{
  "response": {
    "Key": "DEN-PHX",
    "orig": {
      "code": "DEN",
      "type": "airport",
      "city": "Denver",
      "fullCity": "Denver, Colorado",
      "airport": "Denver Intl Airport"
    },
    "dest": {
      "code": "PHX",
      "type": "airport",
      "city": "Phoenix",
      "fullCity": "Phoenix, Arizona",
      "airport": "Sky Harbor Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Denver to Phoenix?",
        "answer": "The flight from Denver to Phoenix covers about 602 miles and typically takes 1 hour 55 minutes nonstop. The return leg averages 1 hour 50 minutes, a slight difference of just five minutes, so the jet stream has little effect here.",
        "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"
        ]
      },
      "q1": {
        "question": "Are there any direct flights from Denver to Phoenix?",
        "answer": "Yes, there are plenty of non‑stop flights from Denver to Phoenix. Southwest, United, American, and Frontier all fly the route daily, with Southwest offering the most frequencies — roughly 250 flights a week across all carriers. Flights take about 1 hour 55 minutes on average, and you can find departures from early morning until late evening.",
        "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 Phoenix?",
        "answer": "Phoenix Sky Harbor International Airport offers several ground transportation options: a free automated PHX Sky Train to the Valley Metro Rail, taxis and shared shuttles at Terminals 3 and 4, ride share pickups at designated stations, and over 10 rental car companies in the Rental Car Center. The PHX Sky Train is free, runs 24 hours a day with trains every 3-5 minutes, and connects to the Valley Metro Rail at 44th and Washington streets, making it the fastest and most-used link to the city center for many travelers. Ride share is available 24 hours a day at multiple terminals and stations, while taxis and shuttles offer direct curbside service. Rental cars are a strong option for onward travel around the Phoenix area, though reservations are recommended due to limited walk-up availability.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://skyharbor.com/ground-transportation",
            "title": "Ground Transportation | Phoenix Sky Harbor International Airport",
            "favicon": "https://skyharbor.com/apple-touch-icon.png"
          },
          {
            "url": "https://skyharbor.com/ground-transportation/phx-sky-train",
            "title": "The PHX Sky Train® | Phoenix Sky Harbor International Airport",
            "favicon": "https://skyharbor.com/apple-touch-icon.png"
          },
          {
            "url": "https://www.faa.gov/air_traffic/publications/domesticnotices/dom21004_ec.html",
            "title": "Arizona. Phoenix Sky Harbor International Airport (PHX) Standardized Taxi Routes",
            "favicon": "https://www.faa.gov/air_traffic/publications/domesticnotices/assets/img/apple-touch-icon.png"
          },
          {
            "url": "https://skyharbor.com/ground-transportation/rental-cars",
            "title": "Rental Cars | Phoenix Sky Harbor International Airport",
            "favicon": "https://skyharbor.com/apple-touch-icon.png"
          },
          {
            "url": "https://www.faa.gov/air_traffic/publications/domesticnotices/dom21022_af.html",
            "title": "PHOENIX SKY HARBOR INTERNATIONAL AIRPORT (PHX) STA...",
            "favicon": "https://www.faa.gov/air_traffic/publications/domesticnotices/assets/images/favicon.ico"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Denver to Phoenix?",
        "answer": "Average fares from Denver to Phoenix bottom out around $169 in late January, making that the cheapest stretch to fly. The cheapest months overall are January ($173), September ($175), and October ($183), while the most expensive period is late March, when average fares climb to about $227.",
        "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 Denver to Phoenix?",
        "answer": "For flights from Denver to Phoenix, the best fares are typically found by booking 6 to 9 weeks in advance, with the absolute lowest prices around 50 days out at about $118. Booking too early (5–6 months ahead) can cost nearly double, and last-minute tickets within two weeks jump to over $200. Summer and holiday periods tend to shift the best window slightly earlier, as demand pushes prices up closer to departure.",
        "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 Denver to Phoenix?",
        "answer": "Yes, overnight red-eye flights are available from Denver to Phoenix. Southwest offers the most red-eyes with up to 18 weekly, departing daily between 9:25 PM and 10:55 PM and arriving around 11:10 PM to 12:35 AM — these land the same night or in the early hours. United operates a few red-eyes on select days departing at 9:04 PM and arriving around 10:51 PM, and Frontier flies a handful at 10:29 PM, with both arriving the same night.",
        "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 Phoenix?",
        "answer": "Southwest, United, American, and Frontier all fly nonstop from Denver to Phoenix. Southwest dominates with 256 weekly flights and a median fare around $323, while United operates 94 weekly flights at a median of $489. American runs 72 weekly mainline flights plus a handful of regional services on SkyWest, with median fares near $456. Frontier offers the lowest fares, typically around $189, with 61 weekly flights.",
        "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 Denver and Phoenix?",
        "answer": "Denver to Phoenix is typically a non-stop route, so connections are uncommon. If needed, common hubs include Salt Lake City and Las Vegas, which offer efficient transfers with minimal added travel time."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Denver to Phoenix?",
        "answer": "On the Denver to Phoenix route, American Airlines has the best on-time departure performance at 78.9%, while Envoy Air (operating for American) lags at 52.3%. Frontier has the lowest cancellation rate at 0.1%, whereas Southwest cancels 1.7% of flights.",
        "methodology": "On-time arrival 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; a flight counts as on time when it arrives within 15 minutes of schedule. Carriers are ranked by arrival on-time rate on this route, and the carrier list itself comes 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).",
        "toolsUsed": [
          "flight_schedule"
        ]
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Phoenix?",
        "answer": "November through March offers mild, sunny days, perfect for outdoor activities, with fewer tourists than the spring training season."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Denver to Phoenix?",
        "answer": "For this domestic flight, bring a REAL ID-compliant driver’s license or passport, a payment method for baggage fees, and any required health documents."
      },
      "q12": {
        "question": "Which airport should I use in Phoenix?",
        "answer": "Phoenix Sky Harbor is the only commercial airport in Phoenix, located just 3 miles east of downtown, convenient for all travelers."
      },
      "q13": {
        "question": "How do I get to Denver Intl Airport from the city center?",
        "answer": "The fastest options from downtown Denver to Denver International Airport are ride-share services like Uber or Lyft and taxis, which take about 25-35 minutes and offer door-to-door convenience, though they are the most expensive. The RTD A Line train is the most popular budget choice, running every 15 minutes from Union Station and reaching the airport in about 37 minutes for a low flat fare. Shared-ride shuttles provide a middle-ground option for hotel drop-offs or groups, with travel times of 45-60 minutes. Driving yourself is also possible with on-site parking, but it adds parking costs and time to reach the terminal.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://www.flydenver.com/parking-and-transportation/to-and-from/",
            "title": "Getting To and From | Denver International Airport",
            "favicon": "https://www.flydenver.com/apple-touch-icon.png",
            "time_published": "2026-05-15T18:36:33Z"
          },
          {
            "url": "https://flydenver.com/parking-and-transportation/to-and-from/public-bus-or-train-rtd",
            "title": "Public Bus or Train | Denver International Airport",
            "favicon": "https://flydenver.com/apple-touch-icon.png",
            "time_published": "2026-05-15T18:47:06Z"
          },
          {
            "url": "https://www.flydenver.com/parking-and-transportation/to-and-from/airport-transit-center/",
            "title": "Airport Transit Center | Denver International Airport",
            "favicon": "https://www.flydenver.com/apple-touch-icon.png",
            "time_published": "2026-05-15T18:45:07Z"
          },
          {
            "url": "https://faa.gov/air_traffic/publications/domesticnotices/dom25010_af.html",
            "title": "DENVER INTERNATIONAL AIRPORT (KDEN) standard taxi routes",
            "favicon": "https://faa.gov/air_traffic/publications/domesticnotices/assets/images/favicon.ico"
          },
          {
            "url": "https://www.fly.faa.gov/fly/flyfaa/flyfaaindex?ARPT=DEN&p=1",
            "title": "Denver International Airport"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Phoenix airport?",
        "answer": "Phoenix Sky Harbor International Airport does not have a hotel directly connected to its terminals. There are several hotels nearby, including the Holiday Inn Express & Suites Phoenix Airport and Hilton Garden Inn Phoenix Airport, but none are on-site or terminal-connected. Sleeping options at the airport itself are therefore limited.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://ihg.com/phoenix-arizona/hotels-near-phoenix-sky-harbor-international",
            "title": "35 Hotels Near PHX Phoenix Sky Harbor International (PHX) Airport | IHG",
            "favicon": "https://digital.ihg.com/is/image/ihg/app-web-chiclet-ihg?fmt=png-alpha"
          },
          {
            "url": "https://hilton.com/en/locations/usa/arizona/phoenix/phx-sky-harbor-international-airport",
            "title": "Hotels near Phoenix Sky Harbor International Airport, Phoenix, AZ - Find Hotels - Hilton",
            "favicon": "https://www.hilton.com/modules/assets/img/brand/WW/favicon_WW.svg"
          },
          {
            "url": "https://skyharbor.com/ground-transportation/phx-sky-train",
            "title": "The PHX Sky Train® | Phoenix Sky Harbor International Airport",
            "favicon": "https://skyharbor.com/apple-touch-icon.png"
          },
          {
            "url": "https://skyharbor.com/at-the-airport",
            "title": "At the Airport | Phoenix Sky Harbor International Airport",
            "favicon": "https://skyharbor.com/apple-touch-icon.png"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/phxxl-aloft-phoenix-airport/overview/",
            "title": "Phoenix Hotel Near Airport with Shuttle Service | Aloft Phoenix-Airport",
            "time_published": "2023-08-11T00:00:00Z"
          },
          {
            "url": "https://www.skyharbor.com/",
            "title": "Phoenix Sky Harbor International Airport - Official Site",
            "favicon": "https://www.skyharbor.com/apple-touch-icon.png"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Sky Harbor Intl Airport?",
        "answer": "Phoenix Sky Harbor International Airport offers free Wi-Fi throughout the airport, and currency exchange is available through ATMs and cash-to-card machines in Terminals 3 and 4. Prayer rooms or chapels are not among the listed services at Sky Harbor.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://skyharbor.com/at-the-airport",
            "title": "At the Airport | Phoenix Sky Harbor International Airport",
            "favicon": "https://skyharbor.com/apple-touch-icon.png"
          },
          {
            "url": "https://skyharbor.com/at-the-airport/services",
            "title": "Services | Phoenix Sky Harbor International Airport",
            "favicon": "https://skyharbor.com/apple-touch-icon.png"
          },
          {
            "url": "https://skyharbor.com/at-the-airport/amenities/airport-lounges",
            "title": "Airport Lounges | Phoenix Sky Harbor International Airport",
            "favicon": "https://skyharbor.com/apple-touch-icon.png"
          },
          {
            "url": "https://www.skyharbor.com/",
            "title": "Phoenix Sky Harbor International Airport - Official Site",
            "favicon": "https://www.skyharbor.com/apple-touch-icon.png"
          },
          {
            "url": "https://skyharbor.com/at-the-airport/food-drinks",
            "title": "Food & Drinks | Phoenix Sky Harbor International Airport",
            "favicon": "https://skyharbor.com/apple-touch-icon.png"
          }
        ]
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Denver and Phoenix airports?",
        "answer": "Denver International Airport offers electric carts to transport elderly or disabled passengers to airline gates, along with accessible parking, elevators, and the Hidden Disabilities Sunflower Lanyard Program for travelers with hidden disabilities. Phoenix Sky Harbor International Airport provides wheelchair services, free Aira visual interpreting and ReBokeh visual assistive technology, a dedicated TSA Passenger Support Specialist team, and a Sensory Room as part of its Compassion Corner. Travelers should arrange mobility assistance through their airline at least 48 hours before the flight.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://flydenver.com/at-the-airport/services-and-amenities/accessibility-services",
            "title": "Accessibility and Mobility | Denver International Airport",
            "favicon": "https://flydenver.com/apple-touch-icon.png",
            "time_published": "2026-08-10T20:24:04Z"
          },
          {
            "url": "https://www.flydenver.com/event/61719/",
            "title": "Accessibility Resource Fair | Denver International Airport",
            "favicon": "https://www.flydenver.com/apple-touch-icon.png",
            "time_published": "2026-07-22T17:07:58Z"
          },
          {
            "url": "https://flydenver.com/about-den/facilities",
            "title": "Airport Facilities and Grounds | Denver International Airport",
            "favicon": "https://flydenver.com/apple-touch-icon.png",
            "time_published": "2026-08-03T22:42:42Z"
          },
          {
            "url": "https://airporttech.tc.faa.gov/Products/Databases/Denver-Instrumentation/Browse-Database/Weather",
            "title": "AirportTech > Products > Databases  > Denver Instrumentation > Browse Database > Weather",
            "favicon": "https://airporttech.tc.faa.gov/Portals/0/favicon-FAA.ico?ver=L21jzf-llJYYjFtxLcsyqg%3d%3d"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Denver_International_Airport",
            "title": "Denver International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-09-11T12:43:01Z"
          },
          {
            "url": "https://skyharbor.com/about-phx/news-media/phx-check-in/2026/july-2026/phx-provides-inclusive-airport-experience-for-travelers-of-all-abilities",
            "title": "PHX Provides Inclusive Airport Experience for Travelers of all Abilities | Phoenix Sky Harbor International Airport",
            "favicon": "https://skyharbor.com/apple-touch-icon.png"
          },
          {
            "url": "https://skyharbor.com/accessibility-and-assistance",
            "title": "Accessibility and Assistance | Phoenix Sky Harbor International Airport",
            "favicon": "https://skyharbor.com/apple-touch-icon.png"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Phoenix_Sky_Harbor_International_Airport",
            "title": "Phoenix Sky Harbor International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-09-08T06:00:39Z"
          },
          {
            "url": "https://skyharbor.com/at-the-airport",
            "title": "At the Airport | Phoenix Sky Harbor International Airport",
            "favicon": "https://skyharbor.com/apple-touch-icon.png"
          },
          {
            "url": "https://www.faa.gov/air_traffic/publications/domesticnotices/dom21004_ec.html",
            "title": "Arizona. Phoenix Sky Harbor International Airport (PHX) Standardized Taxi Routes",
            "favicon": "https://www.faa.gov/air_traffic/publications/domesticnotices/assets/img/apple-touch-icon.png"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Denver to Phoenix?",
        "answer": "Southwest operates the most flights on this route, using Boeing 737-700 and Boeing 737-800 aircraft. Frontier uses the Airbus A320neo, United flies Boeing 737-900s, and American operates Boeing 737-800, Airbus A321, Airbus A320, and Airbus A319 aircraft, with American Eagle regional flights on Embraer E175 jets.",
        "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": [
          "flight_schedule"
        ]
      },
      "q18": {
        "question": "Which airline alliances serve flights from Denver to Phoenix?",
        "answer": "All three major US alliances are represented on nonstop Denver–Phoenix flights: United (Star Alliance), American (oneworld), and Frontier, which is an unaffiliated low-cost carrier without any alliance membership. Southwest also flies the route heavily but belongs to no alliance. Other alliances may serve the route via connections, but these are the only alliance carriers operating nonstop.",
        "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 Denver?",
        "answer": "Denver International Airport offers several lounges for departing travelers, including the American Airlines Admirals Club near Gate C-32, the American Express Centurion Lounge near Gate C-46, the Capital One Lounge (Plaza Premium) near Gate A-34, the Delta Sky Club at the north end of Concourse A, and multiple United Clubs at Gates A-25, B-44, and B-32, with United Club Fly near Gate B-60. The United Club at B Gates West is temporarily closed. These lounges provide spaces to relax, work, or enjoy a snack before boarding.",
        "toolsUsed": [
          "article_lookup"
        ],
        "references": [
          {
            "url": "https://flydenver.com/at-the-airport/lounge-areas",
            "title": "Denver Airport Lounges | Denver International Airport",
            "favicon": "https://flydenver.com/apple-touch-icon.png",
            "time_published": "2026-08-03T22:37:03Z"
          },
          {
            "url": "https://www.flydenver.com",
            "title": "Denver International Airport | DEN",
            "favicon": "https://www.flydenver.com/apple-touch-icon.png",
            "time_published": "2026-09-08T14:54:34Z"
          },
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/DEN",
            "title": "American Express Lounges at Denver 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/denver-international",
            "title": "Denver International Airport DEN Lounges - DEN Airport Guide and lounges. | Priority Pass",
            "favicon": "https://my.prioritypass.com/icon.png?a4ff481221414a5c"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Denver to Phoenix?",
        "answer": "Allowance depends on airline and fare. Basic economy often excludes a carry‑on and charges for checked bags; standard economy typically includes a carry‑on and personal item, with checked bag fees applying. Check your airline for exact policies."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Denver to Phoenix?",
        "answer": "Flights from Denver to Phoenix typically offer only Economy seating, with no flat‑bed Business or Premium Economy on this short domestic route."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies differ by airline and fare; flexible tickets and premium cabins generally allow same‑day changes or standby, while basic economy rarely does."
      }
    }
  }
}