{"response": {"Key": "DFW-LIS", "orig": {"code": "DFW", "type": "airport", "city": "Dallas", "fullCity": "Dallas, Texas", "airport": "Dallas Fort Worth Intl Airport"}, "dest": {"code": "LIS", "type": "airport", "city": "Lisbon", "fullCity": "Lisbon, Portugal", "airport": "Humberto Delgado Airport"}, "faq": {"q1": {"question": "Are there any direct flights from Dallas to Lisbon?", "answer": "There are no nonstop flights from Dallas–Fort Worth to Lisbon. The shortest one‑stop routings typically connect via Madrid on Iberia (about 12½ hours total) or via Philadelphia on American (around 11½ hours), with most itineraries taking roughly 15 to 16 hours. Fares start around $718 round‑trip, and the cheapest carriers by median price are United and Air Canada, both near $1,035–$1,080.", "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. 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"]}, "q3": {"question": "What are the ground transportation options in Lisbon?", "answer": "From Lisbon Airport, the metro (red line) reaches the city center in about 20 minutes and is the most-used option; a single ticket costs €1.50–€2.00 and the station is right at the terminal. Taxis and ride-shares (Uber, Bolt) are available 24/7, take roughly 15 minutes, and cost around €10–€20, making them the fastest door-to-door choice. The Aerobus shuttle (lines 1 and 2) also runs to central stops every 20–25 minutes for €4.00 (24-hour pass). Several public bus routes (5, 22, 44, 45, 83) serve the airport, but they are slower and less convenient for most visitors. There is no direct train from the terminal, but nearby stations (e.g., Gare do Oriente) can be reached by taxi or metro for regional rail connections; car rental is available at the airport but rarely needed for city-center trips.", "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)"}]}, "q4": {"question": "When is the cheapest time to fly from Dallas to Lisbon?", "answer": "The cheapest months to fly from Dallas to Lisbon are April, November, and October, with average fares around $804, $806, and $831 respectively. The most expensive period is late spring through early summer — May, June, and July — where average prices climb to $989–$1053.", "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 Dallas to Lisbon?", "answer": "For flights from Dallas to Lisbon, the best fares typically appear when booking 10 to 13 weeks ahead, with an average price around $856. The absolute lowest single-day fare observed was $839 at 180 days out, but prices rise sharply closer to departure and during peak summer demand.", "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 Dallas to Lisbon?", "answer": "No nonstop red-eyes operate from Dallas to Lisbon, but connecting one-stop itineraries with an overnight long leg are available. The most direct overnight options route through Madrid on American Airlines (departing Dallas at 4:45 PM, arriving Madrid at 9:05 AM, with a short Iberia connection), through London Heathrow on British Airways (departing 7:40 PM, arriving 10:55 AM), or through Frankfurt on Lufthansa (departing 4:00 PM, arriving 8:55 AM); other connections via Philadelphia, Boston, Toronto, Washington Dulles, Newark, and New York JFK also exist with overnight transatlantic legs departing between roughly 4 PM and 11 PM and arriving in Lisbon between roughly 8:20 AM and 10:45 AM 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 Dallas to Lisbon?", "answer": "There are no nonstop flights from Dallas/Fort Worth (DFW) to Lisbon (LIS). American Airlines and Iberia connect via Madrid (MAD) and Philadelphia (PHL) about 13 times daily combined, with additional one-stop options on British Airways via London Heathrow, Delta via Boston, United via Newark and Washington Dulles, Air Canada via Toronto and Montreal, and Lufthansa via Frankfurt, each operating up to three daily connections. Turkish Airlines also offers a single daily routing via Istanbul. No per-carrier fares are available for this route.", "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 Dallas and Lisbon?", "answer": "Common layover cities include Madrid, London, Paris, and Frankfurt. Madrid often provides the most direct routing, while London, Paris, and Frankfurt offer extensive onward connections and efficient transfer processes."}, "q10": {"question": "Which months have the best weather for traveling to Lisbon?", "answer": "April to June and September to October offer mild, sunny weather and fewer tourists than summer."}, "q11": {"question": "What documents should I bring with me to the airport when flying from Dallas to Lisbon?", "answer": "Bring a passport valid for at least three months beyond your stay, proof of onward or return travel, and any required visa or ETIAS authorization. Have a payment method for baggage fees and check if vaccination certificates are needed."}, "q12": {"question": "Which airport should I use in Lisbon?", "answer": "Lisbon has one airport, Humberto Delgado Airport, located just 7 km from the city centre, making it the only choice for all flights."}, "q13": {"question": "How do I get to Dallas Fort Worth Intl Airport from the city center?", "answer": "From downtown Dallas, you can reach DFW Airport by taking the DART Orange Line light rail directly to Terminal A, which is the most popular and cost-effective public transit option. Ride-share services and taxis offer faster, door-to-door convenience from anywhere in the city, while driving yourself involves paid parking in remote or terminal garages. Trinity Railway Express also connects downtown Dallas to CentrePort/DFW station, where a free shuttle bus, the TRE Link, takes you to Terminal B.", "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"}]}, "q14": {"question": "Are there hotels or sleeping facilities at Lisbon airport?", "answer": "Lisbon Airport (LIS) does not have on-site hotels, capsule hotels, or sleeping pods inside the terminals, but there are several hotels nearby, including a Meliá Lisboa Aeroporto directly opposite Terminal 1 reachable on foot and a TRYP Lisboa Aeroporto a short drive away. Some nearby hotels offer shuttle services, and the airport’s free 24/7 shuttle connects Terminals 1 and 2 for those with connecting flights. For uninterrupted sleep, the landside areas of Terminal 1 have some couches and cushioned benches, though they can fill up quickly.", "toolsUsed": [], "references": [{"url": "https://www.sleepinginairports.net/guides/lisbon-airport-guide.htm", "title": "Lisbon Airport Guide (LIS) - 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": "2018-09-02T00:00:05Z"}, {"url": "https://www.sleepinginairports.net/hotels/lisbon-airport-hotels.htm", "title": "Lisbon Airport Guide (LIS) - Sleeping in Airports", "time_published": "2026-04-13T18:11:40Z"}, {"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_facilities.html", "title": "Lisbon Portela Airport (LIS) Facilities, Info: Services at Airports in Lisbon Area, Portugal", "time_published": "2016-03-03T00:00:00Z"}, {"url": "https://en.wikipedia.org/wiki/Lisbon_Airport", "title": "Lisbon Airport", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2026-07-20T16:51:21Z"}, {"url": "https://en.wikipedia.org/wiki/Lisbon%20Airport", "title": "Lisbon Airport", "time_published": "2026-04-30T23:41:16Z"}]}, "q15": {"question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Humberto Delgado Airport?", "answer": "Humberto Delgado Airport offers currency exchange offices and ATMs throughout the terminal, both landside and airside. There is a multi-faith prayer room located in Terminal 1, on the departures level near the food court. Free unlimited Wi‑Fi is available across all areas of the airport.", "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_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://en.wikipedia.org/wiki/Lisbon_Airport", "title": "Lisbon Airport", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2026-07-20T16:51:21Z"}, {"url": "https://www.lisbon-airport.net/", "title": "Lisbon Airport (LIS)"}, {"url": "https://lisbonairport.net", "title": "Lisbon Airport | Guide to Lisbon Airport (LIS)"}]}, "q17": {"question": "What aircraft are typically used on flights from Dallas to Lisbon?", "answer": "There is no nonstop service from Dallas/Fort Worth to Lisbon. On typical connecting itineraries the long-haul leg is most often flown by a Boeing 787-9, Airbus A330-300, Boeing 777-200, or Airbus A330, with the exact aircraft varying by airline and day; American, Iberia, and British Airways are the most common carriers. The shorter connecting leg is generally a narrow-body Airbus A320-family or Boeing 737, though regional jets appear on some connections through Madrid. Wi-Fi and seatback entertainment are widely available on these long-haul aircraft, but specifics depend on the airline and the particular plane operating that day.", "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 Dallas to Lisbon?", "answer": "Flights from Dallas to Lisbon are served by oneworld (via American Airlines, British Airways, Iberia, or Finnair), Star Alliance (via United, Air Canada, Lufthansa, Turkish Airlines, TAP Air Portugal, or Brussels Airlines), and SkyTeam (via Delta). All major carriers on this route belong to an alliance; there are no unaligned operators like JetBlue or Emirates.", "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 Dallas?", "answer": "At Dallas/Fort Worth International Airport (DFW), Terminal D offers several lounge options for international departures to Lisbon. The American Express Centurion Lounge near gate D12 is open from 5:30 a.m. to 10 p.m. and provides complimentary access to Platinum Card and Centurion members, featuring locally inspired cuisine, a full premium bar, spa therapies, and shower suites. The Club DFW near gate D27 on the mezzanine level is accessible via Priority Pass membership or a day pass, with distinct zones for privacy, dining, productivity, and relaxation, plus shower facilities. Additionally, the Plaza Premium Lounge in Terminal D is available from 7 a.m. to 11 p.m., offering a restaurant voucher, sleep pods, and spa experiences.", "toolsUsed": [], "references": [{"url": "https://prioritypass.com/lounges/usa/dallas-tx---dfw-international", "title": "Dallas/Fort Worth International Airport DFW Lounges - DFW Airport Guide and lounges.  | Priority Pass", "time_published": "2024-11-05T00:00:00Z"}, {"url": "https://www.prioritypass.com/airport-guides/dallas-tx-dfw-international/terminal-d", "title": "Dallas TX - DFW International DFW Terminal D - Lounges and info. | Priority Pass", "time_published": "2026-01-01T00:00:00Z"}, {"url": "http://www.americanexpress.com/en-us/travel/lounges/the-platinum-card/DFW/The-Club-DFW-Terminal-D-rlk6LeSCI0/", "title": "The Club DFW at Dallas-Fort Worth International Airport | Amex US", "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"}, {"url": "https://americanexpress.com/en-us/travel/lounges/delta-reserve/DFW", "title": "American Express Lounges at Dallas-Fort Worth International Airport | Amex US", "time_published": "2026-05-01T00:00:00Z"}, {"url": "https://www.dfwairport.com/dfwnewsroom/archivednews/two-new-lounges-mean-more-options-for-dfw-customers/", "title": "DFW International Airport | Official Website", "time_published": "2018-10-11T00:00:00Z"}]}, "q21": {"question": "What is the baggage allowance on this route from Dallas to Lisbon?", "answer": "Baggage rules depend on the airline and fare type. Basic economy often excludes a checked bag, while standard international economy typically includes one free checked bag and a carry‑on. Premium cabins offer higher allowances."}, "q22": {"question": "What cabin and seat options are typical from Dallas to Lisbon?", "answer": "Flights from Dallas to Lisbon usually offer Economy and flat‑bed Business class, with Premium Economy available on select airlines."}, "q23": {"question": "Are same‑day changes or standby possible on this route?", "answer": "Policies depend on the airline and fare class; premium cabins and flexible tickets often allow same‑day changes or standby, while basic economy typically does not."}}}}