{
  "response": {
    "Key": "DEL-IAD",
    "orig": {
      "code": "DEL",
      "type": "airport",
      "city": "Delhi",
      "fullCity": "Delhi, India",
      "airport": "Indira Gandhi Intl Airport"
    },
    "dest": {
      "code": "IAD",
      "type": "airport",
      "city": "Washington",
      "fullCity": "Washington, United States",
      "airport": "Washington Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Delhi to Washington?",
        "answer": "A nonstop flight from Delhi (DEL) to Washington Dulles (IAD) typically takes about 15 hours 30 minutes to 16 hours. With one stop, common layovers in cities like Doha, Dubai, or London extend total travel time to around 19 to 22 hours. The return flight from Washington to Delhi is usually about 1–1.5 hours shorter due to prevailing tailwinds."
      },
      "q1": {
        "question": "Are there any direct flights from Delhi to Washington?",
        "answer": "There are no nonstop flights from Delhi to Washington Dulles. The quickest one-stop connections are typically via Dubai on Emirates or via Newark on United, with total travel times around 16 to 18 hours. The most common connecting hubs include London Heathrow, New York JFK, Doha, and Abu Dhabi, and one-stop fares generally start around $864.",
        "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. Stop counts, connecting hubs, and per-airline prices are drawn from a large sample of the real fares Priceline users found on this route in the last 72 hours. We group those fares by number of stops, by the hub airport a connection routes through, and by operating airline, and report each group's share of the sample alongside its lowest and median price.",
        "toolsUsed": [
          "route_airlines",
          "flight_schedule",
          "route_options"
        ]
      },
      "q2": {
        "question": "Are there visa requirements to travel from Delhi to Washington?",
        "answer": "Yes. Indian citizens must obtain a U.S. visa before traveling to Washington, unless they qualify for the Visa Waiver Program (India is not a participant). U.S. citizens need a visa or an e-Visa for India; they can apply online for an e-Tourist visa before departure. Travelers of other nationalities should check both U.S. and Indian entry requirements based on their citizenship."
      },
      "q3": {
        "question": "What are the ground transportation options in Washington?",
        "answer": "From Washington Dulles (IAD), the fastest and most-used option is a taxi or ride-share, with Uber and Lyft authorized for pickup and Washington Flyer Taxi available 24/7 at the curb; a trip to downtown D.C. takes about 35–50 minutes and costs roughly $60–$80. The Silver Line Metrorail is a reliable mass-transit alternative—ride the Silver Line Express bus ($5) to Wiehle-Reston East station, then take the train into the city; total travel time is around 60–75 minutes and costs under $10. Shared-ride vans like SuperShuttle offer door-to-door service at a middle price point, while rental cars are available on-site for those who prefer to drive.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://flydulles.com/flight-schedule-dulles-international-airport-iad",
            "title": "flydulles.com - Flight Schedule - Dulles International Airport (IAD)",
            "time_published": "2022-03-01T00:00:00Z"
          },
          {
            "url": "https://parking.flydulles.com/economy-parking",
            "title": "Dulles International Airport Parking | Economy Parking",
            "time_published": "2026-02-06T00:00:00Z"
          },
          {
            "url": "https://www.mwaa.com/ipw-2017-archived",
            "title": "IPW 2017 - Archived",
            "time_published": "2021-02-01T00:00:00Z"
          },
          {
            "url": "https://www.mwaa.com/policefireems/fire-ems/fire-ems-washington-dulles-international-airport",
            "title": "mwaa.com - Fire & EMS at Washington Dulles International Airport",
            "favicon": "https://www.mwaa.com/themes/custom/mwaa_barrio/favicon.ico",
            "time_published": "2023-09-01T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Dulles%20International%20Airport",
            "title": "Dulles International Airport",
            "time_published": "2026-04-30T14:07:38Z"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Delhi to Washington?",
        "answer": "The cheapest months to fly from Delhi to Washington are September, April, and August, with average fares around $813, $826, and $853 respectively. The most expensive months are December, June, and July, where average fares climb to about $1181, $1131, and $1049.",
        "methodology": "This 'good deal' estimate shows a representative best price for each departure date across roughly a 12-month window (about 3 months back and 9 months forward). It is built from real flight prices found by Priceline users searching this route, accumulated into a price history for each departure date. Rather than weighting all of that history equally, we apply exponential time decay so recent prices dominate — a price seen yesterday counts almost in full, one from about a month ago roughly a third, and prices from a few months back very little — giving a figure that tracks today's market instead of a stale long-run average. Clear price outliers are removed before any calculation, departure dates with no observations are filled in from nearby dates, and the resulting curve is lightly smoothed so it reads as a clean seasonal trend rather than day-to-day noise. For this route, fares for the requested travel direction were unavailable, so the pattern shown is derived from the reverse direction, which shares the same seasonal demand cycle.",
        "toolsUsed": [
          "seasonal_prices"
        ]
      },
      "q5": {
        "question": "How far in advance should I book tickets from Delhi to Washington?",
        "answer": "The best time to book flights from Delhi to Washington is about 9 to 12 weeks before departure, when average fares drop to around $978. For summer or holiday travel, booking even earlier—closer to 12 weeks out—is advisable, as last-minute tickets can spike to $1,396.",
        "methodology": "This booking-window guidance is built from the same real flight prices found by Priceline users searching this route, re-grouped by how many days before departure each price was seen (from the departure day out to about 180 days ahead) across the route's price history. At each booking lead time we report the 25th-percentile price — the cheaper end of what travelers were quoted, rather than the rock-bottom minimum (which can be a fluke) or the average (which is pulled up by expensive last-minute fares). The buy-or-wait advice then applies a risk premium that grows as departure approaches, since seat availability shrinks and prices become less predictable; using that adjusted curve we flag windows where waiting is likely to save a meaningful amount (at least $20 or 5%) versus windows where booking now is the better call. Isolated single-day recommendations are filtered out, so the advice only reflects a window that holds for several days in a row. For this route, fares for the requested travel direction were unavailable, so the pattern shown is derived from the reverse direction, which shares the same seasonal demand cycle.",
        "toolsUsed": [
          "booking_timing"
        ]
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Delhi to Washington?",
        "answer": "Overnight red-eye flights are available from Delhi to Washington via connecting itineraries whose long leg is a red-eye. United offers a red-eye from Delhi to Newark (departing 11:35 PM, arriving 6:20 AM) with a connection onward to Washington Dulles, and American operates a red-eye from Delhi to JFK (departing 11:30 PM, arriving 5:59 AM) with a connection to Washington Dulles.",
        "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"
        ]
      },
      "q8": {
        "question": "If I need a connection, what are common layover cities between Delhi and Washington?",
        "answer": "Common layover hubs between Delhi and Washington include Dubai, Doha, Abu Dhabi, and London. These offer efficient single-stop connections, broad onward networks, and streamlined transfers, with Middle Eastern hubs often providing visa-free transit for many nationalities."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Delhi to Washington?",
        "answer": "On‑time performance is generally reliable, though evening flights can experience delays due to congestion. Early departures, such as those on Air India or United, tend to be more punctual."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Washington?",
        "answer": "April to May and September to October offer pleasant temperatures and fewer crowds than summer."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Delhi to Washington?",
        "answer": "Bring a passport valid for at least six months beyond your stay, a valid U.S. visa or ESTA 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 Washington?",
        "answer": "Washington Dulles is the primary international airport, located about 42 km west of downtown, serving as a Star Alliance hub with direct Metro access. Ronald Reagan National is just 8 km south of downtown, ideal for domestic flights and closer to the National Mall. Baltimore/Washington International is farther, about 50 km northeast, offering a mix of domestic and some international flights, often with lower fares."
      },
      "q13": {
        "question": "How do I get to Indira Gandhi Intl Airport from the city center?",
        "answer": "The Delhi Metro's Orange Line (Airport Express) is the fastest and most popular way to reach Indira Gandhi International Airport (DEL) from central Delhi, with trains running frequently from New Delhi Railway Station. Ride‑share services like Uber and Ola, as well as prepaid taxis, are widely available and offer door‑to‑door convenience at a higher cost. DTC buses and private shuttle services provide economical alternatives, though they are subject to traffic. Driving and parking at the airport is possible, with both short‑term and long‑term lots, but it's generally the least convenient option for visitors.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/AeroTrain%20%28Dulles%20International%20Airport%29",
            "title": "AeroTrain (Dulles International Airport)",
            "time_published": "2026-03-17T21:57:59Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Dulles_International_Airport_Main_Terminal",
            "title": "Dulles International Airport Main Terminal",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-04T23:35:29Z"
          },
          {
            "url": "https://stanstedairport.com/getting-to-and-from/stansted-airport-train-station/",
            "title": "Stansted Airport Train Station | London Stansted Airport",
            "favicon": "https://assets.live.dxp.maginfrastructure.com/f/73114/150x150/fc2528bf7d/stn-favicon.png",
            "time_published": "2026-06-23T16:16:40Z"
          },
          {
            "url": "https://stanstedairport.com/at-the-airport/airport-facilities/free-wifi",
            "title": "Wi-Fi | London Stansted Airport",
            "time_published": "2026-05-01T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Dulles_International_Airport_station",
            "title": "Dulles International Airport station",
            "time_published": "2026-06-03T10:24:50Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Washington airport?",
        "answer": "Washington Dulles Airport does not have on-site hotels or sleeping pods inside the terminal, but the airside Sleepbox Lounge offers 16 sound-proof rooms for rest between flights. For a full hotel, the Washington Dulles Airport Marriott is located on airport grounds and connected by a free shuttle that runs every 15 minutes; several other nearby hotels also provide shuttle service.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://sleepinginairports.net/guides/washington-dulles-airport-guide.htm",
            "title": "Washington Dulles Airport Guide (IAD) - 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": "2018-08-08T21:11:21Z"
          },
          {
            "url": "https://www.sleepinginairports.net/sleep-guide/sleeping-in-washington-dulles-airport.htm",
            "title": "Sleeping in Washington Dulles Airport",
            "time_published": "2024-09-12T00:00:00Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/iadap-washington-dulles-airport-marriott/overview/?scid=d2406702-e8ea-4b45-bb9b-69",
            "title": "Hotel near IAD Airport | Washington Dulles Airport Marriott",
            "time_published": "2025-02-19T00:00:00Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/iadap-washington-dulles-airport-marriott/overview/?scid=f2ae0541-1279-4f24-b197-a979c79310b0",
            "title": "Hotel near IAD Airport | Washington Dulles Airport Marriott",
            "time_published": "2024-10-11T00:00:00Z"
          },
          {
            "url": "https://www.flydulles.com/",
            "title": "Official Website of Washington Dulles International Airport - IAD",
            "favicon": "https://www.flydulles.com/themes/custom/mwaa_barrio/favicon.ico",
            "time_published": "2026-07-17T00:00:00Z"
          },
          {
            "url": "https://www.airportsdata.net/airport-IAD-accommodation/",
            "title": "Sleeping at Dulles airport - Washington D.C.",
            "time_published": "2025-12-01T00:00:00Z"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Washington Intl Airport?",
        "answer": "Washington Dulles International Airport offers currency exchange through International Currency Exchange services, free Wi‑Fi throughout the terminal, and an interfaith chapel located pre‑security in the main terminal near baggage claim.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://www.flydulles.com/dulles-international-airport-nominated-2024-usa-todays-10best-shopping-large-airport-lounge",
            "title": "Dulles International Airport Nominated for 2024 USA Today’s ‘10Best’ Shopping, Large Airport & Lounge | flydulles.com",
            "time_published": "2022-03-01T00:00:00Z"
          },
          {
            "url": "https://flydulles.com/about-dulles-international",
            "title": "flydulles.com - About Dulles International",
            "time_published": "2022-03-01T00:00:00Z"
          },
          {
            "url": "https://mwaa.com/iad-rfi",
            "title": "mwaa.com - US DOT Request for Information to Revitalize Washington Dulles International Airport",
            "favicon": "https://mwaa.com/themes/custom/mwaa_barrio/favicon.ico"
          },
          {
            "url": "https://mwaa.com/alert/rfi-revitalize-dulles-international-airport",
            "title": "mwaa.com - US DOT Request for Information to Revitalize Washington Dulles International Airport",
            "favicon": "https://mwaa.com/themes/custom/mwaa_barrio/favicon.ico"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Dulles%20International%20Airport",
            "title": "Dulles International Airport",
            "time_published": "2026-04-30T14:07:38Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Delhi to Washington?",
        "answer": "There is no nonstop service from Delhi to Washington, so all flights connect. On the long-haul segment, Boeing 787-9 and Boeing 777 variants are the most common aircraft, with the Airbus A380-800 also appearing on Emirates connections via Dubai. The exact aircraft varies by airline and day, but widebody twinjets 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 Delhi to Washington?",
        "answer": "No airline flies nonstop from Delhi to Washington, but all three global alliances serve the route via one-stop connections: Star Alliance (e.g. United, Lufthansa, Air Canada, Turkish Airlines), SkyTeam (e.g. Air France, KLM, Delta), and oneworld (e.g. British Airways, American Airlines, Qatar Airways). Emirates and Etihad also operate connecting service on this route but belong to no 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. Stop counts, connecting hubs, and per-airline prices are drawn from a large sample of the real fares Priceline users found on this route in the last 72 hours. We group those fares by number of stops, by the hub airport a connection routes through, and by operating airline, and report each group's share of the sample alongside its lowest and median price.",
        "toolsUsed": [
          "route_airlines",
          "route_options"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Delhi?",
        "answer": "At Delhi's Indira Gandhi International Airport (DEL), Air India operates its Maharaja Lounge in Terminal 3, available to business and first class passengers as well as Star Alliance Gold members, featuring a buffet, bar, and quiet areas. Plaza Premium Lounge is also in Terminal 3, accessible via Priority Pass or day pass, with showers, dining, and comfortable seating. The Amex Lounge is another option in Terminal 3 for eligible American Express cardholders, offering a la carte dining and a premium bar. The Encalm Lounge in Terminal 3 provides a spa, sleep pods, and a buffet for Priority Pass members and walk-in guests. In Terminal 1, the Travel Club Lounge accepts Priority Pass and day pass users, with basic snacks and seating.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/IAD",
            "title": "American Express Lounges at Washington Dulles International Airport | Amex US",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://www.americanexpress.com/en-us/travel/lounges/the-platinum-card/IAD/Lufthansa-Senator-Lounge-Concourse-B-sPD3MZO1AD/?intlink=us-tls-travel-trendingdestinations",
            "title": "Lufthansa Senator Lounge (Temporarily Closed) at Washington Dulles International Airport | Amex US",
            "time_published": "2026-03-22T00:00:00Z"
          },
          {
            "url": "https://my.prioritypass.com/zh-CN/lounges/united-states-of-america/washington-dulles-international/iad6-air-france-klm-lounge",
            "title": "Air France - KLM Lounge IAD AIRPORT A 大厅 杜勒斯国际机场 (Washington DC Dulles Intl) | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://my.prioritypass.com/en-GB/lounges/united-states-of-america/washington-dulles-international/iad17-the-etihad-lounge",
            "title": "The Etihad Lounge IAD AIRPORT Concourse A Washington DC Dulles Intl | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Dulles%20International%20Airport%20Main%20Terminal",
            "title": "Dulles International Airport Main Terminal",
            "time_published": "2026-04-29T00:23:31Z"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Delhi to Washington?",
        "answer": "Baggage allowance on Delhi–Washington flights varies by airline and fare class. Basic economy tickets often exclude checked bags, while standard international 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 Delhi to Washington?",
        "answer": "Delhi to Washington flights typically offer Economy and flat‑bed Business class; Premium Economy is available on select airlines, while First class is rare."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies vary by airline and fare; flexible and premium cabin tickets often allow same‑day changes or standby, while basic economy tickets rarely do."
      }
    }
  }
}