{
  "response": {
    "Key": "ICN-HAN",
    "orig": {
      "code": "ICN",
      "type": "airport",
      "city": "Seoul",
      "fullCity": "Seoul, Korea",
      "airport": "Incheon Intl Airport"
    },
    "dest": {
      "code": "HAN",
      "type": "airport",
      "city": "Hanoi",
      "fullCity": "Hanoi, Vietnam",
      "airport": "Noi Bai Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Seoul to Hanoi?",
        "answer": "A nonstop flight from Seoul (ICN) to Hanoi (HAN) typically takes about 4 hours 30 minutes to 5 hours. With one stop, common layovers like Taipei or Hong Kong extend total travel time to around 7 to 9 hours. Return flights are similar, though slight variations may occur due to wind patterns."
      },
      "q1": {
        "question": "Are there any direct flights from Seoul to Hanoi?",
        "answer": "Yes, there are direct non‑stop flights from Seoul Incheon (ICN) to Hanoi (HAN). Five airlines operate the route — Asiana, Vietnam Airlines, VietJet Air, Korean Air, and Jeju Air — and all run daily. Combined they offer up to 77 weekly departures spread from early morning through 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. 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 Seoul to Hanoi?",
        "answer": "Yes, visa requirements apply. South Korean citizens can visit Vietnam visa-free for up to 45 days. Vietnamese citizens need a visa to enter South Korea, unless they are traveling to Jeju Island only. Other nationalities should check specific visa requirements for both countries."
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Seoul to Hanoi?",
        "answer": "No nonstop red-eye flights operate from Seoul (ICN) to Hanoi (HAN). Connecting itineraries whose long leg is an overnight flight are available: VietJet (VJ) offers a red-eye leg from ICN to Da Nang (DAD) departing at 22:45 and arriving at 01:25, then connecting to Hanoi; there is also a VietJet red-eye leg via Ho Chi Minh City (SGN) departing at 21:15 and arriving at 00:30. Both arrivals land in the early hours (just after midnight), not 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 Seoul to Hanoi?",
        "answer": "Asiana Airlines, Vietnam Airlines, VietJet Air, Korean Air, and Jeju Air all operate non‑stop flights from Seoul Incheon to Hanoi. Asiana and Vietnam Airlines lead with 21 weekly flights each, Korean Air and VietJet Air offer 14 per week, and Jeju Air flies daily with 7 weekly departures. Median fares for these carriers are not currently available in the schedule data.",
        "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 Seoul and Hanoi?",
        "answer": "Common layover cities include Shanghai, Hong Kong, and Taipei, which offer efficient transfers and competitive total travel times. Shanghai provides broad connections, Hong Kong is a major hub with frequent flights, and Taipei offers visa-free transit for many nationalities."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Seoul to Hanoi?",
        "answer": "On‑time performance is generally good, though afternoon flights can face minor delays. Early departures on Korean Air and Asiana tend to be more punctual."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Hanoi?",
        "answer": "October to November and March to April offer mild temperatures, low rainfall, and fewer tourists."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Seoul to Hanoi?",
        "answer": "Bring a passport valid for at least six months, a Vietnamese visa or e‑visa if required, proof of onward or return travel, a payment method for baggage, and any vaccination certificates or health declarations currently mandated."
      },
      "q12": {
        "question": "Which airport should I use in Hanoi?",
        "answer": "Noi Bai International Airport is the only airport serving Hanoi."
      },
      "q13": {
        "question": "How do I get to Incheon Intl Airport from the city center?",
        "answer": "The fastest way from downtown Seoul to Incheon Airport is the AREX Express train, which takes about 43 minutes nonstop from Seoul Station. Airport limousine buses serve major hotels and districts with comfortable seats and luggage space for a moderate fare, though they take longer in traffic. Taxis and ride‑share are door‑to‑door but cost the most, while driving yourself means using the airport’s long‑term parking lots. For most travelers the express train offers the best balance of speed and price.",
        "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"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Seoul to Hanoi?",
        "answer": "The most common aircraft on nonstop flights from Seoul (ICN) to Hanoi (HAN) is the Airbus A321, operated by VietJet Air (VJ) — the A321-100 appears most frequently, with a few A318s also in the mix. Korean Air (KE) flies the route with the Airbus A321-200 Neo and the Boeing 787-10, while Vietnam Airlines (VN) uses the Airbus A350-900 and Boeing 787, and Jeju Air (7C) fields Boeing 737s and some unspecified types. The exact aircraft varies by day and airline, but narrow-body Airbus A321-family jets dominate the route.",
        "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 Hanoi?",
        "answer": "Nonstop flights from Seoul Incheon to Hanoi are operated by Asiana Airlines (Star Alliance), Vietnam Airlines and Korean Air (both SkyTeam), plus unaligned low-cost carriers VietJet Air and Jeju Air. Star Alliance and SkyTeam are the only alliances with member airlines flying this route nonstop; oneworld is not represented nonstop but may be available via connections.",
        "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": "At Incheon Airport, Asiana Airlines operates three Business Class Lounges in Terminal 1 (East, Central, and West), accessible to Asiana business and first class passengers, Star Alliance Gold members, and eligible premium cabin travelers; they offer showers, dining, and quiet rest areas. Terminal 1 also has independent lounges like the MATINA Lounges near Gates 11 and 43, and Sky Hub Lounges (East and West), which can be accessed via Priority Pass, LoungeKey, or by paying at the door, featuring buffet food, drinks, and Wi-Fi. In Terminal 2, the Sky Hub Lounge (open 24 hours with a break) and the MATINA Lounge provide similar pay-in or membership access with comfortable seating and refreshments. Delta Sky Club is not present at ICN, but Delta passengers with SkyTeam Elite Plus status or premium cabin tickets on Korean Air can use the Korean Air Prestige Class Lounge in Terminal 2, which offers Korean cuisine, showers, and a business center.",
        "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 Hanoi?",
        "answer": "Baggage allowance on Seoul–Hanoi flights depends on the airline and fare class. Basic economy tickets are usually restrictive and may not include a checked bag; standard economy typically includes one checked bag and a carry‑on. Premium cabins offer more generous allowances."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Seoul to Hanoi?",
        "answer": "Flights from Seoul to Hanoi typically offer Economy and flat-bed Business class; Premium Economy is uncommon on this route."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies vary by airline and fare; flexible and higher cabins often allow same‑day changes or standby, while basic economy tickets typically do not."
      }
    }
  }
}