{
  "response": {
    "Key": "DEL-CCU",
    "orig": {
      "code": "DEL",
      "type": "airport",
      "city": "Delhi",
      "fullCity": "Delhi, India",
      "airport": "Indira Gandhi Intl Airport"
    },
    "dest": {
      "code": "CCU",
      "type": "airport",
      "city": "Kolkata",
      "fullCity": "Kolkata, India",
      "airport": "Netaji Subhash Chandra Bose Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Delhi to Kolkata?",
        "answer": "A nonstop flight from Delhi (DEL) to Kolkata (CCU) typically takes about 2 hours 10 minutes to 2 hours 20 minutes. The return flight from Kolkata to Delhi is similar, usually around 2 hours 15 minutes to 2 hours 25 minutes. Connecting flights, often via cities like Patna or Varanasi, can take 4 to 6 hours or more. IndiGo and Air India generally operate the fastest nonstop services."
      },
      "q1": {
        "question": "Are there any direct flights from Delhi to Kolkata?",
        "answer": "Yes, there are direct non‑stop flights from Delhi (DEL) to Kolkata (CCU). Three airlines — IndiGo (6E), Air India (AI), and SpiceJet (SG) — operate the route daily, with a combined total of around 35 departures spread throughout the day from early morning until 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. 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"
        ]
      },
      "q3": {
        "question": "What are the ground transportation options in Kolkata?",
        "answer": "Kolkata’s Netaji Subhas Chandra Bose International Airport is located about 17 kilometers from the city center. Prepaid taxis and app-based ride shares like Uber and Ola are widely available, taking 45 minutes to an hour depending on traffic, and are the most popular choices for comfort and convenience. Air-conditioned Volvo buses operated by the West Bengal Transport Corporation offer an economical alternative, connecting the airport to major hubs like Esplanade and Howrah in about an hour to 90 minutes. The closest metro station, Noapara on the North-South corridor, is around 4 kilometers away and can be reached by auto-rickshaw or bus, providing a traffic-free option to central areas once connected. Car rentals are available but less practical for solo travelers. Most passengers use prepaid taxis or ride shares for a direct, hassle-free transfer."
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Delhi to Kolkata?",
        "answer": "Overnight red-eye flights from Delhi (DEL) to Kolkata (CCU) are available daily on Air India, IndiGo, and SpiceJet, with departures typically between 9:00 PM and 10:35 PM and arrivals 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 Kolkata?",
        "answer": "On the Delhi to Kolkata route, nonstop flights are operated by IndiGo (6E), Air India (AI), and SpiceJet (SG) based on the current schedule data. IndiGo offers the most frequent service with around 147 weekly flights, followed by Air India with about 77, and SpiceJet with 21. Other carriers may also serve this route with connecting itineraries, but these three are the primary nonstop operators.",
        "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 Kolkata?",
        "answer": "Delhi to Kolkata is a domestic Indian route with frequent non‑stop flights, so connections are unusual. If needed, layovers in Mumbai, Hyderabad or Raipur may appear, but they typically increase total travel time and are rarely competitive."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Delhi to Kolkata?",
        "answer": "On-time performance on the Delhi to Kolkata route is generally dependable, but afternoon and evening flights can be affected by air traffic congestion and weather. Early morning departures, particularly on IndiGo and Air India, tend to have better on-time records."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Kolkata?",
        "answer": "November to February are best, with cool, dry weather and fewer tourists."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Delhi to Kolkata?",
        "answer": "For domestic flights within India, bring a valid government-issued photo ID such as Aadhaar, passport, or driver's license. No visa or passport validity requirement applies. Have a payment method for baggage fees. Proof of onward travel and vaccination certificates are generally not required for domestic travel, but check any health advisories."
      },
      "q12": {
        "question": "Which airport should I use in Kolkata?",
        "answer": "Kolkata has only one commercial airport, Netaji Subhas Chandra Bose International Airport (CCU), located about 15 km northeast of the city centre, serving all domestic and international flights."
      },
      "q13": {
        "question": "How do I get to Indira Gandhi Intl Airport from the city center?",
        "answer": "From central Delhi to Indira Gandhi International, the Delhi Metro Airport Express Line takes about 20 minutes and is the fastest and most popular option, offering a reliable and affordable ride. Taxis and ride‑shares are convenient but more expensive, with travel times of 30–60 minutes depending on traffic. DTC buses serve the airport at a lower cost but are slower. Driving and parking are available but costly."
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Kolkata airport?",
        "answer": "Kolkata Airport does not have any on-site hotels, capsule hotels, or sleeping pods. The nearest hotel is the Holiday Inn Kolkata Airport, which is about 4 km away and provides a shuttle service. Other nearby options like the Swissotel Kolkata also offer shuttle transfers."
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Delhi and Kolkata airports?",
        "answer": "Delhi Airport provides wheelchair assistance, accessible restrooms, and dedicated help desks; children's play areas are located in Terminal 3 domestic and international. Kolkata Airport offers wheelchair service and accessible facilities; a children's play zone is available in the domestic terminal. For both airports, request assistance from your airline at least 48 hours before departure."
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Delhi to Kolkata?",
        "answer": "Nonstop flights from Delhi to Kolkata are typically operated with Airbus A321-100s by IndiGo and Airbus A320-200 Neos by Air India, with Boeing 737-800s and 737s also appearing on SpiceJet; the exact aircraft can vary by day and airline.",
        "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 Kolkata?",
        "answer": "The nonstop carriers on DEL–CCU are IndiGo (6E), Air India (AI), and SpiceJet (SG). Air India is a Star Alliance member, while IndiGo and SpiceJet are not part of any global alliance. Other alliances (oneworld, SkyTeam) do not have a nonstop presence on this route but may offer connecting itineraries through partner carriers.",
        "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's Indira Gandhi International Airport, Air India operates the Maharaja Lounge in Terminal 3 for business-class passengers and Star Alliance Gold members, featuring buffet dining and a bar. The Plaza Premium Lounge in Terminal 3 accepts Priority Pass and day-pass guests, offering showers and a quiet rest area. The Encalm Lounge in Terminal 3 provides spa services and is accessible via select credit cards or a paid entry."
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Delhi to Kolkata?",
        "answer": "Domestic flights within India differ from international routes. Most airlines on Delhi–Kolkata offer at least one free carry-on bag, but checked baggage allowances vary by airline and fare class. Basic or Lite fares may exclude free checked bags, while standard economy typically includes 15–25 kg. Check your specific airline for exact limits."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Delhi to Kolkata?",
        "answer": "Domestic India flights rarely feature Premium Economy or flat-bed Business; typical cabins are Economy and standard recliner Business class."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies differ by airline and fare; flexible and premium tickets usually allow same‑day changes or standby, while Basic Economy generally does not."
      },
      "q24": {
        "question": "What are the cheapest days and times to fly from Delhi to Kolkata?",
        "answer": "The cheapest day to fly from Delhi to Kolkata is Wednesday, with an average fare around $167, while Saturday is the most expensive at about $964. The cheapest time of day to depart is late night, with fares as low as $159, whereas early morning departures are priciest with a minimum of $1190.",
        "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 Kolkata?",
        "answer": "A good price for a flight from Delhi to Kolkata is a great deal under $164, while the typical price is around $370. The lowest price observed is $159, and most fares fall between $0 and $400.",
        "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"
        ]
      }
    }
  }
}