{
  "response": {
    "Key": "HAN-SEL",
    "orig": {
      "code": "HAN",
      "type": "airport",
      "city": "Hanoi",
      "fullCity": "Hanoi, Vietnam",
      "airport": "Noi Bai Intl Airport"
    },
    "dest": {
      "code": "SEL",
      "type": "airport",
      "city": "Seoul",
      "fullCity": "Seoul, Korea",
      "airport": "Incheon Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Hanoi to Seoul?",
        "answer": "A nonstop flight from Hanoi (HAN) to Seoul (ICN) typically takes about 4 hours 15–30 minutes. The return flight from Seoul to Hanoi is often slightly shorter, around 4 hours 10–20 minutes, due to prevailing winds. With one stop, total travel time usually ranges from 7 to 9 hours depending on the layover city."
      },
      "q1": {
        "question": "Are there any direct flights from Hanoi to Seoul?",
        "answer": "Yes, there are plenty of nonstop flights from Hanoi (HAN) to Seoul Incheon (ICN). Five airlines operate the route — VietJet Air, Vietnam Airlines, Korean Air, Asiana Airlines, and Jeju Air — with a combined 120 weekly departures, all running daily. Flights depart throughout the day, from early morning red-eyes around 12:45 AM to late-night options near 11:50 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 and weekly frequencies are summarized 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). Where available, on-time and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, and typical fares from the U.S. DOT Airline Origin and Destination Survey (DB1B), a quarterly 10% sample of tickets sold.",
        "toolsUsed": [
          "route_airlines",
          "flight_schedule"
        ]
      },
      "q2": {
        "question": "Are there visa requirements to travel from Hanoi to Seoul?",
        "answer": "Yes, visa requirements apply for travel from Hanoi to Seoul depending on nationality. Vietnamese citizens traveling to South Korea for tourism or short visits must obtain a Korea Electronic Travel Authorization (K-ETA) before departure, as Vietnam is not part of South Korea's visa waiver program. South Korean citizens visiting Vietnam for stays up to 45 days are visa-exempt as of August 2023, but longer stays or other purposes require a visa. Nationals of other countries should check specific requirements for both directions."
      },
      "q3": {
        "question": "What are the ground transportation options in Seoul?",
        "answer": "From Incheon Airport, the AREX express train is the fastest way to Seoul Station, taking about 43 minutes. The all-stop commuter train is a cheaper rail option, while airport limousine buses serve many city districts directly. Taxis and ride-hailing apps are available but cost more and can be slower in traffic. Car rentals are possible but rarely the best choice for central Seoul. The AREX train is the most-used transfer overall.",
        "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"
          }
        ]
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Hanoi to Seoul?",
        "answer": "Yes, overnight red‑eye flights from Hanoi (HAN) to Seoul (ICN) operate daily on Vietnam Airlines, Korean Air, Asiana, and VietJet, with departures clustering between roughly 10:50 PM and 11:50 PM. These flights land in Seoul in the early morning hours the next day.",
        "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 Hanoi to Seoul?",
        "answer": "VietJet Air, Vietnam Airlines, Korean Air, Asiana Airlines, and Jeju Air all fly nonstop from Hanoi to Seoul. Each of the four main carriers — VietJet, Vietnam Airlines, Korean Air, and Asiana — operates 28 flights a week (daily service with multiple departures), while Jeju Air runs 8 weekly flights. Typical per‑carrier fares are not included in the available data, so I cannot provide median prices.",
        "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 Hanoi and Seoul?",
        "answer": "Common layover cities between Hanoi and Seoul include Hong Kong, Taipei, and Bangkok. These hubs offer competitive total travel times, with efficient transfer processes and visa-free transit options for many nationalities, ensuring a smooth connection."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Hanoi to Seoul?",
        "answer": "On-time reliability is generally good, though afternoon departures can be affected by air traffic or weather. Morning flights on Korean Air and Vietnam Airlines tend to depart more punctually."
      },
      "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 fewer tourists than summer."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Hanoi to Seoul?",
        "answer": "Bring a passport valid for at least six months, your K-ETA 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 Seoul?",
        "answer": "Incheon handles almost all international flights and is the primary gateway. Gimpo serves domestic routes and a few short‑haul international flights, mainly to China and Japan, and is closer to central Seoul."
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Seoul airport?",
        "answer": "Seoul Incheon Airport has a transit hotel (Incheon Airport Transit Hotel) located airside on the 4th floor of Terminal 1, with rooms available in 6‑hour blocks. Terminal 2 offers designated nap/rest zones with reclined loungers near gates 262–268, and landside there are wide, armrest‑free benches on Level 1. For a full‑service hotel, the ibis Styles Ambassador Incheon Airport is nearby and connected by a free shuttle.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://www.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/customer/FAQ",
            "title": "Incheon Airport Transit Hotel",
            "time_published": "2022-06-13T00:00:00Z"
          },
          {
            "url": "http://www.sleepinginairports.net/asia/seoul.htm",
            "title": "Seoul Incheon Airport Guide (ICN) - Sleeping in Airports",
            "time_published": "2026-04-13T17:34:21Z"
          },
          {
            "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://all.accor.com/a/en/destination/city/hotels-seoul-v5556.html",
            "title": "Hotels in Seoul | Accor ALL.com",
            "time_published": "2025-01-20T00:00:00Z"
          },
          {
            "url": "https://www.walkerhill.com/transithotel/m/en/t1/about/Introduction.jsp",
            "title": "Incheon Airport Transit Hotel",
            "time_published": "2022-06-13T00:00:00Z"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Incheon Intl Airport?",
        "answer": "Incheon International Airport provides currency exchange offices in both Terminal 1 and Terminal 2, located in the public areas of the departure and arrival halls. Prayer rooms are available in the duty-free zones of Terminal 1 (near Gate 24, 4th floor) and Terminal 2 (near Gate 252, 4th floor), offering spaces for prayer and meditation. Free Wi‑Fi is accessible throughout the airport; simply connect to the 'AirportWiFi' network without a password.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://airport.kr/ap_en/1562/subview.do",
            "title": "International Incheon Airport"
          },
          {
            "url": "https://airport.kr/ap_en/1542/subview.do",
            "title": "International Incheon Airport",
            "time_published": "1999-01-01T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Incheon%20International%20Airport",
            "title": "Incheon International Airport",
            "time_published": "2026-04-30T15:03:57Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/File:Incheon_International_Airport_Interior.jpg",
            "time_published": "2013-06-13T00:00:00Z"
          },
          {
            "url": "https://airport.kr/ap_en/1413/subview.do",
            "title": "International Incheon Airport"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Hanoi to Seoul?",
        "answer": "On the nonstop route from Hanoi to Seoul, the most common aircraft are the Airbus A321-100 and A318, operated by VietJet Air, along with Boeing 787 and Airbus A350-900 variants flown by Vietnam Airlines and Korean Air. Other types like the Boeing 737 and A321neo also appear, though the exact aircraft can vary by day and airline. Wi-Fi and seatback entertainment are widely available on these flights, though specific features depend on the carrier and aircraft configuration.",
        "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 Hanoi to Seoul?",
        "answer": "Korean Air, Vietnam Airlines, and Asiana Airlines serve Hanoi to Seoul nonstop — Korean Air and Vietnam Airlines are SkyTeam members, while Asiana Airlines belongs to Star Alliance. VietJet Air and Jeju Air also fly the route but are not part of any 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"
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Hanoi to Seoul?",
        "answer": "Baggage rules depend on the airline and fare type. Basic Economy tickets often exclude a free checked bag; standard international economy fares typically include at least one checked bag and a carry‑on. Premium cabins offer higher limits."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Hanoi to Seoul?",
        "answer": "On the Hanoi to Seoul route you'll find Economy and flat-bed Business class on most flights; Premium Economy is available on select carriers like Vietnam Airlines."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies vary by airline and fare; flexible tickets and premium cabins often allow same‑day changes or standby, but restrictions apply to lower fares."
      }
    }
  }
}