{
  "response": {
    "Key": "ICN-SEA",
    "orig": {
      "code": "ICN",
      "type": "airport",
      "city": "Seoul",
      "fullCity": "Seoul, Korea",
      "airport": "Incheon 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 Seoul to Seattle?",
        "answer": "A nonstop flight from Seoul (ICN) to Seattle (SEA) typically takes about 10 hours 30 minutes to 11 hours, with westbound flights sometimes slightly faster due to jet stream effects. With one stop, total travel time often ranges from 13 to 16 hours depending on the layover city. Return flights from Seattle to Seoul are generally similar in duration, averaging around 11 to 11 hours 30 minutes."
      },
      "q1": {
        "question": "Are there any direct flights from Seoul to Seattle?",
        "answer": "Yes, nonstop flights from Seoul (ICN) to Seattle (SEA) are available daily on Korean Air, Delta, and Asiana, with Alaska Airlines and Hawaiian also operating nonstops six days a week (all days except Tuesday). Together they offer about 53 weekly nonstop flights, with departures spread from mid-afternoon through late evening. Korean Air and Delta each run two daily flights, while Asiana operates one daily and Alaska and Hawaiian run one each on their operating days.",
        "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"
        ]
      },
      "q2": {
        "question": "Are there visa requirements to travel from Seoul to Seattle?",
        "answer": "Yes — travelers from Seoul to Seattle must meet U.S. entry requirements. South Korean citizens can visit the U.S. visa‑free for tourism or business for up to 90 days under the Visa Waiver Program, but they must obtain an approved ESTA before departure. U.S. citizens do not need a visa to enter South Korea for short stays (up to 90 days for tourism). For the return from Seattle to Seoul, South Korea currently requires most foreign nationals, including U.S. citizens, to have a valid K‑ETA before travel. Always verify current requirements before booking, as policies can change."
      },
      "q3": {
        "question": "What are the ground transportation options in Seattle?",
        "answer": "From Seattle-Tacoma International Airport (SEA), the Link light rail is the most popular way to reach downtown: trains run every 8–15 minutes and take about 40 minutes to Westlake Station for a flat fare of around $3. Rideshare services like Uber and Lyft pick up on the third floor of the parking garage, while taxis are available on the north and south curbs of that same level; both take 30–45 minutes depending on traffic. Rental cars are housed in an off-site facility reached by a free 24/7 shuttle, and several public bus routes stop near the light rail station. The light rail is the most-used option thanks to its reliability and low cost, while a taxi or rideshare is fastest outside peak congestion.",
        "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 Seoul to Seattle?",
        "answer": "The cheapest months to fly from Seoul to Seattle are September (around $989), October ($1013), and April ($1040), while December ($1376), June ($1345), and May ($1195) are the most expensive.",
        "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 Seoul to Seattle?",
        "answer": "For Seoul to Seattle, the best fares are typically found when booking 5 to 8 weeks before departure, with the absolute cheapest window around 45 days out. During peak summer and holiday periods, demand pushes prices higher, so booking a few weeks earlier than the usual window can help lock in a better rate.",
        "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 Seoul to Seattle?",
        "answer": "No overnight (red-eye) flights operate from Seoul (ICN) to Seattle (SEA) — neither nonstop nor connecting itineraries with a red-eye long leg are available on this route.",
        "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"
        ]
      },
      "q8": {
        "question": "If I need a connection, what are common layover cities between Seoul and Seattle?",
        "answer": "Common hubs include Tokyo (NRT/HND), Vancouver (YVR), San Francisco (SFO), and Los Angeles (LAX). Tokyo offers efficient connections and visa-free transit for many nationalities. Vancouver provides a shorter final leg and US preclearance. San Francisco and Los Angeles are major West Coast gateways with frequent onward flights to Seattle, keeping overall travel time competitive."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Seoul to Seattle?",
        "answer": "On‑time performance is generally reliable, though afternoon departures can experience minor delays due to air traffic. Early flights, particularly on Korean Air and Delta, tend to have the best punctuality."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Seattle?",
        "answer": "July and August have the sunniest, warmest weather, but late spring (May to June) and early fall (September) offer pleasant temperatures with fewer tourists."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Seoul to Seattle?",
        "answer": "Bring a passport valid for at least six months, your U.S. visa or ESTA, 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, located about 14 miles south of downtown. It is a hub for Alaska Airlines and Delta Air Lines, offering extensive domestic and international connections, and is the only airport with scheduled passenger service for the city."
      },
      "q13": {
        "question": "How do I get to Incheon Intl Airport from the city center?",
        "answer": "The quickest and most popular way to reach Incheon Airport from downtown Seoul is the AREX express train, which takes about 43 minutes nonstop from Seoul Station. More economical commuter trains on the same line stop at several city stations but take longer. Deluxe airport limousine buses offer comfortable, direct service from major hotels and districts like Gangnam and Myeongdong, while standard taxis and ride‑share apps provide door‑to‑door convenience at a higher price. Driving yourself is possible, with both short‑term and long‑term parking available at the airport.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://airport.kr/bbs/ap_en/937/138233/artclView.do",
            "title": "K2Web Wizard",
            "time_published": "2024-10-16T00:00:00Z"
          },
          {
            "url": "https://www.airport.kr/ap_en/1507/subview.do",
            "title": "International Incheon Airport"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transportation_in_Seoul",
            "title": "Transportation in Seoul",
            "time_published": "2025-09-22T07:17:16Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Incheon%20International%20Airport%20Terminal%201%20station",
            "title": "Incheon International Airport Terminal 1 station",
            "time_published": "2026-03-08T09:10:35Z"
          },
          {
            "url": "https://airport.kr/ap_en/6604/subview.do",
            "title": "International Incheon Airport"
          }
        ]
      },
      "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. However, several nearby hotels like the Seattle Airport Marriott and Residence Inn by Marriott are connected by complimentary shuttle service and located less than a mile away.",
        "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"
          }
        ]
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Seoul and Seattle airports?",
        "answer": "At Incheon Airport (ICN), travelers with disabilities, the elderly (70+), young children under 7, and pregnant women can use dedicated priority lanes; on-site assistance includes free wheelchair transport and electric vehicle rides between parking areas and terminals, with reservations recommended on weekdays by calling +82-32-741-3217. Seattle-Tacoma International Airport (SEA) offers wheelchair services arranged through airlines (with 48 hours’ notice recommended) and accessible taxi vans via SP Plus at (206) 708-6504, while the SEA Access program provides sensory rooms, all-gender restrooms, and a sunflower lanyard program for invisible disabilities. Both airports offer children’s play areas—ICN has dedicated zones in each terminal, and SEA features a play area in the central terminal as well as nursing suites.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://www.airport.kr/ap_en/1435/subview.do",
            "title": "International Incheon Airport"
          },
          {
            "url": "https://airport.kr/ap_en/1478/subview.do",
            "title": "International Incheon Airport",
            "favicon": "https://airport.kr/Web-home/og/images/apple-touch-icon.png"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Incheon_International_Airport_Corporation",
            "title": "Incheon International Airport Corporation",
            "time_published": "2026-06-15T21:57:36Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Incheon_International_Airport_Terminal_2_station",
            "title": "Incheon International Airport Terminal 2 station",
            "time_published": "2026-07-03T06:56:11Z"
          },
          {
            "url": "https://airport.kr/ap_en/1562/subview.do",
            "title": "International Incheon Airport"
          },
          {
            "url": "https://www.portseattle.org/page/accessibility-faqs",
            "title": "Accessibility FAQS | Port of Seattle",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "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://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_Tacoma_International_Airport",
            "title": "Seattle–Tacoma International Airport - Wikipedia",
            "time_published": "2003-07-10T00:00:00Z"
          },
          {
            "url": "https://www.portseattle.org/news/sea-access-launches-create-most-accessible-airport",
            "title": "SEA Access Launches to Create Most Accessible Airport | Port of Seattle",
            "favicon": "https://www.portseattle.org/sites/default/files/favicon.ico",
            "time_published": "2023-11-15T00:00:00Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Seoul to Seattle?",
        "answer": "The most common aircraft on the nonstop Seoul–Seattle route are the Boeing 777-200LR (operated by Asiana) and the Boeing 787-9 (operated by Alaska Airlines), though the exact type can vary by day and airline. On one-stop itineraries the long transpacific leg is typically a Boeing 787-9, Boeing 787-10, or Airbus A350-900, connecting through hubs like Vancouver, San Francisco, Taipei, or Tokyo with regional jets or narrowbodies on the shorter leg. Wi‑Fi and seatback entertainment are widely available on these long‑haul aircraft, but specifics differ by carrier.",
        "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 Seoul to Seattle?",
        "answer": "SkyTeam is represented by Korean Air and Delta, Star Alliance by Asiana, and oneworld by Alaska Airlines on nonstop Seoul–Seattle flights. Hawaiian Airlines also flies the route nonstop but belongs to no global 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 Seoul?",
        "answer": "Incheon Airport Terminal 1 has three Asiana Business Class Lounges (East, Central, West) for Asiana business/first passengers and Star Alliance Gold members, each offering showers, hot meals, and runway views. The same terminal holds two MATINA Lounges (East near Gate 11, West near Gate 43) and two Sky Hub Lounges (East, West), all accessible via Priority Pass, LoungeKey, or day pass and featuring a la carte Korean dishes, noodle bars, and shower suites. Terminal 2 houses a large Sky Hub Lounge (open 6:00 AM–10:00 PM) and a MATINA Lounge, both with similar access and amenities including a self-service bar and quiet rest areas. Delta Sky Club is not available at ICN, but Delta business/first and SkyTeam Elite Plus passengers can use the Korean Air Prestige Class Lounge in Terminal 2.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/ICN",
            "title": "American Express Lounges at Seoul Incheon International Airport | Amex US",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "https://my.prioritypass.com/en-GB/lounges/south-korea/incheon-international",
            "title": "Incheon International Airport ICN Lounges - ICN Airport Guide and lounges. | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://www.delta.com/us/en/airports/asia/seoul-sky-club-airport-map",
            "title": "Seoul Incheon (ICN) Airport Map & Lounges | Delta Air Lines",
            "time_published": "2023-01-01T00:00:00Z"
          },
          {
            "url": "https://americanexpress.com/en-th/travel/lounges/the-platinum-card/ICN",
            "title": "American Express Lounges at Seoul Incheon International Airport | Amex TH",
            "time_published": "2026-05-03T00:00:00Z"
          },
          {
            "url": "https://my.prioritypass.com:443/en-GB/lounges/south-korea/incheon-international/icn10-sky-hub-lounge",
            "title": "Sky Hub Lounge ICN AIRPORT Terminal 1 Concourse Seoul Incheon Intl | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Seoul to Seattle?",
        "answer": "Baggage allowance on Seoul–Seattle flights depends on the airline and fare type. Basic economy fares are often restrictive and may not include a checked bag, while standard international economy typically includes one free checked bag. Carry‑on luggage is generally allowed, but size and weight limits vary by carrier."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Seoul to Seattle?",
        "answer": "Flights from Seoul to Seattle typically offer Economy, Premium Economy, and flat-bed Business class; First class is not common on this route."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies differ by airline and fare; flexible and higher cabins often permit same‑day changes or standby, while restrictive tickets rarely do."
      }
    }
  }
}