{
  "response": {
    "Key": "IAD-CDG",
    "orig": {
      "code": "IAD",
      "type": "airport",
      "city": "Washington",
      "fullCity": "Washington, United States",
      "airport": "Washington Intl Airport"
    },
    "dest": {
      "code": "CDG",
      "type": "airport",
      "city": "Paris",
      "fullCity": "Paris, France",
      "airport": "Charles de Gaulle Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Washington to Paris?",
        "answer": "The flight from Washington Dulles to Paris Charles de Gaulle is about 3,850 miles. Nonstop flights on United and Air France typically take 7 hours 30 minutes outbound, while the return leg is noticeably longer at 8 hours 40 minutes due to prevailing headwinds.",
        "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"
        ]
      },
      "q1": {
        "question": "Are there any direct flights from Washington to Paris?",
        "answer": "Yes, United and Air France both fly nonstop from Washington Dulles to Paris Charles de Gaulle, each with daily service. United operates up to 74 weekly flights with departures spread across the afternoon and late evening, while Air France fields about 38 weekly flights, also departing daily in the late afternoon and evening. The flight takes roughly 7½ hours eastbound and about 8¾ hours on the return.",
        "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, 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": [
          "route_airlines",
          "flight_schedule"
        ]
      },
      "q3": {
        "question": "What are the ground transportation options in Paris?",
        "answer": "From Charles de Gaulle Airport, the RER B train is the most-used option, reaching central Paris in about 30 minutes for roughly €11.40. Taxis offer a flat fare of €56 to the Right Bank and €65 to the Left Bank, with a typical travel time of 35–50 minutes. Ride-share services like Uber are available, and car rentals can be found at the airport, though parking in the city is challenging. The dedicated CDG Express train, launching in 2027, will cut the journey to Gare de l'Est to just 20 minutes. The RER B remains the fastest and most practical choice for most travelers.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://parisaeroport.fr/en/passengers/charles-de-gaulle-airport",
            "title": "Welcome to Charles-de-Gaulle airport (CDG Airport) - Paris Aéroport",
            "time_published": "2026-03-25T23:16:15Z"
          },
          {
            "url": "https://parisaeroport.fr/en/charles-de-gaulle-airport/terminal-3",
            "title": "Maps & Terminals at Paris Charles de Gaulle – Paris Aéroport",
            "time_published": "2026-03-25T23:15:25Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/CDG%20Express",
            "title": "CDG Express",
            "time_published": "2026-01-29T07:39:10Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Aéroport_Charles_de_Gaulle_2_TGV_station",
            "title": "Aéroport Charles de Gaulle 2 TGV station",
            "time_published": "2026-04-23T11:27:05Z"
          },
          {
            "url": "https://www.parisaeroport.fr/en/group/strategy/airport-network/paris-charles-de-gaulle-airport",
            "title": "Pardon Our Interruption"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Washington to Paris?",
        "answer": "The cheapest times to fly from Washington to Paris are September and October, with average fares around $363–369, while the most expensive period is December through July, peaking at about $463 in December and $450 in July. Late summer and early fall offer the best value, whereas winter holidays and mid-summer command the highest prices.",
        "methodology": "This seasonal price baseline is a 365-day daily curve of typical round-trip fares for the route, precomputed monthly in-house from Priceline's own air booking-summary archive (the same data that backs the site), not a third party. For each calendar day we take a representative round-trip fare — a blend of the 25th-percentile and average ticket price over the route's bookings — and Gaussian-smooth the series so it reads as a clean seasonal trend rather than day-to-day noise. Thin and international routes are neighbor-filled: the seasonal shape is borrowed from the nearest dense routes (by origin-and-destination great-circle distance) with the price level anchored to the route's own bookings, so a sparse route still shows a plausible curve. It reflects current fares and is refreshed monthly.",
        "toolsUsed": [
          "seasonal_prices"
        ]
      },
      "q5": {
        "question": "How far in advance should I book tickets from Washington to Paris?",
        "answer": "For the Washington to Paris route, booking about 4 to 7 weeks before departure yields the best fares, averaging around $413, with the single cheapest day at 35 days out at $412. Fares rise steadily outside that window, climbing above $480 if you book more than 100 days ahead or less than 10 days before travel. Summer and holiday periods typically push the optimal window earlier, closer to 7–10 weeks out, as demand pushes prices higher.",
        "methodology": "This booking-window guidance comes from the same monthly in-house analysis of Priceline's own air booking-summary archive. It expresses the typical round-trip fare as a function of how many days before departure a trip is booked — from about 180 days out down to the day of departure — aggregating the route's bookings by advance-purchase days and Gaussian-smoothing the curve the same way as the seasonal baseline. From that curve we highlight the stretch of lead times with the lowest average fare as the suggested booking window. Thin and international routes are neighbor-filled from the nearest dense routes, with the price level anchored to the route's own bookings. It reflects current fares and is refreshed monthly.",
        "toolsUsed": [
          "booking_timing"
        ]
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Washington to Paris?",
        "answer": "Yes, red‑eye flights are available from Washington Dulles to Paris CDG. Air France operates up to 17 weekly nonstop overnight departures daily, with typical departure windows around 9:25 PM to 10:25 PM. These flights arrive in Paris 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 Washington to Paris?",
        "answer": "United and Air France fly nonstop from Washington Dulles to Paris Charles de Gaulle, with United operating up to 74 weekly flights and Air France up to 38. United’s median fare is around $1,287, while Air France’s typical fare is not listed. Both carriers offer daily service with multiple departure times throughout the afternoon and 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 Washington and Paris?",
        "answer": "Common layovers include New York (JFK), Reykjavik (KEF), Dublin (DUB), and London (LHR), which keep total travel times competitive while offering broad connections and efficient transfers."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Paris?",
        "answer": "April to June and September to October offer mild, pleasant weather and fewer tourists than the summer peak."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Washington to Paris?",
        "answer": "Bring a passport valid for at least three months beyond your planned stay, any required visa or ETIAS travel authorization, proof of onward or return travel, a payment method for baggage, and any necessary vaccination or health documents."
      },
      "q12": {
        "question": "Which airport should I use in Paris?",
        "answer": "Charles de Gaulle is the main international gateway, located about 25 km northeast of central Paris, and serves most long‑haul flights including those from Washington. Orly is closer to the city centre and handles primarily domestic and European routes. Beauvais is far north and used by low‑cost carriers, but is impractical for a Washington arrival."
      },
      "q13": {
        "question": "How do I get to Washington Intl Airport from the city center?",
        "answer": "From downtown Washington, D.C. to Washington Dulles International Airport, the fastest and most popular option is a taxi or ride‑share, taking about 40 minutes. The Silver Line Express bus connects to the Wiehle‑Reston East Metrorail station every 15–20 minutes, then continues by train to downtown for the lowest cost. Shared‑van shuttles like SuperShuttle offer a middle ground between price and convenience, while driving and parking in the economy lot is affordable for those with a car.",
        "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"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Paris airport?",
        "answer": "Paris Charles de Gaulle Airport has several on-site hotels, including an Ibis located near Terminal 3 and a Courtyard by Marriott accessible via the free CDGVAL tram from all terminals. There are no capsule hotels or sleeping pods, but these hotels offer soundproofed rooms and are connected without needing an external shuttle.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://sleepinginairports.net/guides/paris-charles-de-gaulle-airport-guide.htm",
            "title": "Paris Charles de Gaulle Airport Guide (CDG) - 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": "2018-10-02T00:00:43Z"
          },
          {
            "url": "https://all.accor.com/hotel/1404/index.en.shtml",
            "title": "Ibis Paris CDG Airport - Charles-de-Gaulle Airport Hotel | ALL - ALL",
            "time_published": "2026-07-10T00:00:00Z"
          },
          {
            "url": "https://www.sleepinginairports.net/reviews/paris-charles-de-gaulle-airport-reviews.htm",
            "title": "Paris Charles de Gaulle Airport Reviews (CDG)",
            "time_published": "2024-10-08T00:00:00Z"
          },
          {
            "url": "https://meetings.accor.com/hotel/1404/index.en.shtml",
            "title": "Ibis Paris CDG Airport - Charles-de-Gaulle Airport Hotel | ALL - Meetings",
            "time_published": "2026-03-13T00:00:00Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/parca-courtyard-paris-charles-de-gaulle-central-airport/overview/",
            "title": "Courtyard Paris Charles de Gaulle Central Airport - With Free CDG Tram",
            "time_published": "2025-02-19T00:00:00Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/parca-courtyard-paris-charles-de-gaulle-central-airport/overview/?scid=f2ae0541-1279-4f24-b197-a979c79310b0",
            "title": "Courtyard Paris Charles de Gaulle Central Airport - With Free CDG Tram",
            "time_published": "2025-02-19T00:00:00Z"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Charles de Gaulle Intl Airport?",
        "answer": "Paris Charles de Gaulle Airport offers free Wi‑Fi throughout its terminals. Currency exchange offices are available in the terminals, and prayer rooms or chapels are provided for passengers. These services are marked on terminal maps and are accessible in the public and transit areas.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://parisaeroport.fr/en/passengers/charles-de-gaulle-airport",
            "title": "Welcome to Charles-de-Gaulle airport (CDG Airport) - Paris Aéroport",
            "time_published": "2026-03-25T23:16:15Z"
          },
          {
            "url": "https://parisaeroport.fr/en/charles-de-gaulle-airport/terminal-3",
            "title": "Maps & Terminals at Paris Charles de Gaulle – Paris Aéroport",
            "time_published": "2026-03-25T23:15:25Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Aéroport_Charles_de_Gaulle_2_TGV_station",
            "title": "Aéroport Charles de Gaulle 2 TGV station",
            "time_published": "2026-04-23T11:27:05Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/CDG",
            "title": "CDG",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2025-12-20T23:15:24Z"
          },
          {
            "url": "https://experiences.parisaeroport.fr/en/",
            "title": "Paris Aéroport Experiences Discover the best places in our airports !",
            "time_published": "2021-05-01T00:00:00Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Washington to Paris?",
        "answer": "Nonstop flights from Washington Dulles to Paris Charles de Gaulle are operated by United and Air France, with the Boeing 787-8 (United), Airbus A350-900, and Boeing 777-300ER (Air France) being the most common aircraft types. The exact aircraft can vary by day and airline, but these wide-body models are typical for this route. Wi-Fi and seatback entertainment are widely available on these long-haul flights.",
        "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 Washington to Paris?",
        "answer": "United Airlines (Star Alliance) and Air France (SkyTeam) operate nonstop flights from Washington Dulles to Paris Charles de Gaulle. No oneworld carrier flies this route nonstop, and neither of the operating airlines is unaffiliated.",
        "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 Washington?",
        "answer": "At Washington Dulles, the best lounge options when departing internationally include the Virgin Atlantic Clubhouse and the Air France/KLM Lounge in Concourse A, plus the Turkish Airlines Lounge in Concourse B. The Virgin Atlantic Clubhouse offers a stylish bar and à la carte dining, accessible to Upper Class passengers and elite members. The Air France/KLM Lounge features a self-serve buffet and shower suites, open to business-class travelers and SkyTeam Elite Plus members; note it may restrict access during peak afternoon hours. The Turkish Airlines Lounge provides hot meals and a relaxation area for business-class passengers and Star Alliance Gold members. Additionally, the Capital One Lounge near the TSA checkpoints is open to eligible cardholders and offers fresh, locally inspired food and grab-and-go options.",
        "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://prioritypass.com/en-GB/lounges/united-states-of-america/washington-dulles-international",
            "title": "Washington Dulles International Airport IAD Lounges - IAD Airport Guide and lounges.  | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://americanexpress.com/en-th/travel/lounges/the-platinum-card/IAD",
            "title": "American Express Lounges at Washington Dulles International Airport | Amex TH",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://www.flydulles.com/travel-information/services-amenities/airport-lounges/capital-one-lounge-iad",
            "title": "Capital One Lounge - IAD | flydulles.com",
            "time_published": "2022-03-01T00:00:00Z"
          },
          {
            "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"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Washington to Paris?",
        "answer": "Baggage allowance on Washington–Paris flights depends on the airline and fare class. Basic Economy tickets are restrictive and may not include a checked bag, while standard international economy fares usually include one checked bag and a carry‑on. Premium cabins offer more generous allowances."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Washington to Paris?",
        "answer": "Flights from Washington Dulles to Paris typically offer Economy, Premium Economy, and flat-bed Business class."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies differ by carrier and fare class; flexible, premium, and elite tickets often permit same‑day changes or standby, while basic economy rarely does."
      }
    }
  }
}