan International Airport, the main lounge is the Executive Lounge in the international terminal, accessible after immigration and before the second security check. It is part of the Priority Pass network and also available to American Express Platinum cardholders. The lounge offers premium food, a full bar with spirits, beer, and wine, conference rooms, and a separate smoking area, though Wi-Fi and internet terminals carry an additional fee. It is open daily from 06:00 to 23:00, and guests are limited to two per cardholder. No airline-branded lounges are confirmed at this airport.", "toolsUsed": [], "references": [{"url": "https://www.airports-terminal.com/qatar-airways/qatar-airways-ktm-terminal-tribhuvan-international-airport/", "title": "Qatar Airways KTM Terminal - Tribhuvan International Airport", "time_published": "2024-06-21T00:00:00Z"}, {"url": "https://americanexpress.com/en-gb/travel/lounges/the-platinum-card/KTM/executive-lounge-international-terminal-JFg96vty3o", "title": "Executive Lounge at Tribhuvan International Airport | Amex GB", "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"}, {"url": "https://americanexpress.com/en-xb/travel/lounges/the-platinum-card/KTM/executive-lounge-international-terminal-JFg96vty3o", "title": "Executive Lounge at Tribhuvan International Airport | Amex XB", "time_published": "2026-05-01T00:00:00Z"}, {"url": "https://my.prioritypass.com/en-GB/lounges/nepal/tribhuvan-international", "title": "Tribhuvan International Airport KTM Lounges - KTM Airport Guide and lounges.  | Priority Pass", "time_published": "2024-11-05T00:00:00Z"}, {"url": "https://prioritypass.com/en-GB/lounges/nepal/tribhuvan-international/ktm-executive-lounge", "title": "Executive Lounge KTM AIRPORT International Terminal Kathmandu International | Priority Pass", "time_published": "2024-11-05T00:00:00Z"}]}, "q21": {"question": "What is the baggage allowance on this route from Kathmandu to Washington?", "answer": "Baggage rules on Kathmandu–Washington flights depend on the airline and fare type. Basic economy tickets are restrictive and may not include a checked bag; standard international economy fares typically allow one checked bag and a carry‑on. Premium cabins offer more generous allowances."}, "q22": {"question": "What cabin and seat options are typical from Kathmandu to Washington?", "answer": "On Kathmandu to Washington itineraries, you can expect Economy and flat‑bed Business class; Premium Economy is available on some connecting carriers but not on all flights."}, "q23": {"question": "Are same‑day changes or standby possible on this route?", "answer": "Policies depend on the airline and fare type; flexible and premium fares often allow same‑day changes or standby, but basic economy tickets typically do not."}}}}