{
  "response": {
    "Key": "DEL-HAN",
    "orig": {
      "code": "DEL",
      "type": "airport",
      "city": "Delhi",
      "fullCity": "Delhi, India",
      "airport": "Indira Gandhi 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 Delhi to Hanoi?",
        "answer": "A nonstop flight from Delhi (DEL) to Hanoi (HAN) typically takes around 4 hours 30 minutes to 5 hours. One-stop flights with common layovers in Bangkok or Kuala Lumpur usually range from 7 to 10 hours total travel time. Return flights are generally similar in duration. IndiGo and VietJet often provide the fastest nonstop options."
      },
      "q1": {
        "question": "Are there any direct flights from Delhi to Hanoi?",
        "answer": "Yes, there are direct nonstop flights from Delhi (DEL) to Hanoi (HAN). IndiGo (6E) operates two daily flights, Vietnam Airlines (VN) flies on Monday, Wednesday, Friday, and Sunday with late-evening departures, and VietJet Air (VJ) runs three times a week on Wednesday, Friday, and Sunday.",
        "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. 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 Delhi to Hanoi?",
        "answer": "Yes, visa requirements apply for travel from Delhi, India to Hanoi, Vietnam. Indian citizens need a visa to enter Vietnam; they can apply for an e-visa online for stays up to 90 days. Vietnamese citizens need a visa to enter India; they can apply for an e-visa for tourism, business, or medical visits. Travelers of other nationalities should check based on their passport. Ensure your passport is valid for at least 6 months beyond your arrival date."
      },
      "q3": {
        "question": "What are the ground transportation options in Hanoi?",
        "answer": "From Noi Bai International Airport (HAN) to Hanoi's city center, travelers have several options. Taxis are widely available and take about forty to fifty minutes, costing around 300,000 to 400,000 VND. Ride-share services like Grab are popular, often cheaper and more convenient. Public buses, such as route 86, connect the airport to the city center and Hoan Kiem Lake in about an hour, costing only 45,000 VND, making them the most budget-friendly choice. The new Cat Linh-Ha Dong metro line does not directly serve the airport, but can be accessed after a short bus or taxi ride. Private airport transfers are reliable and can be booked in advance. Car rentals are uncommon for city travel due to heavy traffic and limited parking. The most used option is ride-share services, particularly Grab, for their balance of cost, convenience, and ease of booking via smartphone."
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Delhi to Hanoi?",
        "answer": "Yes, Vietnam Airlines operates nonstop red-eye flights from Delhi (DEL) to Hanoi (HAN) four times a week — on Mondays, Wednesdays, Fridays, and Sundays. These flights typically depart around 11:30–11:35 PM and arrive 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 Delhi to Hanoi?",
        "answer": "Nonstop flights from Delhi (DEL) to Hanoi (HAN) are operated by IndiGo (6E) daily with two departure times, Vietnam Airlines (VN) four days a week on Monday, Wednesday, Friday, and Sunday, and VietJet Air (VJ) on Wednesday, Friday, and Sunday.",
        "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.",
        "toolsUsed": [
          "route_airlines"
        ]
      },
      "q8": {
        "question": "If I need a connection, what are common layover cities between Delhi and Hanoi?",
        "answer": "Common layover cities between Delhi and Hanoi include Bangkok, Kuala Lumpur, Singapore, and Hong Kong. Bangkok offers frequent connections and a short detour. Kuala Lumpur provides efficient transfers and competitive fares. Singapore is known for smooth transit and strong airline alliances. Hong Kong gives broad one-stop options, though it may add slightly more travel time."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Delhi to Hanoi?",
        "answer": "On‑time reliability is moderate, with seasonal fog in Delhi and air traffic congestion causing occasional delays. Choosing early morning departures on carriers like Vietnam Airlines or IndiGo typically improves your chances of an on‑time departure."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Hanoi?",
        "answer": "October to December and March to April offer cooler, drier weather and fewer tourists than peak winter."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Delhi to Hanoi?",
        "answer": "Bring your passport with at least six months validity, a valid Vietnam visa or e-visa approval, proof of onward or return travel, payment for any baggage fees, and your international vaccination certificate if required."
      },
      "q12": {
        "question": "Which airport should I use in Hanoi?",
        "answer": "Noi Bai International Airport (HAN) is the only airport serving Hanoi. It is located about 30 km north of the city center and handles all international and domestic flights, with airlines such as Vietnam Airlines, VietJet Air, and Bamboo Airways operating there."
      },
      "q13": {
        "question": "How do I get to Indira Gandhi Intl Airport from the city center?",
        "answer": "From central Delhi to Indira Gandhi International Airport, the Delhi Metro Airport Express is fastest, taking about 20 minutes and is affordable. Prepaid taxis and app‑based rideshares are door‑to‑door but cost more and take 30–60 minutes depending on traffic. DTC buses are the cheapest but slowest. Driving and parking are available but generally more expensive and less convenient."
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Hanoi airport?",
        "answer": "No on-site hotels or sleeping pods exist inside Hanoi Airport. Several nearby hotels offer free shuttle service, including the Noi Bai Airport Hotel and the Hanoi Airport Suites, both within a 5-minute drive. Sleep pods are not available."
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Noi Bai Intl Airport?",
        "answer": "Noi Bai International Airport has currency exchange desks in both terminals, a prayer room in Terminal 2 near the international departures area, and free Wi‑Fi available throughout the airport."
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Delhi and Hanoi airports?",
        "answer": "Delhi Airport (DEL) offers free wheelchair assistance, accessible restrooms, tactile paths, and a children’s play area in Terminal 3. Hanoi Airport (HAN) provides wheelchair service, accessible toilets, and a small kids' play zone in the international terminal. Request assistance from your airline at least 48 hours before departure."
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Delhi to Hanoi?",
        "answer": "There is no nonstop service between Delhi (DEL) and Hanoi (HAN); common connecting flights use a Boeing 787, Airbus A321-100, or Airbus A318 on the long leg, most often via Ho Chi Minh City (SGN) on Vietnam Airlines or VietJet, though other routings via Bangkok (BKK), Hong Kong (HKG), or Singapore (SIN) may feature Boeing 777-300ER or Airbus A350-900 aircraft. The exact aircraft can vary by day and airline, and Wi‑Fi and seatback entertainment are widely available on many of these connecting itineraries.",
        "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 Delhi to Hanoi?",
        "answer": "Nonstop flights from Delhi to Hanoi are operated by IndiGo, Vietnam Airlines, and VietJet Air. Of these, only Vietnam Airlines belongs to a global alliance — it is a SkyTeam member — while IndiGo and VietJet Air are unaffiliated with any major alliance. Other alliances such as Star Alliance or oneworld may serve the route via connections but do not operate nonstop service.",
        "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.",
        "toolsUsed": [
          "route_airlines"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Delhi?",
        "answer": "At Delhi Indira Gandhi International, Air India's Maharaja Lounges in Terminal 3 serve business‑class passengers and Star Alliance Gold members with buffets and showers. The Plaza Premium Lounge (Domestic and International) and Encalm Lounge accept Priority Pass and day passes, offering dining, bars and quiet zones."
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Delhi to Hanoi?",
        "answer": "Baggage allowance on Delhi–Hanoi flights depends on the airline and fare class. Basic economy often excludes checked baggage, while standard international economy typically includes one checked bag and a carry-on. Premium economy and business class offer higher limits, usually two checked bags and larger carry-on allowances. Always verify with your specific airline."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Delhi to Hanoi?",
        "answer": "On direct flights between Delhi and Hanoi, you can typically choose Economy, Premium Economy, or flat‑bed Business class."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Same-day changes or standby depend on the airline and fare type, with flexible and premium cabin tickets offering the best options."
      },
      "q24": {
        "question": "What are the cheapest days and times to fly from Delhi to Hanoi?",
        "answer": "The cheapest day to fly from Delhi to Hanoi is Tuesday, with an average fare around $683 and a minimum of $374, while Sunday is the most expensive day averaging $914. The cheapest time of day to depart is late night, with fares starting at $337, whereas afternoon departures are the priciest, starting at $1,718.",
        "methodology": "The cheapest day of the week and time of day to depart are drawn from the same large sample of real fares Priceline users found on this route in the last 72 hours, grouped by the day of the week and by the time-of-day window of the outbound departure, with the lowest and average price reported for each.",
        "relevant": true,
        "toolsUsed": [
          "departure_timing"
        ]
      },
      "q25": {
        "question": "What is a good price for a flight from Delhi to Hanoi?",
        "answer": "A good price for a flight from Delhi to Hanoi is anything under $466, which is considered a great deal; the typical fare on this route is around $708.",
        "methodology": "The typical price, the lowest fare, a 'great deal' threshold, and how fares are spread across price bands are summarized from a large sample of the real fares Priceline users found on this route in the last 72 hours, with a small fraction of extreme outlier fares excluded from the range.",
        "relevant": true,
        "toolsUsed": [
          "price_context"
        ]
      }
    }
  }
}