{
  "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": "Flight times and distances come 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). The typical flight time is the median scheduled block time across all carriers on the route, computed the same way in both directions so the difference reflects prevailing winds rather than any change in method. Distance is the great-circle distance between the two airports, so the actual flown track is typically 2-5% longer.",
        "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": "Seattle-Tacoma International Airport offers several ground transportation options to downtown Seattle, including taxis, app-based rideshare (Lyft, Uber, Wingz), public transit via bus or Link light rail, rental cars, shared and private door-to-door shuttle vans, airporters, courtesy shuttles, and limos. The Link light rail is generally the fastest and most-used option for reaching the city center, offering frequent service and avoiding highway traffic. Taxis and rideshare provide convenient door-to-door service but are subject to traffic delays, while rental cars give flexibility for exploring beyond Seattle. The official FlySEA app provides real-time transportation information and tips for all these modalities.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.portseattle.org/flySEAapp",
            "title": "FlySEA App | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico"
          },
          {
            "url": "https://www.portseattle.org/sea/ground-transportation/doortodoor",
            "title": "Door to Door Shuttle | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico"
          },
          {
            "url": "https://www.portseattle.org/places/sea-tac-airport",
            "title": "Seattle-Tacoma International Airport (SEA) | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico"
          },
          {
            "url": "https://www.portseattle.org/sea",
            "title": "Seattle-Tacoma International Airport | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico",
            "time_published": "2026-09-10T00:00:00Z"
          },
          {
            "url": "https://www.portseattle.org/sea-tac",
            "title": "Seattle-Tacoma International Airport | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Tokyo to Seattle?",
        "answer": "Average fares from Tokyo to Seattle bottom out around $407 in late January, making that the cheapest stretch to fly. The cheapest months overall are September ($409), October ($421), and January ($422), while the most expensive period is late December, when average fares climb to about $525.",
        "methodology": "Seasonal fares come from Priceline's own air booking-summary archive, analysed in-house and refreshed monthly. For each day of the year we take a representative round-trip fare, a blend of the 25th-percentile and average ticket price over the route's bookings, and smooth the series into a seasonal curve; the half-month low and high and the monthly figures quoted here are averages of that curve. Thin and international routes borrow their seasonal shape from the nearest busy routes, with the price level anchored to the route's own bookings.",
        "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 about 4 to 6 weeks before departure, when fares average around $349. Booking around 30 days ahead can yield the very lowest price at $348, while waiting until the last week or booking more than 4 months out pushes prices above $400 and as high as $534.",
        "methodology": "Booking-window guidance comes from the same monthly in-house analysis of Priceline's own air booking-summary archive. We aggregate the route's bookings by how many days before departure they were made, from about 180 days out to the day of travel, smooth the curve, and highlight the stretch of lead times with the lowest average fare. Thin and international routes borrow the curve shape from the nearest busy routes, anchored to the route's own price level. It reflects current fares and is refreshed monthly.",
        "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 come 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 typical fare is shown for a carrier, it is the median of 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 ways to reach Haneda Airport are the Keikyu Line train or the Tokyo Monorail, both frequent and relatively inexpensive. Airport limousine buses connect many hotels and city hubs directly to the terminals, offering convenience at a slightly higher cost. Taxis and ride-shares are the quickest door-to-door but can be pricey, while driving yourself means paying for airport parking lots, which can get busy during peak travel periods.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.cab.mlit.go.jp/tcab/airport/list/haneda/congestion.html",
            "title": "東京国際空港内道路の混雑緩和について - 国土交通省 東京航空局"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Haneda_Airport_Access_Line",
            "title": "Haneda Airport Access Line",
            "time_published": "2026-07-10T00:59:36Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Haneda%20Airport",
            "title": "Haneda Airport",
            "time_published": "2026-04-27T06:20:30Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Haneda_Airport",
            "title": "Haneda Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-09-12T19:50:14Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Tokyo_International_Airport",
            "title": "Haneda Airport - Wikipedia",
            "time_published": "2026-03-06T08:15:43Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Seattle airport?",
        "answer": "Seattle-Tacoma International Airport has no transit hotels or airside accommodations, so there is no hotel directly connected to the terminal or located past security. The Hilton Seattle Airport & Conference Center is accessible via skybridge, and several nearby hotels like the Radisson and Coast Gateway offer free shuttles from the Courtesy Vehicle Island on the 3rd floor of the parking garage.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.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://ihg.com/holidayinnexpress/hotels/tw/zh/seatac/seaib/hoteldetail",
            "title": "Seattle Airport Hotel | Holiday Inn Express & Suites Seattle-Sea-Tac Airport",
            "favicon": "https://digital.ihg.com/is/image/ihg/app-web-chiclet-holidayinnexpress?fmt=png-alpha"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/seata-fairfield-inn-and-suites-seattle-sea-tac-airport/overview/",
            "title": "Fairfield Inn & Suites Seattle Sea-Tac Airport - Free Shuttle Service",
            "time_published": "2025-02-19T00:00:00Z"
          },
          {
            "url": "https://ihg.com/seattle-washington/hotels-near-seattle-tacoma-international",
            "title": "25 Hotels Near SEA Seattle-Tacoma International (SEA) Airport | IHG",
            "favicon": "https://digital.ihg.com/is/image/ihg/app-web-chiclet-ihg?fmt=png-alpha"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Seattle-Tacoma Intl Airport?",
        "answer": "Seattle-Tacoma International Airport has two Interfaith Prayer and Meditation Rooms, one in the A Concourse and one in the C Concourse, welcoming people of all faiths and beliefs. The airport offers free Wi-Fi as an amenity, including in its lounges such as The Club at SEA locations in Concourses A and S. Information on currency exchange offices is not provided in the available details, so that facet cannot be confirmed.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.portseattle.org/services-amenities/airport-lounges",
            "title": "Lounges at SEA | Port of Seattle",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://www.portseattle.org/places/sea-tac-airport",
            "title": "Seattle-Tacoma International Airport (SEA) | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico"
          },
          {
            "url": "https://www.portseattle.org/page/traveler-updates-and-tips",
            "title": "Travel Tips for SEA Airport | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico"
          },
          {
            "url": "https://www.portseattle.org/sea-tac",
            "title": "Seattle-Tacoma International Airport | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico"
          },
          {
            "url": "https://www.portseattle.org/page/printable-airport-directories",
            "title": "Printable Airport Directories | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico"
          }
        ]
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Tokyo and Seattle airports?",
        "answer": "Tokyo Haneda Airport offers extensive accessibility support, including information desks, airport concierges who patrol terminals to assist travelers with disabilities, and a free shuttle bus between terminals; travelers should contact their airline in advance to arrange wheelchair assistance or other specific needs. Seattle-Tacoma International Airport has a dedicated SEA Access program, sensory rooms, Sunflower lanyards for invisible disabilities, and wheelchair-accessible taxi vans, with the recommendation to request wheelchair assistance from your airline in advance (TSA Cares suggests 72 hours before travel for screening help). Both airports provide family-friendly facilities; SEA has designated family travel spaces and stoma-friendly family restrooms, while Haneda's concierge service and shuttle aid families with children.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.tokyo-airport-bldg.co.jp/en/sustainability/social/relief_and_safety/03/index.html",
            "title": "Facility and Service Information｜Japan Airport Terminal Co., Ltd.",
            "time_published": "2002-01-01T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Haneda_Airport_Terminal_2_Station",
            "title": "Haneda Airport Terminal 2 Station",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-08-24T02:47:22Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Haneda_Airport",
            "title": "Haneda Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-09-12T19:50:14Z"
          },
          {
            "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://en.wikipedia.org/wiki/Tokyo_International_Airport",
            "title": "Haneda Airport - Wikipedia",
            "time_published": "2026-03-06T08:15:43Z"
          },
          {
            "url": "https://www.portseattle.org/SEAaccess",
            "title": "Accessibility at SEA Airport | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico"
          },
          {
            "url": "https://www.portseattle.org/page/accessibility-faqs",
            "title": "Accessibility FAQS | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico"
          },
          {
            "url": "https://www.portseattle.org/page/sea-airport-customer-care-how-get-help-airport",
            "title": "SEA Airport Customer Care: How to Get Help at the Airport | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico"
          },
          {
            "url": "https://www.portseattle.org/SEA26",
            "title": "Let’s Play SEA26 at SEA Airport | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico"
          },
          {
            "url": "https://www.portseattle.org/page/sea-visitor-pass-program",
            "title": "SEA Visitor Pass Program | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Tokyo to Seattle?",
        "answer": "On the nonstop route from Tokyo Haneda to Seattle, Delta typically flies the Airbus A350-900, while ANA (All Nippon Airways) operates the Boeing 787-9. Delta operates the route most frequently with several daily departures, and ANA also serves it daily. Both carriers use widebody aircraft suited to the transpacific distance.",
        "methodology": "Aircraft types come 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). For U.S. routes the type is grounded in the tail number that actually operated the flight; elsewhere it comes from the airline's filed equipment code. Where the source does not commit to a specific variant we name the aircraft family (for example Airbus A320 family) rather than guess, and where no reliable type is on file the aircraft is omitted rather than estimated. Types describe typical scheduled equipment and can vary with seasonal or day-of-week assignments and last-minute swaps.",
        "toolsUsed": [
          "flight_schedule"
        ]
      },
      "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": "Tokyo Haneda offers a wide range of lounges across all three terminals, including the Airport Cafe Lounge NODOKA in Haneda Airport Garden, Power Lounge Premium in Terminal 2, and Sky Lounge South, TIAT Lounge, The Centurion Lounge, and Delta Sky Club in Terminal 3. Terminal 1 has Power Lounge South, Power Lounge North, and Power Lounge Central, while Terminal 2 adds Power Lounge North, Power Lounge Central, and Airport Lounge South. The article lists a total of 12 lounges, with several operating around the clock or during daytime hours.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://my.prioritypass.com/ja-JP/lounges/japan/haneda",
            "title": "Tokyo International Airport HND Lounges - HND Airport Guide and lounges. | Priority Pass",
            "favicon": "https://my.prioritypass.com/icon.png?icon.1k7202wk2zqql.png?dpl=1f82db4e-b1f8-481b-b911-c24ef915cc46",
            "time_published": "2026-08-18T11:40:12Z"
          },
          {
            "url": "https://americanexpress.com/en-xb/travel/lounges/the-platinum-card/HND",
            "title": "American Express Lounges at Tokyo International Airport | Amex XB",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "https://americanexpress.com/en-ca/travel/lounges/the-platinum-card/HND",
            "title": "American Express Lounges at Tokyo International Airport | Amex CA",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "https://www.aa.com/web/i18n/travelInformation/destinationInformation/hnd-airport.html",
            "title": "Tokyo Haneda, Japan (HND)",
            "favicon": "https://www.aa.com/content/images/chrome/rebrand/favicon.png"
          },
          {
            "url": "https://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"
          }
        ]
      },
      "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."
      }
    }
  }
}