{
  "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": "The flight from Hanoi to Seoul covers about 1,670 miles. Nonstop flights typically take 4 hours 15 minutes outbound, while the return leg is about 4 hours 50 minutes, with the eastbound trip to Seoul being the shorter direction.",
        "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"
        ]
      },
      "q3": {
        "question": "What are the ground transportation options in Seoul?",
        "answer": "From Incheon International Airport (ICN), the fastest and most-used option into Seoul is the AREX express train, which reaches Seoul Station in about 43 minutes for 8,000 won. An all-stop commuter train is also available for around 4,150 won, taking roughly an hour. Airport limousine buses serve many neighborhoods directly, with fares around 17,000–18,000 won and travel times of 70–90 minutes. Taxis and ride-share services are readily available, while car rentals are possible but less common for city access.",
        "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": "Overnight red‑eye flights from Hanoi to Seoul are available nonstop on VietJet Air, Korean Air, Asiana Airlines, and Vietnam Airlines, with departures clustered between roughly 10:50 PM and 11:50 PM. These flights operate daily and arrive at Incheon (ICN) in the early hours of the next morning.",
        "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 Incheon. Each of the four main carriers — VietJet, Vietnam Airlines, Korean Air, and Asiana — operates 28 flights per week with daily service, while Jeju Air offers 8 weekly flights, also daily. Specific per‑carrier fares are not listed, but the schedule is robust with multiple daily departures from early morning to late evening.",
        "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": "Popular layover cities include Hong Kong, Taipei, and Bangkok, which offer broad connections, efficient transfers, and often visa‑free transit for many passport holders, keeping total travel time competitive."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Seoul?",
        "answer": "April to June and September to October offer pleasant temperatures and lighter crowds 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, a K-ETA or visa if required, proof of onward travel, a payment method for baggage, and any vaccination certificates currently mandated by South Korea."
      },
      "q12": {
        "question": "Which airport should I use in Seoul?",
        "answer": "Incheon is the main international gateway, well‑connected to the city by express train, and serves most full‑service carriers. Gimpo is closer to downtown Seoul and handles domestic flights and some short‑haul international routes, mainly to China, Japan, and Taiwan."
      },
      "q13": {
        "question": "How do I get to Noi Bai Intl Airport from the city center?",
        "answer": "From downtown Hanoi, the most popular way to reach Noi Bai International Airport is by metered taxi or ride‑share, which takes about 30 minutes and is the fastest door‑to‑door option. Public express buses and shared minibuses also serve the airport, offering a cheaper alternative with slightly longer travel times due to stops. Driving and parking are possible, with the airport accessible via the Nhật Tân Bridge or National Road 3, but most visitors prefer not to self‑drive. Overall, taxis and ride‑shares are the most convenient and widely used choice.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://hanoiairportonline.com/hanoi-airport-transportation",
            "title": "Hanoi Airport Transportation – Hanoi Airport Guide",
            "favicon": "https://www.hanoiairportonline.com/wp-content/themes/eleven40-pro-airport/images/favicon.ico"
          },
          {
            "url": "https://hanoiairportonline.com",
            "title": "Hanoi Airport Guide – Hanoi International Airport (Noi Bai) Vietnam",
            "favicon": "https://www.hanoiairportonline.com/wp-content/themes/eleven40-pro-airport/images/favicon.ico"
          },
          {
            "url": "https://en.wikipedia.org/wiki/VVNB_Airport",
            "title": "Noi Bai International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-06-08T17:07:05Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Noi%20Bai%20International%20Airport",
            "title": "Noi Bai International Airport",
            "time_published": "2026-04-30T17:46:29Z"
          },
          {
            "url": "http://www.hanoiairportonline.com/public-taxi",
            "title": "Hanoi Airport Public Taxi – Hanoi Airport Guide",
            "time_published": "2026-01-01T00:00:00Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Seoul airport?",
        "answer": "Seoul Incheon Airport has a transit hotel airside in Terminal 1 on the 4th floor, offering rooms in 6‑hour blocks for international transfer passengers. Terminal 2 does not have a hotel inside security, but there are free rest zones with reclining loungers near gates 262–268; the nearby ibis Styles Ambassador Incheon Airport is connected by shuttle. No shuttle is needed for the Terminal 1 transit hotel as it is directly inside the departure area.",
        "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 (ICN) offers currency exchange services, prayer rooms, and free Wi‑Fi. Currency exchange counters are located on the 3rd floor departure hall before security and in the 1st floor arrival hall. Prayer rooms are available in both Terminal 1 (near Gate 43) and Terminal 2 (near Gate 268), with separate facilities for men and women, plus ablution areas. Free Wi‑Fi is provided throughout the airport, accessible via the network name 'AirportWiFi'.",
        "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 Hanoi–Seoul route, the most common aircraft types are the Airbus A321 (including the -100 and A321neo variants) and the Boeing 787, with some flights also operated by Airbus A350s, A318s, and Boeing 737s. The exact aircraft varies by airline and day, but the A321 and 787 appear most frequently in the schedule. Wi‑Fi and seatback entertainment are widely available on these modern jets, though specific features depend on the 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"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Hanoi?",
        "answer": "In the international terminal (T2) at Noi Bai International Airport in Hanoi, the main lounge options are the SH Premium Lounge Ha Noi and SH Premium Lounge Ha Noi 3. Both are independent lounges accessible via Priority Pass, LoungeKey, or by paying at the door; eligibility typically includes certain premium credit cards or a day pass. These lounges offer comfortable seating, light snacks, and beverages, with SH Premium Lounge Ha Noi 3 staying open until 2:00 AM for late-night departures. Vietnam Airlines operates its own Lotus Lounge for business class passengers and elite status holders, featuring local food and shower facilities.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/HAN",
            "title": "American Express Lounges at Noi Bai International Airport | Amex US",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "https://www.prioritypass.com/en-GB/lounges/vietnam/noi-bai-international",
            "title": "Noi Bai International Airport HAN Lounges - HAN Airport Guide and lounges. | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://americanexpress.com/en-gb/travel/lounges/the-platinum-card/HAN",
            "title": "American Express Lounges at Noi Bai International Airport | Amex GB",
            "time_published": "2026-05-02T00:00:00Z"
          },
          {
            "url": "https://prioritypass.com/en/lounges/vietnam/hanoi-noibai-international/han5-asg-sky-lounge",
            "title": "Noi Bai International Airport HAN Lounges - HAN Airport Guide and lounges.  | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/VVNB_Airport",
            "title": "Noi Bai International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-06-08T17:07:05Z"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Hanoi to Seoul?",
        "answer": "Baggage rules vary by carrier. Basic economy tickets are restrictive and may not include a checked bag. Standard international economy fares typically allow one checked bag and a carry-on, while premium classes offer more."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Hanoi to Seoul?",
        "answer": "Typical options include Economy and flat-bed Business class on most airlines, with Premium Economy available on select carriers."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies differ across airlines and fare types; flexible and business‑class tickets generally allow same‑day changes or standby, while restricted economy fares often do not."
      }
    }
  }
}