{
  "response": {
    "Key": "IAD-ICN",
    "orig": {
      "code": "IAD",
      "type": "airport",
      "city": "Washington",
      "fullCity": "Washington, United States",
      "airport": "Washington Intl Airport"
    },
    "dest": {
      "code": "ICN",
      "type": "airport",
      "city": "Seoul",
      "fullCity": "Seoul, Korea",
      "airport": "Incheon Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Washington to Seoul?",
        "answer": "The flight from Washington Dulles to Seoul Incheon is about 6,940 miles and typically takes 15 hours and 25 minutes nonstop. The return leg is faster at 13 hours and 50 minutes, a difference of about an hour and a half 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 Washington to Seoul?",
        "answer": "Yes, Korean Air and Air Premia fly nonstop from Washington Dulles (IAD) to Seoul Incheon (ICN). Korean Air operates daily with up to four departures a day (around midday), while Air Premia flies four days a week — Mondays, Wednesdays, Fridays, and Sundays — with two midday departures on those days. Both carriers use Boeing 777-300ER aircraft on the route, and the flight takes roughly 15 hours and 25 minutes.",
        "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. 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. 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": [
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          "flight_schedule",
          "route_aircraft",
          "redeye_flights"
        ]
      },
      "q2": {
        "question": "Are there visa requirements to travel from Washington to Seoul?",
        "answer": "For United States nationals traveling from Washington to Seoul, no visa is required for a short tourist visit, with visa-free entry permitted for up to 90 days. However, a Korea Electronic Travel Authorization must be obtained before travel.\n\nThis is general guidance to help you plan, not official immigration advice — entry rules can change and can depend on your nationality and circumstances, so please confirm the current requirements with the relevant embassy or official government source before you travel.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/Visa_policy_of_South_Korea",
            "title": "Visa policy of South Korea",
            "favicon": "https://en.wikipedia.org/static/favicon/wikipedia.ico"
          },
          {
            "url": "https://www.gov.uk/foreign-travel-advice/south-korea/entry-requirements",
            "title": "South Korea entry requirements — GOV.UK",
            "favicon": "https://www.gov.uk/favicon.ico"
          }
        ],
        "preopenedReferences": true,
        "stageOnly": true
      },
      "q3": {
        "question": "What are the ground transportation options in Seoul?",
        "answer": "From Incheon Airport to Seoul, the main options are the Airport Railroad (AREX) train, airport limousine buses, and taxis, with the train and buses being the most popular for their speed and value. The AREX express train is the fastest way to central Seoul, while limousine buses offer direct service to many neighborhoods for 17,000 KRW from Seoul to the airport. Taxis are available with a base fare of 4,800 KRW for Seoul and a 20% surcharge for Seoul-registered cabs, plus a night surcharge of 20–40% between 22:00 and 04:00. Many travelers prefer the Airport Railroad or limousine bus over driving or taxis for convenience. Rental cars are less common for airport-to-city trips given Seoul's extensive public transit.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://airinfo.airport.kr/bbs/ap_en/937/138233/artclView.do?layout=unknown",
            "title": "News",
            "favicon": "https://airinfo.airport.kr/Web-home/og/images/apple-touch-icon.png"
          },
          {
            "url": "https://www.airport.kr/ap_en/1514/subview.do",
            "title": "International Incheon Airport"
          },
          {
            "url": "https://airport.kr/ap_en/6636/subview.do?enc=Zm5jdDF8QEB8JTJGYmJzJTJGYXBfZW4lMkY5MzclMkYxMzgyMzMlMkZhcnRjbFZpZXcuZG8lM0Y=",
            "title": "News",
            "favicon": "https://airport.kr/Web-home/og/images/apple-touch-icon.png"
          }
        ]
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Washington to Seoul?",
        "answer": "There are no nonstop red-eye flights from Washington Dulles to Seoul Incheon, but connecting itineraries whose long leg is an overnight red-eye are available. For example, United offers a connection via San Francisco where the SFO–ICN leg departs at 11:55 PM and arrives at 4:20 AM (early hours), and Asiana offers similar overnight legs via San Francisco (departing 11:20 PM, arriving 4:05 AM) or Los Angeles (departing 11:00 PM, arriving 4:00 AM).",
        "methodology": "Red-eye flights are identified from scheduled local departure and arrival times in our flight-schedule database — built from published airline timetables and official schedule data, including U.S. Department of Transportation records for domestic routes — flagging services that depart late at night and arrive the following morning; for connecting itineraries the red-eye is based on the timing of the overnight long-haul leg.",
        "toolsUsed": [
          "redeye_flights"
        ]
      },
      "q7": {
        "question": "Which airlines usually operate this route from Washington to Seoul?",
        "answer": "Korean Air and Air Premia both fly nonstop from Washington Dulles to Seoul Incheon. Korean Air operates up to 28 weekly flights with departures around midday, and the typical fare on this route is approximately $1,584. Air Premia adds 8 weekly flights on Mondays, Wednesdays, Fridays, and Sundays, also departing around midday.",
        "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 Washington and Seoul?",
        "answer": "Common layover cities include Tokyo (Narita or Haneda), Seoul (Incheon, if connecting from another Asian city), San Francisco, and Vancouver. Tokyo offers efficient transfers and broad connections to ICN. San Francisco provides a logical West Coast gateway with multiple daily flights. Vancouver is a compact, efficient hub with US preclearance on the return, and transit without a Canadian visa is possible for many nationalities."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Seoul?",
        "answer": "April to June and September to October offer mild temperatures, low rainfall, and smaller crowds than peak summer."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Washington to Seoul?",
        "answer": "Bring a passport valid for at least six months, a K‑ETA or visa, proof of onward or return travel, and a payment method for baggage and any required health documents."
      },
      "q12": {
        "question": "Which airport should I use in Seoul?",
        "answer": "Incheon is Seoul's main international airport, handling virtually all long‑haul flights. Gimpo serves domestic and a few regional routes and is closer to the city centre."
      },
      "q13": {
        "question": "How do I get to Washington Intl Airport from the city center?",
        "answer": "From downtown Washington, the fastest public transit option is the Metro's Silver Line, which goes directly to Dulles and connects to the terminal via an indoor pedestrian tunnel with moving sidewalks. Ride-share services like Uber and Lyft, as well as taxis, offer door-to-door convenience and are generally quicker but more expensive than the train, especially during peak traffic. Driving is also possible, with on-site parking garages connected to the terminal, but parking can be pricey and is best for longer trips.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.flydulles.com/parking-transportation",
            "title": "flydulles.com - Parking & Transportation",
            "favicon": "https://www.flydulles.com/themes/custom/mwaa_barrio/favicon.ico"
          },
          {
            "url": "https://www.flydulles.com/metro",
            "title": "flydulles.com - Dulles Airport Metrorail Station",
            "favicon": "https://www.flydulles.com/themes/custom/mwaa_barrio/favicon.ico"
          },
          {
            "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"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Dulles_International_Airport",
            "title": "Dulles International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-09-18T13:47:09Z"
          },
          {
            "url": "https://flydulles.com/shopping-dining",
            "title": "flydulles.com - Shopping & Dining",
            "favicon": "https://flydulles.com/themes/custom/mwaa_barrio/favicon.ico"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Seoul airport?",
        "answer": "Seoul Incheon Airport has several on-site sleeping options, including the Incheon Airport Transit Hotel in Terminal 1 on the 4th floor near Gate 11 and another location in Terminal 2 opposite Gate 251. Both transit hotels are airside and cater to travelers transiting between international flights, with rooms available in six-hour blocks. There are also Darakhyu capsule hotels in the public areas of both terminals, offering budget stays with a minimum of three hours.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.walkerhill.com/transithotel/en/t1/about/Introduction.jsp",
            "title": "Incheon Airport Transit Hotel",
            "time_published": "2022-06-13T00:00:00Z"
          },
          {
            "url": "https://sleepinginairports.net/guides/seoul-incheon-airport-guide.htm",
            "title": "Seoul Incheon Airport Guide (ICN) - 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": "2018-10-02T00:00:42Z"
          },
          {
            "url": "https://www.walkerhill.com/transithotel/en/t2/about/Introduction.jsp",
            "title": "Incheon Airport Transit Hotel",
            "time_published": "2022-06-13T00:00:00Z"
          },
          {
            "url": "https://www.walkerhill.com/transithotel/",
            "title": "Incheon Airport Transit Hotel",
            "favicon": "https://www.walkerhill.com/assets/favicon/transithotel/apple-icon.png"
          },
          {
            "url": "https://www.walkerhill.com/transithotel/jp/t1/about/Introduction.jsp",
            "title": "Incheon Airport Transit Hotel",
            "time_published": "2022-06-13T00:00:00Z"
          },
          {
            "url": "https://www.walkerhill.com/transithotel/kr/t1/about/Introduction.jsp",
            "title": "Incheon Airport Transit Hotel",
            "time_published": "2024-12-15T00:00:00Z"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Incheon Intl Airport?",
        "answer": "Incheon International Airport offers free Wi-Fi throughout both passenger terminals, and currency exchange offices are available in the arrival and departure areas of Terminal 1 and Terminal 2. Prayer rooms are provided for passengers in both terminals, located near the transfer lounges and in the public areas. These facilities ensure travelers from Washington can handle money, connect online, and observe religious practices comfortably during their journey.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://airport.kr/ap_en/1562/subview.do",
            "title": "International Incheon Airport"
          },
          {
            "url": "https://airport.kr/ap_en/6636/subview.do?enc=Zm5jdDF8QEB8JTJGYmJzJTJGYXBfZW4lMkY5MzclMkYxMzgxNjUlMkZhcnRjbFZpZXcuZG8lM0Y=",
            "title": "News",
            "favicon": "https://airport.kr/Web-home/og/images/apple-touch-icon.png"
          }
        ]
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Washington and Seoul airports?",
        "answer": "Washington Dulles offers wheelchair assistance arranged through your airline at the airport, accessible shuttle buses with lifts and audible announcements, a Hidden Disabilities Sunflower Program (lanyards available from the USO Lounge or information desks), and designated accessible parking. Incheon operates priority lanes for the mobility impaired, elderly, young children, pregnant women, and persons with disabilities, plus free wheelchair/electric vehicle transport by contacting the help desk at 1577-2600 or reserving in advance; designated drop-off zones and disabled parking are also provided. To arrange assistance at either airport, contact your airline at least 48 hours before departure, though Incheon's free transport service recommends weekday reservations in advance.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.flydulles.com/iad/disability-services",
            "title": "flydulles.com - Disability Services",
            "favicon": "https://www.flydulles.com/themes/custom/mwaa_barrio/favicon.ico"
          },
          {
            "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"
          },
          {
            "url": "https://www.mwaa.com/",
            "title": "Official Website of Metropolitan Washington Airports Authority - MWAA",
            "favicon": "https://www.mwaa.com/themes/custom/mwaa_barrio/favicon.ico",
            "time_published": "2026-08-26T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Dulles_International_Airport",
            "title": "Dulles International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-09-18T13:47:09Z"
          },
          {
            "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"
          },
          {
            "url": "https://airport.kr/ap_en/1435/subview.do",
            "title": "International Incheon Airport",
            "favicon": "https://airport.kr/Web-home/og/images/apple-touch-icon.png"
          },
          {
            "url": "https://airport.kr/ap_en/1562/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"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Washington to Seoul?",
        "answer": "Korean Air flies nonstop from Washington to Seoul using the Boeing 777-300ER, while Air Premia operates the route with the Boeing 787-9. Korean Air runs daily service and Air Premia flies four days a week, making Korean Air the dominant carrier on this route.",
        "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 Washington to Seoul?",
        "answer": "Korean Air (SkyTeam) and Air Premia fly nonstop from Washington Dulles to Seoul Incheon. Korean Air brings SkyTeam alliance connectivity, while Air Premia is an independent carrier with no global alliance affiliation. Other alliances may serve the route through one-stop itineraries.",
        "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",
          "article_lookup"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Washington?",
        "answer": "When departing from Washington Dulles, the Etihad Lounge and the Air France-KLM Lounge in Concourse A are solid options, as are the Virgin Atlantic Clubhouse and Turkish Airlines Lounge, with the latter located in Concourse B. The Capital One Lounge near the TSA PreCheck checkpoint is currently operating on a limited-service model with grab-and-go food and a full-service coffee bar, though seating and other amenities are temporarily unavailable. The Lufthansa Business and Senator lounges in Concourse B are temporarily closed.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://prioritypass.com/lounges/united-states-of-america/washington-dulles-international",
            "title": "Washington Dulles International Airport IAD Lounges - IAD Airport Guide and lounges. | Priority Pass",
            "favicon": "https://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-us/travel/lounges/the-platinum-card/IAD",
            "title": "American Express Lounges at Washington Dulles International Airport | Amex US",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://flydulles.com/travel-information/services-amenities/airport-lounges/capital-one-lounge-iad",
            "title": "Capital One Lounge - IAD | flydulles.com",
            "favicon": "https://flydulles.com/themes/custom/mwaa_barrio/favicon.ico"
          },
          {
            "url": "https://my.prioritypass.com/en-GB/lounges/united-states-of-america/washington-dulles-international",
            "title": "Washington Dulles International Airport IAD Lounges - IAD Airport Guide and lounges. | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://united.com/en/ca/fly/travel/airport/iad-map.html",
            "title": "Dulles International Airport Map | United Airlines",
            "favicon": "https://united.com/icons/icon-72x72.png"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Washington to Seoul?",
        "answer": "Baggage allowance on Washington–Seoul flights depends on the airline and fare class. Basic Economy often excludes checked luggage, while standard international economy usually includes one checked bag and a carry-on. Premium cabins and higher fares provide more generous allowances."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Washington to Seoul?",
        "answer": "Flights from Washington Dulles to Seoul Incheon typically offer Economy, Premium Economy, and flat-bed Business class on Korean Air and Asiana, with United also providing Economy and flat-bed Polaris Business."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies differ by airline and fare class; flexible economy and premium cabins typically allow same‑day changes or standby, while Basic Economy usually does not."
      }
    }
  }
}