{
  "response": {
    "Key": "CHS-SJU",
    "orig": {
      "code": "CHS",
      "type": "airport",
      "city": "Charleston",
      "fullCity": "Charleston, South Carolina",
      "airport": "Charleston Air Force Base-Intl Airport"
    },
    "dest": {
      "code": "SJU",
      "type": "airport",
      "city": "San Juan",
      "fullCity": "San Juan, Puerto Rico",
      "airport": "Luis Munoz Marin Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Charleston to San Juan?",
        "answer": "There are no nonstop flights from Charleston (CHS) to San Juan (SJU). A typical one-stop connection takes about 5 to 7 hours total travel time, with common layovers in Atlanta, Charlotte, or Miami. The return flight duration is similar, often slightly shorter due to prevailing winds. JetBlue and Delta often offer some of the quicker itineraries via their hubs."
      },
      "q1": {
        "question": "Are there any direct flights from Charleston to San Juan?",
        "answer": "There are no nonstop flights from Charleston (CHS) to San Juan (SJU). The shortest connecting option is typically via Miami (MIA) on American Airlines, with a total travel time of roughly 4.5 to 5 hours including the layover. Other one-stop routings include connections through New York (JFK), Fort Lauderdale (FLL), or Charlotte (CLT) on carriers like JetBlue, United, and Southwest.",
        "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.",
        "toolsUsed": [
          "route_airlines"
        ]
      },
      "q3": {
        "question": "What are the ground transportation options in San Juan?",
        "answer": "From Luis Muñoz Marín International Airport (SJU) to San Juan’s city center, taxis are the most used option: they operate on fixed zone-based fares and are readily available just outside baggage claim. Uber and other ride-share services are legal and widely used in Puerto Rico, though pickup may require walking to a designated area. There is limited public bus service via AMA route T5, which connects to the Tren Urbano at Sagrado Corazón station, but it is slow and less convenient for most travelers. Car rentals are available at the airport and are popular for exploring the island, but less practical for navigating Old San Juan’s narrow streets. Most visitors heading directly to hotels or the cruise port prefer taxis or ride-shares for their simplicity and reasonable cost."
      },
      "q4": {
        "question": "When is the cheapest time to fly from Charleston to San Juan?",
        "answer": "The cheapest time to fly from Charleston to San Juan is late summer and early fall, with the lowest average fares in September ($425), August ($445), and October ($464). The most expensive months are December ($646), February ($577), and June ($576).",
        "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 Charleston to San Juan?",
        "answer": "For flights from Charleston to San Juan, the optimal booking window is about 10 to 13 weeks before departure, when average fares are around $460. Booking very early—roughly 25 weeks out—can also yield low prices (around $450), while waiting until the last minute typically drives costs above $700. During peak summer and holiday periods, demand may tighten availability, so aiming for the earlier end of that window or slightly beyond is advisable.",
        "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 Charleston to San Juan?",
        "answer": "There are no nonstop red-eye flights from Charleston (CHS) to San Juan (SJU). Connecting itineraries exist where the overnight leg departs Fort Lauderdale (FLL) on JetBlue around 9:15 PM and arrives in San Juan at 11:57 PM, but that is not a true red-eye since it lands before midnight rather than the next morning.",
        "methodology": "Red-eye flights are identified from scheduled local departure and arrival times in our flight-schedule database — built from published airline timetables and official schedule data, including U.S. Department of Transportation records for domestic routes — flagging services that depart late at night and arrive the following morning; for connecting itineraries the red-eye is based on the timing of the overnight long-haul leg.",
        "toolsUsed": [
          "redeye_flights"
        ]
      },
      "q7": {
        "question": "Which airlines usually operate this route from Charleston to San Juan?",
        "answer": "There is no nonstop service from Charleston (CHS) to San Juan (SJU). Common one-stop connecting routings include American via Miami, JetBlue via Fort Lauderdale or New York JFK, and United via Chicago O'Hare or Newark, with Southwest via Baltimore also appearing. These patterns are based on schedule data for a representative day and may vary by season.",
        "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.",
        "toolsUsed": [
          "route_airlines"
        ]
      },
      "q8": {
        "question": "If I need a connection, what are common layover cities between Charleston and San Juan?",
        "answer": "Common layover cities between Charleston (CHS) and San Juan (SJU) are Charlotte, Atlanta, and Miami. Charlotte offers a compact hub with quick connections, Atlanta provides the world’s busiest airport with frequent flights, and Miami serves as a major gateway to the Caribbean with many onward options to San Juan. All keep total travel time competitive."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Charleston to San Juan?",
        "answer": "On-time performance can be mixed due to seasonal weather and East Coast air traffic. Early morning departures, particularly on JetBlue, tend to be more punctual."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to San Juan?",
        "answer": "Mid-December to April offers pleasant temperatures, lower humidity, and fewer tourists outside holiday peaks."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Charleston to San Juan?",
        "answer": "For travel from Charleston to San Juan, Puerto Rico, no passport is required as it is a U.S. domestic flight. Bring a REAL ID-compliant driver's license or other acceptable ID (such as a passport) for TSA check-in. No visa or travel authorization is needed. Have a payment method ready for baggage fees. Proof of onward or return travel is not required. No vaccination certificates are currently mandated for this route."
      },
      "q12": {
        "question": "Which airport should I use in San Juan?",
        "answer": "Luis Muñoz Marín International Airport (SJU) is the main airport serving San Juan, located about 3 miles southeast of downtown and close to major resorts. It handles all commercial flights to the city, with no other airport in San Juan offering scheduled passenger service."
      },
      "q13": {
        "question": "How do I get to Charleston Air Force Base-Intl Airport from the city center?",
        "answer": "Charleston International Airport is about 12 miles from downtown. There is no direct public transit; CARTA bus Route 11 serves a stop 1.5 miles away requiring a rideshare or taxi connection. Rideshare and taxis are the most popular, taking 15–20 minutes. Parking on‑site is affordable for those driving."
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at San Juan airport?",
        "answer": "San Juan Airport has no on-site hotels or sleeping pods. The closest option is the San Juan Airport Hotel, located just outside Terminal D, a short walk from baggage claim; no shuttle needed. Other nearby hotels offer free shuttle service."
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Luis Munoz Marin Intl Airport?",
        "answer": "Luis Muñoz Marín International Airport has currency exchange services in Terminals A and C, a chapel in Terminal A, and free Wi‑Fi throughout the airport."
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Charleston and San Juan airports?",
        "answer": "Charleston International (CHS) provides wheelchair assistance and accessible restrooms; request help through your airline 48 hours in advance. It does not have a dedicated children's play area. Luis Muñoz Marín International (SJU) offers mobility assistance, accessible facilities, and a children's play zone in Terminal A near the food court."
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Charleston to San Juan?",
        "answer": "There are no nonstop flights from Charleston (CHS) to San Juan (SJU). On typical one-stop connections, the longer leg is most often operated with Boeing 737-800s (via Miami on American) or Airbus A320-100s (via Fort Lauderdale on JetBlue), while Airbus A321 variants and Boeing 737 MAX aircraft also appear on some routings through other hubs. The exact aircraft can vary by day and airline, and Wi-Fi and seatback entertainment are widely available on these connecting services.",
        "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 Charleston to San Juan?",
        "answer": "Based on the schedule data, there is no nonstop service from Charleston to San Juan, and the connecting carriers shown are American Airlines (oneworld), JetBlue (unaffiliated with any major alliance), United Airlines (Star Alliance), and Southwest Airlines (also unaffiliated). So the alliances that serve this route via connections are oneworld (through American) and Star Alliance (through United), while JetBlue and Southwest operate outside the global alliance system. Other alliances may also serve it through different connecting hubs, but those are the ones reflected in the current schedule data.",
        "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.",
        "toolsUsed": [
          "route_airlines"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Charleston?",
        "answer": "Charleston International Airport has a single lounge, The Club CHS, located airside in the central hall. It accepts Priority Pass, LoungeKey, and day-pass purchases. The lounge offers complimentary snacks, a full bar, Wi‑Fi, and runway views. No airline‑branded lounges operate at CHS."
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Charleston to San Juan?",
        "answer": "On flights from Charleston to San Juan, baggage policies depend on the airline and fare type. Basic economy tickets usually do not include a free checked bag, while standard economy often includes one checked bag and a carry-on. Premium cabins offer more generous allowances. Since Puerto Rico is a U.S. territory, domestic baggage rules may apply on some airlines, so always verify with the carrier."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Charleston to San Juan?",
        "answer": "Flights from Charleston to San Juan usually offer Economy, occasionally Premium Economy, and rarely flat‑bed Business class on this route."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies vary by airline and fare type, with flexible and premium cabin tickets typically offering same‑day changes or standby, while restrictive fares usually do not."
      },
      "q24": {
        "question": "What are the cheapest days and times to fly from Charleston to San Juan?",
        "answer": "The cheapest day to fly from Charleston to San Juan is Tuesday with an average fare of $600, while Sunday is the most expensive at $819. The cheapest time to depart is Early Morning with fares starting at $322, contrasting with Midday where the lowest fare is $441.",
        "methodology": "The cheapest day of the week and time of day to depart are drawn from the same large sample of real fares Priceline users found on this route in the last 72 hours, grouped by the day of the week and by the time-of-day window of the outbound departure, with the lowest and average price reported for each.",
        "relevant": true,
        "toolsUsed": [
          "departure_timing"
        ]
      },
      "q25": {
        "question": "What is a good price for a flight from Charleston to San Juan?",
        "answer": "A good price for a flight from Charleston to San Juan is anything under $441, which is the great-deal threshold based on recent fare data. The typical price on this route is around $651, with the lowest available fare at $322.",
        "methodology": "The typical price, the lowest fare, a 'great deal' threshold, and how fares are spread across price bands are summarized from a large sample of the real fares Priceline users found on this route in the last 72 hours, with a small fraction of extreme outlier fares excluded from the range.",
        "relevant": true,
        "toolsUsed": [
          "price_context"
        ]
      }
    }
  }
}