{"response": {"Key": "ATL-LIS", "orig": {"code": "ATL", "type": "airport", "city": "Atlanta", "fullCity": "Atlanta, Georgia", "airport": "Hartsfield Jackson 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 Atlanta to Lisbon?", "answer": "There are no nonstop flights from Atlanta to Lisbon. The quickest one-stop routings take around 11 to 12 hours total, with the shortest connections typically routing through the US East Coast — for example via Boston on Delta (about 11h 20m), Philadelphia on American (about 11h 15m), or Newark on United (about 11h 30m).", "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 Lisbon?", "answer": "Lisbon Airport (LIS) is about 7 km north of the city center. The Metro's red line (Vermelha) is the fastest and most-used option, reaching downtown in roughly 20 minutes. Aerobus shuttles run two routes to the city center every 20–25 minutes, taking 20–40 minutes; they cost €4 for a 24-hour pass. Public buses (lines 5, 22, 44, 45, 83) are the cheapest option but slower. Taxis are available at both terminals with a surcharge from the airport, and ride-shares like Uber operate too. Car rentals are on-site, though driving in central Lisbon is often impractical.", "toolsUsed": ["article_lookup"], "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 Atlanta to Lisbon?", "answer": "The cheapest months to fly from Atlanta to Lisbon are November (average $787) and October ($825), while June is the most expensive month (average $1332). The low season runs from October through April, with prices climbing into the high season from May through August.", "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 Atlanta to Lisbon?", "answer": "For flights from Atlanta to Lisbon, the best fares are typically found when booking 11 to 14 weeks before departure, with an average price of $926 and a low of $909 at 95 days out. For peak summer travel (June–August) and holiday periods, it's wise to book even earlier — ideally 4–5 months ahead — as prices tend to rise and availability tightens.", "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 Atlanta to Lisbon?", "answer": "No nonstop red-eye flights operate from Atlanta to Lisbon, but connecting itineraries whose long leg is an overnight flight are available. For example, Delta offers a late-evening departure from Atlanta to Amsterdam (departing 7:50 PM, arriving 10:30 AM) with a connection to KLM, and Air France has an Atlanta–Paris overnight leg (departing 8:05 PM, arriving 10:35 AM) connecting onward to Lisbon — both arrivals land in the morning hours, so they arrive the next morning. Other one-stop red‑eye options route through US or Canadian gateways like New York (JFK), Boston, Philadelphia, Washington–Dulles, Toronto, and Montreal on carriers including United, Delta, American, Air Canada, and TAP.", "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 Atlanta and Lisbon?", "answer": "Common layover cities include Lisbon-bound flights connecting through Madrid, Barcelona, Paris, or London. These hubs offer broad connections, efficient transfers, and visa‑free transit for many nationalities, keeping total travel time competitive."}, "q10": {"question": "Which months have the best weather for traveling to Lisbon?", "answer": "May to June and September to early October offer warm, sunny days and fewer tourists than the summer peak."}, "q11": {"question": "What documents should I bring with me to the airport when flying from Atlanta to Lisbon?", "answer": "Bring a passport valid for at least three months beyond your stay, a visa or ETIAS authorization if required, proof of onward travel and funds, a payment method for baggage, and any necessary vaccination certificates."}, "q12": {"question": "Which airport should I use in Lisbon?", "answer": "Lisbon has one main airport, Humberto Delgado Airport, located about 7 km from the city centre and well connected by metro and bus."}, "q13": {"question": "How do I get to Hartsfield Jackson Intl Airport from the city center?", "answer": "The quickest and most popular way to reach Hartsfield‑Jackson from downtown Atlanta is MARTA’s Red or Gold rail line, which takes about 20 minutes and costs a few dollars. Rideshare services like Uber and Lyft offer door‑to‑terminal convenience and are widely used, while taxis are available but generally more expensive. Shared‑ride shuttle vans provide a middle‑ground option with scheduled service to downtown for a moderate per‑person fee. Driving yourself is possible, but parking at the airport adds cost and the trip can take longer during peak traffic.", "toolsUsed": ["article_lookup"], "references": [{"url": "https://atl.com/ground-transportation", "title": "Ground Transportation - The official website of Hartsfield-Jackson Atlanta International Airport", "favicon": "https://www.atl.com/wp-content/uploads/2023/08/cropped-HJ_plane_Red-1000-180x180.jpg", "time_published": "2025-08-22T21:08:34Z"}, {"url": "https://www.atl.com/maps-3/", "title": "Terminal Maps - The official website of Hartsfield-Jackson Atlanta International Airport", "favicon": "https://www.atl.com/wp-content/uploads/2023/08/cropped-HJ_plane_Red-1000-180x180.jpg", "time_published": "2022-01-25T20:26:21Z"}, {"url": "https://en.wikipedia.org/wiki/Airport%20station%20%28MARTA%29", "title": "Airport station (MARTA)", "time_published": "2026-03-29T17:37:22Z"}, {"url": "https://en.wikipedia.org/wiki/Airport_station_(MARTA)", "title": "Airport station (MARTA)", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2026-06-05T09:05:51Z"}, {"url": "https://www.fly.faa.gov/fly/flyfaa/flyfaaindex?ARPT=ATL&p=1", "title": "Hartsfield-Jackson Atlanta International Airport"}]}, "q14": {"question": "Are there hotels or sleeping facilities at Lisbon airport?", "answer": "Lisbon Airport does not have on-site hotels, capsule hotels, or sleeping pods inside the terminals, but there are several nearby hotels connected by shuttle. The Meliá Lisboa Aeroporto is a short walk from Terminal 1, while other options like the TRYP Lisboa Aeroporto Hotel offer free shuttle service. For a quieter rest inside, Terminal 1 has some benches and couches near the food court and Gates 16 and 40–50, though security may check tickets overnight.", "toolsUsed": ["article_lookup"], "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 (Lisbon) has currency exchange offices in its single terminal, including both arrivals and departures areas. There is a chapel available for prayer and reflection. Free Wi‑Fi is provided throughout the terminal.", "toolsUsed": ["article_lookup"], "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 Atlanta to Lisbon?", "answer": "There is no nonstop service from Atlanta to Lisbon, so all flights connect. On the long transatlantic leg the most common aircraft are the Boeing 777 (especially via London Heathrow on British Airways), the Boeing 787-9 (via Philadelphia, Frankfurt, or Istanbul), and the Airbus A330-900neo (via Boston or New York on Delta). The exact aircraft can vary by day and airline, and while Wi‑Fi and seatback entertainment are widely available on these widebody jets, the experience differs by carrier.", "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 Atlanta?", "answer": "At Hartsfield-Jackson Atlanta International Airport, you'll find several well-regarded lounge options. Delta Air Lines, whose largest hub is here, operates nine Delta Sky Clubs across every concourse, with the standout location at Gate D18 in Concourse D offering over 500 seats, Southern-inspired cuisine, and private phone booths. American Express cardholders can access the Centurion Lounge in Concourse E, known for its chef-driven complimentary food and craft cocktails. For independent access, The Club ATL in Concourse F welcomes Priority Pass members and day-pass guests, providing a comfortable space to relax or work. Additionally, Minute Suites locations in Concourses B, E, and F offer private sleep pods for napping or working, available to Priority Pass members or for a fee.", "toolsUsed": ["article_lookup"], "references": [{"url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/ATL", "title": "American Express Lounges at Hartsfield–Jackson Atlanta International Airport | Amex US", "time_published": "2026-05-02T00:00:00Z"}, {"url": "https://www.delta.com/us/en/airports/united-states/atlanta-sky-club-airport-map", "title": "Hartsfield Atlanta (ATL) Airport Map & Lounges | Delta Air Lines", "time_published": "2023-01-01T00:00:00Z"}, {"url": "https://prioritypass.com/lounges/usa/atlanta-ga-international", "title": "Hartsfield–jackson Atlanta International Airport ATL Lounges - ATL Airport Guide and lounges. | Priority Pass", "favicon": "https://prioritypass.com/icon.png?a4ff481221414a5c", "time_published": "2024-11-05T16:20:09Z"}, {"url": "https://americanexpress.com/en-us/travel/lounges/delta-reserve/ATL", "title": "American Express Lounges at Hartsfield–Jackson Atlanta International Airport | Amex US", "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"}, {"url": "https://prioritypass.com/lounges/usa/atlanta-ga-international/atl11-minute-suites", "title": "Hartsfield–jackson Atlanta International Airport ATL Lounges - ATL Airport Guide and lounges.  | Priority Pass", "time_published": "2024-11-05T00:00:00Z"}]}, "q21": {"question": "What is the baggage allowance on this route from Atlanta to Lisbon?", "answer": "Baggage rules on flights from Atlanta to Lisbon depend on the airline and fare type. Basic Economy tickets are the most restrictive, often excluding a free checked bag. Standard international economy fares typically include one checked bag and a carry‑on, while premium cabins offer more generous allowances."}, "q22": {"question": "What cabin and seat options are typical from Atlanta to Lisbon?", "answer": "Flights from Atlanta to Lisbon typically offer Economy, Premium Economy, and flat-bed Business class on connecting carriers, with Delta providing Economy and lay-flat Delta One suites."}, "q23": {"question": "Are same‑day changes or standby possible on this route?", "answer": "Same‑day changes and standby depend on the airline and fare class; flexible and premium tickets typically offer these options, while Basic Economy generally does not."}}}}