{
  "response": {
    "Key": "CUN-STL",
    "orig": {
      "code": "CUN",
      "type": "airport",
      "city": "Cancún",
      "fullCity": "Cancún, Quintana Roo",
      "airport": "Cancún Intl Airport"
    },
    "dest": {
      "code": "STL",
      "type": "airport",
      "city": "St. Louis",
      "fullCity": "St. Louis, Missouri",
      "airport": "Lambert Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Cancún to St. Louis?",
        "answer": "The nonstop flight from Cancún to St. Louis is about 1,240 miles and typically takes 3 hours 10 minutes. The return leg is slightly shorter at 3 hours 5 minutes, a difference of just 5 minutes due to prevailing winds.",
        "methodology": "Carrier service, flight times and distances for this route come from our flight-schedule database, which draws on published airline timetables, U.S. government schedule data, and observed operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We report the days of the week and the departure times each carrier operates. The typical flight time is the median scheduled block time, given both per carrier and across all carriers on the route; where a schedule does not publish an elapsed time, it is derived from the scheduled departure and arrival times converted to UTC. Outbound and return times are computed by the same method, so the difference between them is directly comparable and reflects prevailing winds rather than any change in derivation. Distance is the great-circle distance between the two specific airports named, so an actual flown track is typically 2-5% longer. Where shown, on-time departure and arrival rates and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, which covers U.S. domestic routes only; where a typical fare is shown, it comes from the U.S. DOT Airline Origin and Destination Survey (DB1B), a quarterly 10% sample of tickets sold.",
        "toolsUsed": [
          "flight_schedule"
        ]
      },
      "q3": {
        "question": "What are the ground transportation options in St. Louis?",
        "answer": "From St. Louis Lambert International Airport (STL), you can reach downtown via the MetroLink light rail, which offers direct, economical service with a travel time of about 30 minutes and is the most popular choice for avoiding traffic. Taxis and ride-share services like Uber and Lyft are readily available at the terminals and provide a faster, door-to-door option, typically taking 20-25 minutes. Several major car rental agencies operate on-site for those who prefer to drive themselves. The MetroLink is the most-used mode for city center access due to its low cost and reliability.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://airport.guide/kstl",
            "title": "St Louis Airport (STL) | Terminal maps | Airport guide",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://www.airport.guide/kstl",
            "title": "St Louis Airport (STL) | Terminal maps | Airport guide",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/St._Louis_Lambert_International_Airport",
            "title": "St. Louis Lambert International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-15T19:57:22Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/St.%20Louis%20Airport",
            "title": "St. Louis Airport",
            "time_published": "2022-05-18T03:16:52Z"
          },
          {
            "url": "https://www.airport.guide/kstl/parking",
            "title": "St Louis Airport (STL) Parking Rates and Map",
            "time_published": "2026-04-20T00:00:00Z"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Cancún to St. Louis?",
        "answer": "The cheapest months to fly from Cancún to St. Louis are September (average $368), October ($374), and January ($375), while the most expensive are December ($451), June ($433), and July ($428). Low season spans September, October, January, and February, with high season in March, July, June, and December.",
        "methodology": "This seasonal price baseline is a 365-day daily curve of typical round-trip fares for the route, precomputed monthly in-house from Priceline's own air booking-summary archive (the same data that backs the site), not a third party. For each calendar day we take a representative round-trip fare — a blend of the 25th-percentile and average ticket price over the route's bookings — and Gaussian-smooth the series so it reads as a clean seasonal trend rather than day-to-day noise. Thin and international routes are neighbor-filled: the seasonal shape is borrowed from the nearest dense routes (by origin-and-destination great-circle distance) with the price level anchored to the route's own bookings, so a sparse route still shows a plausible curve. It reflects current fares and is refreshed monthly. For this route, fares for the requested travel direction were unavailable, so the pattern shown is derived from the reverse direction, which shares the same seasonal demand cycle.",
        "toolsUsed": [
          "seasonal_prices"
        ]
      },
      "q5": {
        "question": "How far in advance should I book tickets from Cancún to St. Louis?",
        "answer": "For flights from Cancún to St. Louis, the best fares come when you book about 4-6 weeks ahead, with prices bottoming out around $300 at 30 days before departure. Booking much earlier than that costs more — roughly $475 if you book 6 months out, while last-minute bookings within a week or two run $350-360. Around peak summer and holiday periods, that optimal window tends to shift earlier, so aim for 6-8 weeks ahead to lock in lower fares before prices climb.",
        "methodology": "This booking-window guidance comes from the same monthly in-house analysis of Priceline's own air booking-summary archive. It expresses the typical round-trip fare as a function of how many days before departure a trip is booked — from about 180 days out down to the day of departure — aggregating the route's bookings by advance-purchase days and Gaussian-smoothing the curve the same way as the seasonal baseline. From that curve we highlight the stretch of lead times with the lowest average fare as the suggested booking window. Thin and international routes are neighbor-filled from the nearest dense routes, with the price level anchored to the route's own bookings. It reflects current fares and is refreshed monthly. For this route, fares for the requested travel direction were unavailable, so the pattern shown is derived from the reverse direction, which shares the same seasonal demand cycle.",
        "toolsUsed": [
          "booking_timing"
        ]
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Cancún to St. Louis?",
        "answer": "No overnight (red‑eye) flights operate from Cancún to St. Louis — neither nonstop nor as a connecting itinerary where the long leg is a red‑eye.",
        "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 Cancún and St. Louis?",
        "answer": "Common layover cities include Dallas/Fort Worth, Houston, Atlanta and Chicago. These hubs offer efficient connections and broad domestic networks to St. Louis, while keeping total travel time competitive. All are U.S. airports, so you clear customs and immigration at your first U.S. point of entry."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to St. Louis?",
        "answer": "April to June and September to October offer pleasant temperatures and fewer tourists."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Cancún to St. Louis?",
        "answer": "Bring a passport valid for your stay, a visa or ESTA if required, proof of onward travel, and a payment method for baggage. Check for any vaccination or health document requirements."
      },
      "q12": {
        "question": "Which airport should I use in St. Louis?",
        "answer": "St. Louis Lambert International Airport is the only commercial airport serving the city. It is located about 14 miles northwest of downtown and is a focus city for Southwest Airlines, with flights from all major US carriers."
      },
      "q13": {
        "question": "How do I get to Cancún Intl Airport from the city center?",
        "answer": "From downtown Cancún, the most popular and fastest way to reach Cancún International Airport is by taxi or pre-booked private shuttle, which take about 25 minutes. Public buses (ADO) offer a cheaper option but run less frequently and take longer. Ride-share services like Uber operate in the area, though availability can be limited at the airport; driving yourself is possible with on-site parking available. Private transportation services, which can be arranged in advance, are widely recommended for a reliable, comfortable transfer.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://airportcun.com",
            "title": "Cancun Airport Official Information | CUN | Arrivals, Departures and Transfers",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://www.airport-cun.com/lounges.php",
            "title": "Lounge Cancun Airport (CUN)",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://www.airport-cun.com/terminal-3.php",
            "title": "Cancun Airport Terminal 3",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://airportcun.com/private-transportation",
            "title": "Cancun Airport Private Transfers | Cancun International Airport (CUN)",
            "time_published": "2024-04-30T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Canc%C3%BAn_International_Airport",
            "title": "Cancún International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-15T22:11:41Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at St. Louis airport?",
        "answer": "St. Louis Lambert International Airport does not have an on-site hotel, capsule hotel, or sleeping pods directly inside the terminals. Several nearby hotels offer complimentary shuttle service, including the Renaissance St. Louis Airport Hotel, which is located just off airport property and provides a free shuttle to and from both terminals.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://sleepinginairports.net/guides/st-louis-lambert-airport-guide.htm",
            "title": "St. Louis Lambert Airport Guide (STL) - 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": "2026-05-30T00:57:38Z"
          },
          {
            "url": "https://sleepinginairports.net/lounge/st-louis-airport/admirals-club-stl.htm",
            "title": "St. Louis Lambert Airport Guide (STL) - Sleeping in Airports",
            "time_published": "2026-04-13T20:29:58Z"
          },
          {
            "url": "https://airport.guide/kstl",
            "title": "St Louis Airport (STL) | Terminal maps | Airport guide",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://www.marriott.com/en-us/hotels/stlsa-renaissance-st-louis-airport-hotel/overview/?gclid=8030245d09671d030bbc421df72c6641&gclsrc=3p.ds&cid=PAI_GLB0004YXE_GLE000BIMM_GLF000OETR",
            "title": "Hotels near St. Louis Airport | Renaissance St. Louis Airport Hotel",
            "time_published": "2024-10-11T00:00:00Z"
          },
          {
            "url": "http://activities.marriott.com/north-america/usa/missouri/st.-louis/activities/arrival_transfer_st_louis_airport_stl_to_st_louis_by_car_or_suv-X1B5YX",
            "title": "Arrival transfer St. Louis Airport STL to St. Louis by Car or SUV",
            "time_published": "2026-05-01T00:00:00Z"
          },
          {
            "url": "https://www.airport.guide/kstl/parking",
            "title": "St Louis Airport (STL) Parking Rates and Map",
            "time_published": "2026-04-20T00:00:00Z"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Lambert Intl Airport?",
        "answer": "Lambert International Airport offers free Wi-Fi throughout the terminals. Currency exchange is available via a Travelex desk in Terminal 1 near the C checkpoint, and there are ATMs in both terminals. A prayer room is located in Terminal 1 near gate C2, and a meditation room is in Terminal 2 near gate E33.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://airport.guide/kstl",
            "title": "St Louis Airport (STL) | Terminal maps | Airport guide",
            "favicon": "https://airport.guide/apple-touch-icon.png"
          },
          {
            "url": "https://en.wikipedia.org/wiki/St._Louis_Lambert_International_Airport",
            "title": "St. Louis Lambert International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-15T19:57:22Z"
          },
          {
            "url": "https://www.airport.guide/kstl",
            "title": "St Louis Airport (STL) | Terminal maps | Airport guide",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/St.%20Louis%20Lambert%20International%20Airport",
            "title": "St. Louis Lambert International Airport",
            "time_published": "2026-05-01T13:15:49Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Lambert%20Airport%20Terminal%202%20station",
            "title": "Lambert Airport Terminal 2 station",
            "time_published": "2025-12-17T17:36:46Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Cancún to St. Louis?",
        "answer": "There is no nonstop service between Cancún and St. Louis, so all flights connect. On the long leg from Cancún to a U.S. hub, the most common aircraft are the Boeing 737-800, Boeing 737 MAX 9, and Airbus A321-100, with a few (unspecified) types on Southwest. The short connecting leg into St. Louis mostly uses Boeing 737s, Airbus A320-family jets, and regional aircraft like the Embraer 175 and Bombardier CRJ-550. Specific aircraft can vary by day and airline, and while Wi‑Fi and seatback entertainment are widely available, individual offerings differ.",
        "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 Cancún to St. Louis?",
        "answer": "From Cancún to St. Louis, Southwest, Frontier, and American Airlines operate nonstop flights. Southwest and Frontier are not part of any global alliance, while American Airlines is a member of Oneworld. Other alliances may serve the route via connections, but these are the only carriers and alliances on the nonstop service.",
        "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 Cancún?",
        "answer": "Cancún International Airport offers several lounge options across its terminals. In Terminal 2, you'll find the Mera Business Lounge and The Lounge Cancun by Global Lounge Network. Terminal 3 houses the VIP Lounge by MERA Roof, a Mera Business Lounge, and a location of The Lounge. Terminal 4 features a Mera Business Lounge for both national and international departures, plus The Lounge in Partnership with Air Transat. Access is typically available to business-class passengers, elite status holders, and Priority Pass members, with some lounges also offering day passes for a fee. Note that these are independent lounges—no major U.S. airline operates its own branded club at CUN.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/CUN",
            "title": "American Express Lounges at Cancun International Airport | Amex US",
            "time_published": "2026-05-05T00:00:00Z"
          },
          {
            "url": "https://www.prioritypass.com/airport-guides/cancun-international",
            "title": "Cancun International CUN lounges - CUN Airport Guide and lounges. | Priority Pass",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://www.prioritypass.com/en-GB/airport-guides/cancun-international",
            "title": "Cancún Airport Guide | Priority Pass",
            "favicon": "https://www.prioritypass.com/icon.png?a4ff481221414a5c",
            "time_published": "2024-11-05T16:20:09Z"
          },
          {
            "url": "https://airportcun.com",
            "title": "Cancun Airport Official Information | CUN | Arrivals, Departures and Transfers",
            "time_published": "2026-01-01T00:00:00Z"
          },
          {
            "url": "https://americanexpress.com/es-mx/travel/lounges/the-platinum-card/CUN",
            "title": "Salas de American Express en Aeropuerto Internacional de Cancún | Amex MX",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Cancún to St. Louis?",
        "answer": "Baggage rules on Cancún–St. Louis flights depend on the airline and fare class. Basic economy often restricts checked luggage and may charge for carry‑on, while standard economy usually includes a carry‑on and one free checked bag. Premium cabins offer more generous allowances."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Cancún to St. Louis?",
        "answer": "Flights from Cancún to St. Louis typically offer Economy and sometimes a larger recliner‑style First class, but flat‑bed Business and Premium Economy are not common on this route."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies differ by airline and fare; flexible and premium tickets usually allow same‑day changes or standby, while Basic Economy generally does not."
      }
    }
  }
}