{"response": {"Key": "DEN-PAR", "orig": {"code": "DEN", "type": "airport", "city": "Denver", "fullCity": "Denver, Colorado", "airport": "Denver Intl Airport"}, "dest": {"code": "PAR", "type": "airport", "city": "Paris", "fullCity": "Paris, France", "airport": "Charles de Gaulle Intl Airport"}, "faq": {"q0": {"question": "What is the typical flight duration from Denver to Paris?", "answer": "A nonstop flight from Denver to Paris is about 4,870 miles and takes about 9 hours and 30 minutes, operated by Air France. The return leg is longer at around 10 hours and 15 minutes, a difference of 45 minutes due to prevailing winds.", "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 Denver to Paris?", "answer": "Yes, there are direct nonstop flights from Denver to Paris. Air France operates the only nonstop service, flying from Denver to Paris Charles de Gaulle six times a week — Monday, Tuesday, Wednesday, Friday, Saturday, and Sunday — with a single daily departure around 5:40 PM. The flight takes approximately 9 hours 30 minutes eastbound.", "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": "At Paris Charles de Gaulle Airport, the RER B train is the most popular option, reaching central Paris in about 30 minutes. Taxis offer fixed fares and direct door-to-door service, while ride-shares (VTC) and buses, including the 9517 line, are also available. The CDG Express, a faster dedicated rail link to Gare de l'Est, is under construction and expected to open in March 2027. Car rentals are accessible via nearby highways, and shuttles connect to other airports and Disneyland Paris.", "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 Denver to Paris?", "answer": "The cheapest months to fly from Denver to Paris are October, September, April, and November, with average fares around $908–$950. The most expensive months are June, May, and December, averaging $1,179–$1,283.", "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.", "toolsUsed": ["seasonal_prices"]}, "q5": {"question": "How far in advance should I book tickets from Denver to Paris?", "answer": "For flights from Denver to Paris, the best fares typically appear when booking 8 to 11 weeks ahead, with an average around $998. The absolute cheapest single price was $989 at about 8 weeks out, while last-minute bookings can cost over $1,750. For summer or holiday travel, securing tickets a few weeks earlier within that 8-11 week window is advisable to lock in better prices before demand pushes fares higher.", "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.", "toolsUsed": ["booking_timing"]}, "q6": {"question": "Are overnight (red‑eye) flights available from Denver to Paris?", "answer": "No nonstop red-eye flights operate from Denver to Paris, but connecting itineraries with an overnight long leg are available through hubs including London (LHR) on British Airways, Munich (MUC) and Frankfurt (FRA) on Lufthansa, and Keflavik (KEF) on Icelandair. The Denver–London leg departs at 18:40 and arrives at 10:35 the next morning, the Denver–Munich leg departs at 16:15 and arrives at 10:00 the next morning, and the Denver–Frankfurt leg departs at 17:40 and arrives at 11:15 the next morning, while the Denver–Keflavik overnight options depart at 16:40 (arriving 06:00) and 20:10 (arriving 09:25).", "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 Denver to Paris?", "answer": "Air France operates the only nonstop service from Denver to Paris, flying six times a week to Charles de Gaulle Airport on all days except Thursday, with a late-afternoon departure around 5:40 PM. Typical per-carrier fares are not available for this route, so I cannot provide a median price. Other carriers may offer connecting itineraries, but Air France is the sole nonstop option.", "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 Denver and Paris?", "answer": "Common layover cities include Chicago O'Hare, New York JFK, Atlanta, and Dallas/Fort Worth, all 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 temperatures, blooming or autumn scenery, and fewer tourists than the summer peak."}, "q11": {"question": "What documents should I bring with me to the airport when flying from Denver to Paris?", "answer": "Bring a U.S. passport valid for at least three months beyond your intended stay, any required visa or ETIAS travel authorization, proof of onward or return travel, a payment method for baggage fees, and any vaccination or health documents currently mandated."}, "q12": {"question": "Which airport should I use in Paris?", "answer": "Charles de Gaulle is the main international gateway with extensive long‑haul routes and is well‑connected to central Paris. Orly is closer to the city centre and focuses on domestic and European flights, often with more low‑cost options."}, "q13": {"question": "How do I get to Denver Intl Airport from the city center?", "answer": "Getting from downtown Denver to Denver International Airport (DEN) is straightforward, with the A Line commuter train being the fastest and most popular option — it runs from Denver Union Station to the airport in about 37 minutes. Public buses operated by RTD also serve the airport, though they are slower and less frequent than the train. Ride‑share services (Uber/Lyft) and taxis are available for door‑to‑door convenience, typically taking 30–45 minutes depending on traffic, but they cost more than transit. Driving yourself and parking at DEN is possible, with various on‑airport lots ranging from economy to garage parking, but the train remains the most reliable and cost‑effective choice for most travelers.", "toolsUsed": [], "references": [{"url": "https://www.flydenver.com/parking-and-transportation/to-and-from/airport-transit-center/", "title": "Airport Transit Center | Denver International Airport", "time_published": "2026-02-24T17:09:34Z"}, {"url": "https://flydenver.com/connections/", "title": "Connections | Denver International Airport", "favicon": "https://flydenver.com/apple-touch-icon.png", "time_published": "2023-09-14T15:33:21Z"}, {"url": "https://en.wikipedia.org/wiki/Automated_Guideway_Transit_System_(Denver_International_Airport)", "title": "Automated Guideway Transit System (Denver International Airport)", "time_published": "2026-06-01T08:54:40Z"}, {"url": "https://en.wikipedia.org/wiki/Denver%20International%20Airport", "title": "Denver International Airport", "time_published": "2026-04-30T15:08:23Z"}, {"url": "https://www.faa.gov/?action=searchForAirport&airportcode=PSR", "title": "Federal Aviation Administration", "favicon": "https://www.faa.gov/themes/custom/faa/favicon.png", "time_published": "2026-07-17T12:00:00Z"}]}, "q14": {"question": "Are there hotels or sleeping facilities at Paris airport?", "answer": "Paris Charles de Gaulle Airport (CDG) has on-site hotels like the ibis Paris CDG Airport near Terminal 3, a 5-minute walk away, and the Courtyard by Marriott Paris Charles de Gaulle Central Airport, reachable via the free CDGVAL tram. There are no capsule hotels or sleeping pods, but the airport offers rest zones with reclining chairs and quiet areas. Other nearby hotels are connected by the CDGVAL 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, with interactive kiosks and terminal maps highlighting the service. Currency exchange offices and prayer rooms or chapels are not explicitly mentioned in the available information, so their availability and locations cannot be confirmed.", "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 Denver to Paris?", "answer": "There is no nonstop service between Denver and Paris, so all flights connect through a hub. On the long transatlantic leg, the most common aircraft are the Boeing 777-300ER (via Montréal, Atlanta, New York JFK, Los Angeles, and Toronto), the Airbus A350-900 (via Frankfurt, Detroit, Boston, and Atlanta), and the Boeing 777-200 (via Minneapolis, Detroit, Dallas/Fort Worth, and Charlotte). The Boeing 787 family also appears on several United connections (787-8, 787-9, 787-10 via Washington Dulles, Munich, and Chicago O'Hare), while the Airbus A380-800 is available through Munich on Lufthansa. The exact aircraft varies by day and airline, but these widebody types dominate the route, and most offer Wi‑Fi and seatback entertainment as standard on long‑haul international 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"]}, "q20": {"question": "What are the best airport lounge options when departing from Denver?", "answer": "At Denver International Airport, you'll find the Delta Sky Club in Concourse A (Main Terminal) and The Centurion Lounge in Concourse C. The Delta Sky Club is open to Delta One, SkyTeam Premium Cabin, and Sky Club members, offering premium food, beer and wine, and Wi-Fi. The Centurion Lounge accepts American Express Platinum and Centurion cardholders, providing complimentary food, cocktails, and a full bar. Both lounges are accessible up to three hours before departure, with no access for children under two in the Centurion Lounge.", "toolsUsed": [], "references": [{"url": "https://americanexpress.com/en-gb/travel/lounges/the-platinum-card/DEN", "title": "American Express Lounges at Denver International Airport | Amex GB", "time_published": "2026-05-03T00:00:00Z"}, {"url": "https://www.flydenver.com/", "title": "Denver International Airport | DEN", "favicon": "https://www.flydenver.com/apple-touch-icon.png", "time_published": "2026-06-02T21:34:27Z"}, {"url": "https://flydenver.com/at-the-airport", "title": "Exciting Things to Do at Denver International Airport", "time_published": "2026-02-18T15:39:31Z"}, {"url": "https://www.americanexpress.com/en-us/travel/lounges/the-centurion-card-idc-en/DEN/Delta-Sky-Club-Main-Terminal-Concourse-A-IgRTEiZDls/", "title": "Delta Sky Club at Denver International Airport | Amex US", "time_published": "2026-03-18T00:00:00Z"}, {"url": "https://carsandstays.delta.com/Denver-Hotels-Sleep-Inn-Suites-Denver-International-Airport.h23533743.Hotel-Information?categorySearch=any_option&chkin=2026-07-06&chkout=2026-07-07&destType=MARKET&destination=Denver%2C+CO%2C+United+States+of+America+%28DEN-All+Airports%29&latLong=39.74483000000001%2C-104.94829500000002&pwa_ts=1782175590171&referrerUrl=aHR0cHM6Ly9jYXJzYW5kc3RheXMuZGVsdGEuY29tL0hvdGVsLVNlYXJjaA%3D%3D&regionId=6139084&rfrr=HSR&rm1=a2&searchId=b9103c12-38ab-46f5-86a7-f3447411bdbe&selectedRatePlan=383244565&selectedRoomType=218717901&sort=RECOMMENDED&top_cur=USD&top_dp=126&useRewards=false&x_pwa=1", "title": "Sleep Inn & Suites Denver International Airport", "favicon": "https://carsandstays.delta.com/favicon.ico", "time_published": "2026-06-23T09:32:24Z"}]}, "q21": {"question": "What is the baggage allowance on this route from Denver to Paris?", "answer": "Baggage rules depend on the airline and fare class you book. Basic economy tickets on this route usually exclude a checked bag but include a carry‑on. Standard international economy fares typically include one checked bag and a carry‑on, while premium classes offer more."}, "q22": {"question": "What cabin and seat options are typical from Denver to Paris?", "answer": "Flights from Denver to Paris usually feature Economy, Premium Economy, and flat‑bed Business class, with First class available on select airlines."}, "q23": {"question": "Are same‑day changes or standby possible on this route?", "answer": "Policies vary by airline and fare; flexible and higher‑cabin tickets often allow same‑day changes or standby, while restrictive economy fares typically do not."}}}}