{"response": {"Key": "HND-SEA", "orig": {"code": "HND", "type": "airport", "city": "Tokyo", "fullCity": "Tokyo, Japan", "airport": "Haneda Intl Airport"}, "dest": {"code": "SEA", "type": "airport", "city": "Seattle", "fullCity": "Seattle, Washington", "airport": "Seattle-Tacoma Intl Airport"}, "faq": {"q0": {"question": "What is the typical flight duration from Tokyo to Seattle?", "answer": "The flight from Tokyo to Seattle is about 4,790 miles and typically takes 9 hours and 11 minutes nonstop. The return leg from Seattle to Tokyo is longer, averaging 10 hours and 35 minutes, due to prevailing winds.", "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"]}, "q1": {"question": "Are there any direct flights from Tokyo to Seattle?", "answer": "Yes, Delta and ANA both fly nonstop from Tokyo Haneda to Seattle. Delta operates three daily flights (21 per week), while ANA runs one daily flight; both airlines serve the route every day of the week. The flight takes about 9 hours and 10 minutes eastbound, with Delta departures around 4:05–4:50 PM and ANA's departure at 9:15 PM.", "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, 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": ["route_airlines", "flight_schedule"]}, "q3": {"question": "What are the ground transportation options in Seattle?", "answer": "From Seattle-Tacoma International Airport (SEA), the Link light rail is the most-used option to reach downtown Seattle, taking about 40 minutes to Westlake Station. Taxis and rideshares like Uber and Lyft are also available, picking up on the third floor of the parking garage, and offer a direct 30-to-45-minute drive depending on traffic. Car rentals are located at an off-site facility served by a free 24-hour shuttle. The light rail is generally the fastest and most reliable way to avoid traffic, while taxis and rideshares provide door-to-door convenience.", "toolsUsed": [], "references": [{"url": "https://www.portseattle.org/blog/smooth-sailing-guide-between-sea-airport-and-seattle-cruise-terminals", "title": "Smooth Sailing Guide between SEA Airport and the Seattle Cruise Terminals | Port of Seattle", "time_published": "2025-05-05T00:00:00Z"}, {"url": "https://www.portseattle.org/blog/wander-while-you-wait-exploring-beyond-sea", "title": "Wander While You Wait — Exploring Beyond SEA | Port of Seattle", "time_published": "2025-08-18T00:00:00Z"}, {"url": "https://en.wikipedia.org/wiki/SeaTac_Airport", "title": "Seattle–Tacoma International Airport - Wikipedia", "time_published": "2003-07-10T00:00:00Z"}, {"url": "https://en.wikipedia.org/wiki/Seattle%E2%80%93Tacoma%20International%20Airport", "title": "Seattle–Tacoma International Airport", "time_published": "2026-04-29T19:20:41Z"}, {"url": "http://www.portseattle.org/exploremore?page=1&tid=125", "title": "Explore More List | Port of Seattle", "time_published": "2000-01-01T00:00:00Z"}]}, "q4": {"question": "When is the cheapest time to fly from Tokyo to Seattle?", "answer": "The cheapest months to fly from Tokyo to Seattle are February and September, with average fares around $953, followed by April at $958. The most expensive months are June, averaging $1,278, and December, averaging $1,230.", "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 Tokyo to Seattle?", "answer": "For flights from Tokyo to Seattle, the optimal booking window is roughly 23 to 26 weeks before departure, when average fares drop to about $1,034. Booking right around 175 days out can yield the lowest single price near $1,020, while last-minute purchases tend to cost over $1,300. For summer or holiday travel, it's wise to book even earlier — extending that window by several weeks — since peak demand often pushes the best prices further out.", "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 Tokyo to Seattle?", "answer": "No overnight (red-eye) flights are available on the Tokyo Haneda to Seattle route — neither nonstop red-eyes nor connecting itineraries whose long leg is a red-eye operate on this city pair.", "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 Tokyo to Seattle?", "answer": "Delta and All Nippon Airways (ANA) both operate nonstop flights from Tokyo Haneda to Seattle. Delta runs three daily departures, totaling 21 weekly flights, with a typical fare around $1,749. ANA offers one daily flight, seven weekly, with a median fare near $2,139. Both carriers serve the route year-round.", "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 Tokyo and Seattle?", "answer": "Common layovers include Seoul, Vancouver, San Francisco and Los Angeles, offering broad connections and efficient transfers with visa‑free transit options for eligible nationalities."}, "q10": {"question": "Which months have the best weather for traveling to Seattle?", "answer": "July through September offers warm, dry weather and fewer rainy days."}, "q11": {"question": "What documents should I bring with me to the airport when flying from Tokyo to Seattle?", "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, and any required vaccination certificates."}, "q12": {"question": "Which airport should I use in Seattle?", "answer": "Seattle-Tacoma International Airport is the primary commercial airport serving Seattle. It is about 14 miles south of downtown and handles all major domestic and international flights. There is no other commercial airport in the immediate Seattle area."}, "q13": {"question": "How do I get to Haneda Intl Airport from the city center?", "answer": "From central Tokyo, the fastest and most popular way to Haneda Airport is the Keikyu Line train, which reaches the terminals in as little as 13 minutes from Shinagawa Station. Airport limousine buses serve major hotels and stations, offering a comfortable ride with luggage assistance, though they take longer and are subject to traffic. Taxis and ride‑share services provide door‑to‑door convenience but are the most expensive option, while driving yourself is possible but parking fees add up quickly.", "toolsUsed": [], "references": [{"url": "https://en.wikipedia.org/wiki/Haneda%20Airport", "title": "Haneda Airport", "time_published": "2026-04-27T06:20:30Z"}, {"url": "http://www.mlit.go.jp/koku/15_hf_000051.html", "title": "Tokyo International (Haneda) Airport - MLIT Japan"}, {"url": "https://en.wikipedia.org/wiki/Haneda%20Route", "title": "Haneda Route", "time_published": "2025-08-02T01:46:55Z"}, {"url": "https://www.mlit.go.jp/en/report/press/kouku07_hh_000001.html", "title": "Press Release：Revision of Domestic Passenger Service Facility Charge（PSFC）at Tokyo Int’l Airport(HANEDA) - MLIT Ministry of Land, Infrastructure, Transport and Tourism", "time_published": "2014-01-07T00:00:00Z"}, {"url": "https://www.tokyo-airport-bldg.co.jp/en/", "title": "Japan Airport Terminal Co., Ltd.", "favicon": "https://www.tokyo-airport-bldg.co.jp/site_resource/common/img/000013562.png", "time_published": "2026-06-23T00:00:00Z"}]}, "q14": {"question": "Are there hotels or sleeping facilities at Seattle airport?", "answer": "Seattle-Tacoma International Airport does not have on-site hotels, capsule hotels, or sleeping pods inside the terminals. Nearby hotels like the Seattle Airport Marriott and Residence Inn Seattle Sea-Tac Airport are connected by complimentary shuttle service and located just a short ride from the airport.", "toolsUsed": [], "references": [{"url": "https://sleepinginairports.net/guides/seattle-airport-guide.htm", "title": "Seattle Airport Guide (SEA) - 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": "2018-08-08T19:18:01Z"}, {"url": "https://www.marriott.com/en-us/hotels/seara-residence-inn-seattle-sea-tac-airport/overview/?scid=f2ae0541-1279-4f24-b197-a979c79310b0", "title": "Airport Shuttle & Near SEA | Residence Inn Seattle Sea-Tac Airport", "time_published": "2025-02-19T00:00:00Z"}, {"url": "http://www.portseattle.org/Sea-Tac/Pages/default.aspx", "title": "Seattle-Tacoma International Airport | Port of Seattle", "time_published": "2026-04-18T00:00:00Z"}, {"url": "https://www.marriott.com/en-us/hotels/seawa-seattle-airport-marriott/overview/?gclid=Cj0KCQjw0PWRBhDKARIsAPKHFGhmUt2mC-WobK99kCuOjPMPOWiTky6Ue8-pBic_4rzWZjScsYnFkwcaAtlOEALw_wcB&gclsrc=aw.ds", "title": "Hotel close to SeaTac | Seattle Airport Marriott", "time_published": "2023-08-11T00:00:00Z"}, {"url": "https://en.wikipedia.org/wiki/Seattle%E2%80%93Tacoma%20International%20Airport", "title": "Seattle–Tacoma International Airport", "time_published": "2026-04-29T19:20:41Z"}, {"url": "https://www.marriott.com/en-us/hotels/seara-residence-inn-seattle-sea-tac-airport/overview/", "title": "Hotel near Sea-Tac Airport | Residence Inn by Marriott", "time_published": "2024-10-11T00:00:00Z"}]}, "q17": {"question": "What aircraft are typically used on flights from Tokyo to Seattle?", "answer": "On the nonstop route from Tokyo Haneda to Seattle, the two regularly scheduled aircraft are the Boeing 787-9 (operated by JAL) and the Airbus A330-200 (operated by Alaska Airlines). When connecting, the long-haul leg most often uses the Boeing 787-9, Boeing 777, or Airbus A330/A350 family, depending on the airline and hub. The exact aircraft can vary by day and rotation, but these widebody types dominate the route; Wi‑Fi and seatback entertainment are widely available on these aircraft.", "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 Tokyo to Seattle?", "answer": "Delta (SkyTeam) and ANA (Star Alliance) fly nonstop from Tokyo Haneda to Seattle. Delta operates up to three daily departures with typical fares around $1,749, while ANA runs one daily flight with typical fares around $2,139. Both carriers belong to an alliance, so no major unaligned airline serves this route nonstop.", "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 Tokyo?", "answer": "At Tokyo Haneda Airport, Terminal 3 offers several airline-branded lounges, including the Delta Sky Club and the JAL Sakura Lounge, which are accessible to business-class passengers and eligible elite members on those airlines or their partners. The Centurion Lounge in Terminal 3 is available to American Express Platinum and Centurion cardholders, featuring a full bar and locally inspired cuisine. Priority Pass members can access the Sky Lounge South and the TIAT Lounge in Terminal 3, or the Power Lounge Premium in Terminal 2, which offers showers and premium food. The Emirates lounge is also available for first and business class passengers flying Emirates, though it is operated as the JAL Sakura Lounge. Access policies vary, so check your specific ticket or membership before visiting.", "toolsUsed": [], "references": [{"url": "https://www.prioritypass.com/ja-JP/lounges/japan/haneda", "title": "Tokyo International Airport HND Lounges - HND Airport Guide and lounges. | Priority Pass", "time_published": "2024-11-05T00:00:00Z"}, {"url": "https://my.prioritypass.com/en-GB/lounges/japan/haneda", "title": "Tokyo International Airport HND Lounges - HND Airport Guide and lounges.  | Priority Pass", "time_published": "2024-11-05T00:00:00Z"}, {"url": "https://americanexpress.com/en-hk/travel/lounges/the-platinum-card/HND", "title": "American Express Lounges at Tokyo International Airport | Amex HK", "time_published": "2026-01-01T00:00:00Z"}, {"url": "https://emirates.com/english/destinations/flights-to-tokyo-haneda", "title": "Flights to Tokyo Haneda (HND) | Where we fly | Emirates", "time_published": "2025-05-13T00:00:00Z"}, {"url": "https://www.americanexpress.com/en-us/travel/lounges/the-centurion-card-idc-en/HND/Power-Lounge-Premium-Terminal-2-KwhPoM22Lg/", "title": "Power Lounge Premium at Tokyo International Airport | Amex US", "time_published": "2026-03-18T00:00:00Z"}]}, "q21": {"question": "What is the baggage allowance on this route from Tokyo to Seattle?", "answer": "On flights from Tokyo to Seattle, baggage rules depend on the airline and fare type. Basic economy tickets often do not include a checked bag, while standard economy usually provides one free checked bag and a carry‑on. Premium cabins and higher fares typically offer more generous allowances."}, "q22": {"question": "What cabin and seat options are typical from Tokyo to Seattle?", "answer": "On flights from Tokyo to Seattle, you can typically choose Economy, Premium Economy, and flat-bed Business class, with First class available on select airlines."}, "q23": {"question": "Are same‑day changes or standby possible on this route?", "answer": "Same‑day changes and standby depend on the airline and fare; premium cabins and flexible tickets typically allow them, while basic economy does not."}}}}