{
  "response": {
    "Key": "DFW-LOS",
    "orig": {
      "code": "DFW",
      "type": "airport",
      "city": "Dallas",
      "fullCity": "Dallas, Texas",
      "airport": "Dallas Fort Worth Intl Airport"
    },
    "dest": {
      "code": "LOS",
      "type": "airport",
      "city": "Lagos",
      "fullCity": "Lagos, Nigeria",
      "airport": "Murtala Muhammed Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Dallas to Lagos?",
        "answer": "The flight from Dallas to Lagos is about 6,570 miles. Since there is no scheduled nonstop service on this route, the journey requires a connection, with a typical total travel time of approximately 16 to 20 hours depending on layover.",
        "methodology": "Flight times and distances come 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). The typical flight time is the median scheduled block time across all carriers on the route, computed the same way in both directions so the difference reflects prevailing winds rather than any change in method. Distance is the great-circle distance between the two airports, so the actual flown track is typically 2-5% longer.",
        "toolsUsed": [
          "flight_schedule"
        ]
      },
      "q2": {
        "question": "Are there visa requirements to travel from Dallas to Lagos?",
        "answer": "For United States citizens, a visa is required to travel from Dallas to Lagos, Nigeria. Travelers must obtain an eVisa online before departure, which permits a stay of up to 30 days.\n\nThis is general guidance to help you plan, not official immigration advice — entry rules can change and can depend on your nationality and circumstances, so please confirm the current requirements with the relevant embassy or official government source before you travel.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/Visa_policy_of_Nigeria",
            "title": "Visa policy of Nigeria",
            "favicon": "https://en.wikipedia.org/static/favicon/wikipedia.ico"
          }
        ],
        "preopenedReferences": true,
        "stageOnly": true
      },
      "q3": {
        "question": "What are the ground transportation options in Lagos?",
        "answer": "From Murtala Muhammed International Airport, ground transportation into Lagos city center includes taxis, ride-hailing services, and a developing rail and bus rapid transit network. Taxis and ride-hailing apps like Uber and Bolt are the most commonly used and generally the fastest options, though traffic congestion can make travel times unpredictable. The Lagos Rail Mass Transit Blue and Red Lines now provide a reliable rail link, with the Blue Line connecting Marina to Mile 2 and the Red Line serving areas like Agbado and Oyingbo, but airport rail access is still being expanded. Car rentals are available but less popular for visitors due to driving conditions. Overall, ride-hailing is the most-used and often fastest door-to-door choice, while rail is emerging as a dependable mass-transit alternative.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/Transport%20in%20Lagos",
            "title": "Transport in Lagos",
            "time_published": "2026-03-26T03:33:40Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Lagos_Rail_Mass_Transit",
            "title": "Lagos Rail Mass Transit",
            "time_published": "2026-07-27T23:28:55Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Murtala_Muhammed_Airport_Two",
            "title": "Murtala Muhammed International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-07T20:30:22Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Murtala_Muhammed_International_Airport",
            "title": "Murtala Muhammed International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-08-22T22:35:42Z"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Dallas to Lagos?",
        "answer": "Average fares from Dallas to Lagos bottom out around $840 in late January, which is the cheapest stretch of the year for this route. The cheapest months overall are January, February, and September, with average fares of $873, $879, and $882 respectively. The most expensive period is late December, when average fares climb to $1139.",
        "methodology": "Seasonal fares come from Priceline's own air booking-summary archive, analysed in-house and refreshed monthly. For each day of the year we take a representative round-trip fare, a blend of the 25th-percentile and average ticket price over the route's bookings, and smooth the series into a seasonal curve; the half-month low and high and the monthly figures quoted here are averages of that curve. Thin and international routes borrow their seasonal shape from the nearest busy routes, with the price level anchored to the route's own bookings.",
        "toolsUsed": [
          "seasonal_prices"
        ]
      },
      "q5": {
        "question": "How far in advance should I book tickets from Dallas to Lagos?",
        "answer": "For flights from Dallas to Lagos, the best fares are typically found when booking 3 to 6 weeks before departure, with the absolute cheapest single day around 30 days out at about $896. Booking much earlier (e.g. 180 days ahead) tends to cost more, around $1,427, and last-minute bookings within a week or two also run higher. For summer and holiday periods, demand pushes prices up, so it's wise to book toward the earlier end of that 3-6 week window or even a bit sooner to lock in a reasonable fare.",
        "methodology": "Booking-window guidance comes from the same monthly in-house analysis of Priceline's own air booking-summary archive. We aggregate the route's bookings by how many days before departure they were made, from about 180 days out to the day of travel, smooth the curve, and highlight the stretch of lead times with the lowest average fare. Thin and international routes borrow the curve shape from the nearest busy routes, anchored to the route's own price level. It reflects current fares and is refreshed monthly.",
        "toolsUsed": [
          "booking_timing"
        ]
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Dallas to Lagos?",
        "answer": "No nonstop red‑eye flights operate from Dallas–Fort Worth to Lagos, but connecting itineraries with an overnight long leg are available — for example, Lufthansa via Frankfurt departs DFW at 4:00 PM and arrives at FRA at 8:55 AM, then connects onward to LOS with about a 2 h 55 m layover. The long leg is the overnight segment; the arrival into Frankfurt is in the morning hours.",
        "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 Lagos?",
        "answer": "There is no nonstop service between Dallas/Fort Worth and Lagos; the route is typically flown with one stop. The main connecting routings are American Airlines via London Heathrow (operated with British Airways on the second leg), Qatar Airways via Doha, and Turkish Airlines via Istanbul. American's routing appears most frequently, with roughly four daily connection options, while Turkish Airlines offers about one daily option.",
        "methodology": "Airlines and weekly frequencies come 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 typical fare is shown for a carrier, it is the median of 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 Lagos?",
        "answer": "Common layover cities include Atlanta, Amsterdam, London, and Paris. Atlanta offers the most one-stop options from Dallas, while the European hubs provide efficient connections and visa-free transit for many travelers, keeping total travel time competitive."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Lagos?",
        "answer": "November to January offers the most comfortable weather with lower humidity and less rain, and crowds are thinner outside major holidays."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Dallas to Lagos?",
        "answer": "Bring a passport valid for at least six months, a Nigerian visa, proof of yellow fever vaccination, evidence of onward or return travel, and a payment method for baggage fees."
      },
      "q12": {
        "question": "Which airport should I use in Lagos?",
        "answer": "Lagos has only one commercial airport, Murtala Muhammed International Airport, which serves all international and domestic flights."
      },
      "q13": {
        "question": "How do I get to Dallas Fort Worth Intl Airport from the city center?",
        "answer": "From downtown Dallas, the DART Orange Line light rail runs directly to DFW Terminal A, while the Silver Line connects Plano and northern suburbs to Terminal B; from downtown Fort Worth, TEXRail reaches Terminal B, and the Trinity Railway Express links both cities to the CentrePort/DFW Airport Station with a shuttle to the terminals. Ride-share services like Uber and Lyft, taxis, and private shuttles provide door-to-door convenience and are generally the most popular choice for travelers with luggage, though they cost more than rail. Driving yourself is also common, with on-airport parking garages and lots available (prebooking can save up to 50%), and the airport is easily reached via major highways. Public transit is the most economical option, while ride-share or taxi is typically fastest depending on traffic.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://dfwairport.com/explore/transportation/publictransit",
            "title": "DFW International Airport | Public Transit",
            "favicon": "https://dfwairport.com/apple-touch-icon.png"
          },
          {
            "url": "https://dfwairport.com/explore/transportation",
            "title": "Airport Ground Transportation | DFW Airport",
            "favicon": "https://dfwairport.com/apple-touch-icon.png"
          },
          {
            "url": "https://dfwairport.com/explore/plan/connect",
            "title": "DFW International Airport | Connect/Transfer at DFW",
            "favicon": "https://dfwairport.com/apple-touch-icon.png"
          },
          {
            "url": "https://dfwairport.com/explore/transportation/rentalcars",
            "title": "DFW International Airport | Rent a Car at DFW",
            "favicon": "https://dfwairport.com/apple-touch-icon.png"
          },
          {
            "url": "https://www.dfwairport.com/",
            "title": "Welcome to Dallas Fort Worth International Airport",
            "favicon": "https://www.dfwairport.com/apple-touch-icon.png",
            "time_published": "2026-09-15T00:00:00Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Lagos airport?",
        "answer": "Murtala Muhammed International Airport has no directly connected or on-site hotel. The closest option is the Legend Hotel Lagos Airport, Curio Collection by Hilton, located across from the international terminal, but it does not offer a shuttle. Sleeping options at the airport are otherwise limited, and nearby hotels generally require shuttle service or ground transport.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://all.accor.com/a/ko/destination/place/hotels-murtala-muhammed-international-airport-ci473.html",
            "title": "무르탈라모하메드 국제공항(LOS) 주변 호텔 – all.com에서 예약하세요",
            "time_published": "2026-05-01T00:00:00Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/lossi-sheraton-lagos-hotel/overview/?EM=DNM_SHERATONLAGOS.COM",
            "title": "Sheraton Lagos Hotel - Near Murtala Muhammed International Airport",
            "time_published": "2025-02-19T00:00:00Z"
          },
          {
            "url": "https://www.sleepinginairports.net/guides/lagos-airport-guide.htm",
            "title": "Lagos Airport Guide (LOS) - 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": "2018-08-08T20:26:58Z"
          },
          {
            "url": "https://all.accor.com/a/pt/destination/place/hotels-murtala-muhammed-international-airport-ci473.html",
            "title": "Hotéis perto de Aéroport International Murtala Muhammed : reserve em all.accor.com",
            "time_published": "2025-11-19T00:00:00Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/losfp-four-points-lagos/overview/",
            "title": "Four Points by Sheraton Lagos - Hotel with Pool & Fitness Center",
            "time_published": "2025-02-19T00:00:00Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/lossi-sheraton-lagos-hotel/overview/?scid=f2ae0541-1279-4f24-b197-a979c79310b0",
            "title": "Sheraton Lagos Hotel - Near Murtala Muhammed International Airport",
            "time_published": "2023-08-11T00:00:00Z"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Murtala Muhammed Intl Airport?",
        "answer": "Murtala Muhammed International Airport in Lagos offers currency exchange offices and prayer rooms, with free Wi-Fi available in certain areas of the terminal. Currency exchange can be found in both the international arrivals and departures areas, while prayer rooms and a mosque are located within the terminal complex. Wi-Fi access is provided in select lounges and public zones, though coverage can vary.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/Lagos_Murtala_Mohammed_International_Airport",
            "title": "Murtala Muhammed International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2004-11-13T09:32:29Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Murtala_Muhammed_International_Airport",
            "title": "Murtala Muhammed International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-08-22T22:35:42Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/MMA2",
            "title": "Murtala Muhammed International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-16T10:52:04Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Murtala_Muhammed_Airport_Two",
            "title": "Murtala Muhammed International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-07T20:30:22Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Mafoluku_Bus_Terminal",
            "title": "Mafoluku Bus Terminal",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-03-29T05:05:38Z"
          }
        ]
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Dallas and Lagos airports?",
        "answer": "Dallas/Fort Worth International Airport provides wheelchair accessible van service on demand 24 hours a day, accessible parking, and unisex accessible toilet rooms throughout the terminals, with an ADA coordinator available for assistance requests at (972) 973-5650. The GoodMaps app offers accessible wayfinding for gates, restrooms, and dining. At Murtala Muhammed International Airport, travelers should arrange mobility assistance through their airline at least 48 hours before the flight.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://dfwairport-prd-dfw-vip.dfwairport.com/accessibility/index.php/1000",
            "title": "DFW International Airport | Accessibility"
          },
          {
            "url": "https://www.dfwairport.com/explore/plan/assist/accessibility/",
            "title": "Airport Accessibility Services | DFW Airport",
            "favicon": "https://www.dfwairport.com/apple-touch-icon.png"
          },
          {
            "url": "https://dfwairport.com/dps/police",
            "title": "Airport Police | DFW Airport",
            "favicon": "https://dfwairport.com/apple-touch-icon.png"
          },
          {
            "url": "https://www.dfwairport.com/",
            "title": "Welcome to Dallas Fort Worth International Airport",
            "favicon": "https://www.dfwairport.com/apple-touch-icon.png",
            "time_published": "2026-09-15T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Dallas_Fort_Worth_International_Airport",
            "title": "Dallas Fort Worth International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-09-11T13:38:24Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Murtala_Muhammed_Airport_Two",
            "title": "Murtala Muhammed International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-07T20:30:22Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Murtala_Muhammed_International_Airport",
            "title": "Murtala Muhammed International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-08-22T22:35:42Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Lagos_Murtala_Mohammed_International_Airport",
            "title": "Murtala Muhammed International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2004-11-13T09:32:29Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/MMA2",
            "title": "Murtala Muhammed International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-16T10:52:04Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Dallas to Lagos?",
        "answer": "There is no nonstop service from Dallas to Lagos; all flights connect. American Airlines operates the most connecting itineraries, using Boeing 777-300ER and Boeing 787-9 on the long-haul leg via London Heathrow, with British Airways short-haul Boeing 787-10 or 787-9. Lufthansa connects via Frankfurt on Boeing 787-9, United via Washington Dulles on Boeing 787-8 with Airbus A320 or A319 feeders, Qatar Airways via Doha on Airbus A350-1000, and Air France via Paris on Airbus A350-900 with a Boeing 777-200 feeder.",
        "methodology": "Aircraft types come 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). For U.S. routes the type is grounded in the tail number that actually operated the flight; elsewhere it comes from the airline's filed equipment code. Where the source does not commit to a specific variant we name the aircraft family (for example Airbus A320 family) rather than guess, and where no reliable type is on file the aircraft is omitted rather than estimated. Types describe typical scheduled equipment and can vary with seasonal or day-of-week assignments and last-minute swaps.",
        "toolsUsed": [
          "route_aircraft"
        ]
      },
      "q18": {
        "question": "Which airline alliances serve flights from Dallas to Lagos?",
        "answer": "Star Alliance (via United, Lufthansa, Turkish Airlines, and Air Canada) and oneworld (via Qatar Airways, British Airways, and American Airlines) serve the Dallas–Lagos route; Emirates also flies it but belongs to no 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. 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. 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. 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": [
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          "route_options",
          "flight_schedule",
          "route_aircraft"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Dallas?",
        "answer": "When departing from Dallas/Fort Worth International Airport, travelers have access to more than 20 lounges and premium spaces across the airport, including five Admirals Club lounges, the Flagship Lounge, and Flagship First Dining. The American Express Centurion Lounge offers elevated dining, premium amenities, and comfortable workspaces overlooking Terminal D. The Capital One Lounge blends modern design with locally inspired food and premium beverages, while the Chase Sapphire Lounge by The Club combines locally inspired hospitality with thoughtfully designed spaces. DFW is also home to three Plaza Premium lounge experiences, including the first Plaza Premium First in the United States, and a private terminal experience through PS DFW for added privacy and personalized service.",
        "toolsUsed": [
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        ],
        "references": [
          {
            "url": "https://www.dfwairport.com/explore/lounges/",
            "title": "Lounges to relax and escape the hustle and bustle | DFW Airport",
            "favicon": "https://www.dfwairport.com/apple-touch-icon.png"
          },
          {
            "url": "https://www.dfwairport.com/",
            "title": "Welcome to Dallas Fort Worth International Airport",
            "favicon": "https://www.dfwairport.com/apple-touch-icon.png",
            "time_published": "2026-09-15T00:00:00Z"
          },
          {
            "url": "https://www.prioritypass.com/en-GB/lounges/united-states-of-america/dallas-fort-worth-international",
            "title": "Dallas/Fort Worth International Airport DFW Lounges - DFW Airport Guide and lounges. | Priority Pass",
            "favicon": "https://www.prioritypass.com/icon.png?a4ff481221414a5c"
          },
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/delta-reserve/DFW",
            "title": "American Express Lounges at Dallas-Fort Worth International Airport | Amex US",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "https://my.prioritypass.com/en-GB/lounges/united-states-of-america/dallas-fort-worth-international",
            "title": "Dallas/Fort Worth International Airport DFW Lounges - DFW Airport Guide and lounges. | Priority Pass",
            "favicon": "https://my.prioritypass.com/icon.png?icon.1k7202wk2zqql.png?dpl=cc035ab9-aab7-4c96-ab16-1cfc898e4f7f"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Dallas to Lagos?",
        "answer": "Allowance depends on the airline and fare class. Basic Economy tickets often exclude checked bags, while standard international economy usually includes one checked bag and a carry‑on. Premium cabins and higher fare classes offer more generous allowances."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Dallas to Lagos?",
        "answer": "Flights from Dallas to Lagos typically offer Economy and flat‑bed Business class; Premium Economy is occasionally available depending on the airline."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies differ by carrier and fare; fully flexible and business‑class tickets commonly allow same‑day changes or standby, while restricted economy fares rarely do."
      }
    }
  }
}