{"response": {"Key": "LIS-DFW", "orig": {"code": "LIS", "type": "airport", "city": "Lisbon", "fullCity": "Lisbon, Portugal", "airport": "Humberto Delgado Airport"}, "dest": {"code": "DFW", "type": "airport", "city": "Dallas", "fullCity": "Dallas, Texas", "airport": "Dallas Fort Worth Intl Airport"}, "faq": {"q0": {"question": "What is the typical flight duration from Lisbon to Dallas?", "answer": "The flight from Lisbon to Dallas covers about 4,740 miles. No nonstop service is scheduled on this route, so a connection is required; a typical one-stop journey takes approximately 13 to 16 hours total, depending on the layover.", "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 Lisbon to Dallas?", "answer": "There are no nonstop flights from Lisbon to Dallas. The shortest one-stop connections are via London Heathrow (LHR) on American Airlines (operated by British Airways on the first leg) at about 13 hours total, or via Madrid (MAD) on Iberia at roughly 13½ hours — both with a single layover under three hours. Other one-stop options route through Philadelphia, Frankfurt, Montreal, Toronto, Istanbul, Washington Dulles, Miami, or Newark, typically taking 14 to 18 hours depending on the connection.", "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 Dallas?", "answer": "Dallas/Fort Worth International Airport offers taxis, ride-share services, rental cars, and public transit. The DART Orange Line rail provides direct access to downtown Dallas from Terminal A, and TEXRail connects Terminal B to Fort Worth; the Trinity Railway Express also links both cities via a shuttle from CentrePort/DFW Airport station. Ride-share and taxis are readily available and often the fastest door-to-door options, while DART rail is the most used public transit route for reaching downtown Dallas.", "toolsUsed": [], "references": [{"url": "http://dfwairport.com/dfwnewsroom/dfw-is-ready-to-welcome-fifa-fans/", "title": "DFW International Airport | Official Website", "time_published": "2026-04-02T00:00:00Z"}, {"url": "https://www.dfwairport.com/explore/transportation/publictransit/?utm_source=google&utm_medium=organic", "title": "DFW International Airport | Public Transit", "time_published": "2022-05-25T00:00:00Z"}, {"url": "https://en.wikipedia.org/wiki/CentrePort%2FDFW%20Airport%20station", "title": "CentrePort/DFW Airport station", "time_published": "2025-12-07T14:04:09Z"}, {"url": "https://en.wikipedia.org/wiki/CentrePort/DFW_Airport_station", "title": "CentrePort/DFW Airport station", "time_published": "2026-05-10T08:51:35Z"}, {"url": "https://faa.gov/air_traffic/publications/atpubs/ntap_jan_31/SC17000.html", "title": "Texas. Prototype Runway Status Lights (RWSL) at Dallas/Fort Worth International Airport (DFW)", "favicon": "https://faa.gov/air_traffic/publications/atpubs/ntap_jan_31/assets/img/apple-touch-icon.png"}]}, "q4": {"question": "When is the cheapest time to fly from Lisbon to Dallas?", "answer": "The cheapest months to fly from Lisbon to Dallas are April, November, and October, with average fares around $804, $806, and $831, while the most expensive months are July, June, and May, with averages of $1053, $1050, and $989.", "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 Lisbon to Dallas?", "answer": "For flights from Lisbon to Dallas, the best fares are usually found when booking 10 to 13 weeks ahead, with an average price around $856. Booking exactly 180 days out can sometimes yield the lowest fare at $839, while waiting until 140 days before tends to be priciest at about $905. During summer and holiday periods, demand pushes prices higher across all booking windows, so aiming for the early side of that 10–13 week range is even more important.", "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 Lisbon to Dallas?", "answer": "No overnight (red-eye) flights are available from Lisbon to Dallas — neither nonstop nor connecting itineraries with a red-eye long leg operate on this route.", "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 Lisbon to Dallas?", "answer": "There is no nonstop service from Lisbon to Dallas. Common one-stop connections are offered by American Airlines (via London Heathrow or Philadelphia), Iberia (via Madrid), British Airways (via London Heathrow), Air Canada (via Toronto or Montreal), Lufthansa (via Frankfurt), United (via Washington Dulles or Newark), Turkish Airlines (via Istanbul), and TAP Air Portugal (via Miami). American Airlines via London Heathrow is the most frequent pattern, with around 13 daily connections, followed by Iberia via Madrid with about 10. Typical per-carrier fares aren't available for this route, so I can't provide median prices.", "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 Lisbon and Dallas?", "answer": "Common layover cities for this route include Madrid, London, Paris, and Philadelphia. Madrid offers the most direct routing with minimal added flight time. London and Paris provide extensive transatlantic networks and frequent onward flights. Philadelphia, as an American Airlines hub, enables efficient connections and U.S. pre‑clearance for smoother arrival in Dallas."}, "q10": {"question": "Which months have the best weather for traveling to Dallas?", "answer": "March to May and October to November offer pleasant temperatures and fewer visitors, avoiding summer heat and crowds."}, "q11": {"question": "What documents should I bring with me to the airport when flying from Lisbon to Dallas?", "answer": "Bring a passport valid for at least six months, an ESTA authorization, proof of COVID-19 vaccination if required, and a payment method for baggage. Carry evidence of onward or return travel."}, "q12": {"question": "Which airport should I use in Dallas?", "answer": "Dallas Fort Worth International is the primary airport for the region, serving as a major hub for American Airlines and offering extensive domestic and international connections. It is located roughly midway between Dallas and Fort Worth. Dallas Love Field is closer to downtown Dallas and primarily serves Southwest Airlines with domestic flights."}, "q13": {"question": "How do I get to Humberto Delgado Airport from the city center?", "answer": "From downtown Lisbon, the Aerobus shuttle (lines 1 and 2) is the most popular direct option, running every 20–25 minutes and taking about 20–40 minutes to reach Humberto Delgado Airport. Public buses (such as 5, 22, 44, 45, and 83) are cheaper but slower, while taxis and ride‑share services offer door‑to‑door convenience in around 15–20 minutes with a metered fare plus an airport surcharge. Driving and parking are possible but less common due to the airport’s central location and limited on‑site parking.", "toolsUsed": [], "references": [{"url": "http://lisbon-lis.airports-guides.com", "title": "Lisbon Portela Airport (LIS) Information: LIS Airport in Lisbon Area, Portugal"}, {"url": "http://www.lisbon-lis.airports-guides.com/lis_airport_transport.html", "title": "Lisbon Portela Airport (LIS) Travel, Transport: Travel at Airports in Lisbon Area, Portugal", "time_published": "2016-03-03T00:00:00Z"}, {"url": "https://www.lisbon-airport.net/", "title": "Lisbon Airport (LIS)"}, {"url": "https://lisbonairport.net/lisbon-airport-transfers/bus/", "title": "Getting to Lisbon Airport by Bus", "time_published": "2019-03-02T00:00:00Z"}, {"url": "https://lisbonairport.net", "title": "Lisbon Airport | Guide to Lisbon Airport (LIS)"}]}, "q14": {"question": "Are there hotels or sleeping facilities at Dallas airport?", "answer": "Dallas/Fort Worth International Airport (DFW) has the Grand Hyatt DFW located inside Terminal D, accessible from all terminals via the free Skylink train, and Minute Suites with daybeds are available in Terminals A and D. There are no capsule hotels or sleeping pods, but several nearby hotels like the Dallas/Fort Worth Airport Marriott and The Westin offer complimentary shuttle service.", "toolsUsed": [], "references": [{"url": "https://www.sleepinginairports.net/guides/dallas-fort-worth-airport-guide.htm", "title": "Dallas - Fort Worth Airport Guide (DFW) - 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": "2018-10-02T00:00:31Z"}, {"url": "https://www.marriott.com/en-us/hotels/dfwap-dallas-fort-worth-airport-marriott/overview/", "title": "Dallas/Fort Worth Airport Marriott - Near DFW International Airport", "time_published": "2025-02-19T00:00:00Z"}, {"url": "https://www.sleepinginairports.net/sleep-guide/sleeping-in-dallas-fort-worth-airport.htm", "title": "Sleeping in Dallas Fort Worth Airport", "time_published": "2024-10-05T00:00:00Z"}, {"url": "https://www.marriott.com/en-us/hotels/dfwwa-the-westin-dallas-fort-worth-airport/overview/?EM=DNM_WESTINDALLASFORTWORTHAIRPORT.COM", "title": "Hotel Near DFW Airport with Shuttle Service | The Westin", "time_published": "2025-02-19T00:00:00Z"}, {"url": "http://www.dfwairport.com/explore/plan/hotels/", "title": "Where to Stay Near the Airport | DFW Airport", "time_published": "2025-12-15T00:00:00Z"}, {"url": "https://www.marriott.com/en-us/hotels/dfwel-element-dallas-fort-worth-airport-north/overview/?EM=DNM_ELEMENTDFWNORTH.COM", "title": "Dallas Fort Worth Airport Hotel | Element Dallas Fort Worth Airport", "time_published": "2025-02-19T00:00:00Z"}]}, "q17": {"question": "What aircraft are typically used on flights from Lisbon to Dallas?", "answer": "There is no nonstop service from Lisbon to Dallas. On typical one-stop itineraries, the long-haul leg is most often operated by a Boeing 777-300ER (via London Heathrow, Toronto, or Istanbul), an Airbus A330-300 (via Madrid or Montreal), or a Boeing 787-9 (via Philadelphia or Istanbul). The Airbus A380 also appears on some London Heathrow connections. The exact aircraft varies by airline and day; Wi‑Fi and seatback entertainment are widely available on these long‑haul types.", "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 Lisbon to Dallas?", "answer": "Both oneworld and Star Alliance serve the Lisbon to Dallas route through connecting itineraries. oneworld is represented by American Airlines, British Airways, and Iberia; Star Alliance is represented by Lufthansa, Air Canada, Turkish Airlines, United, and TAP Air Portugal. No SkyTeam carriers appear among the connecting options, and JetBlue — which operates a short connecting leg on one itinerary — is not part of any 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.", "toolsUsed": ["route_airlines"]}, "q20": {"question": "What are the best airport lounge options when departing from Lisbon?", "answer": "At Lisbon Portela Airport (LIS), the main lounge available is the ANA Lounge Lisbon in Terminal 1, accessible after security near Gate 22 on Floor 6 for both Schengen and non-Schengen flights. It operates daily from 4:00 AM to 11:00 PM and offers complimentary alcoholic drinks (up to three), a smoking room, and a business center (fee applies). Access is available through Priority Pass membership, and eligible passengers on TAP Air Portugal or partner airlines may also enter with business class tickets or elite status.", "toolsUsed": [], "references": [{"url": "http://lisbon-lis.airports-guides.com", "title": "Lisbon Portela Airport (LIS) Information: LIS Airport in Lisbon Area, Portugal"}, {"url": "https://my.prioritypass.com/en-GB/lounges/portugal/lisbon-portela", "title": "Lisbon Airport LIS Lounges - LIS Airport Guide and lounges.  | Priority Pass", "time_published": "2024-11-05T00:00:00Z"}, {"url": "https://prioritypass.com/en-GB/lounges/portugal/lisbon-portela/lis6-ana-lounge-lisbon", "title": "ANA Lounge Lisbon LIS AIRPORT Terminal 1 Lisbon Portela | Priority Pass", "time_published": "2024-11-05T00:00:00Z"}, {"url": "http://www.lisbon-lis.airports-guides.com/lis_airport_airlines.html", "title": "Lisbon Portela Airport (LIS) Airlines and Terminals: Airlines at Airports in Lisbon Area, Portugal", "time_published": "2016-03-03T00:00:00Z"}, {"url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/LIS", "title": "American Express Lounges at Lisbon Portela Airport | Amex US", "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"}]}, "q21": {"question": "What is the baggage allowance on this route from Lisbon to Dallas?", "answer": "On Lisbon–Dallas flights, baggage rules differ by airline and fare type. Basic Economy tickets often exclude checked luggage, while standard international economy usually includes one checked bag and a carry‑on. Premium cabins provide higher allowances."}, "q22": {"question": "What cabin and seat options are typical from Lisbon to Dallas?", "answer": "Flights from Lisbon to Dallas generally offer Economy and flat-bed Business class, while Premium Economy is 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 premium cabin tickets often permit same‑day changes or standby, while Basic Economy typically does not."}}}}