{
  "response": {
    "Key": "CJU-SEL",
    "orig": {
      "code": "CJU",
      "type": "airport",
      "city": "Jeju Island",
      "fullCity": "Jeju Island, Korea",
      "airport": "Jeju Intl Airport"
    },
    "dest": {
      "code": "SEL",
      "type": "airport",
      "city": "Seoul",
      "fullCity": "Seoul, Korea",
      "airport": "Incheon Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Jeju Island to Seoul?",
        "answer": "A nonstop flight from Jeju (CJU) to Seoul (GMP) typically takes about 1 hour to 1 hour 10 minutes. There are no practical layover flights on this domestic route, as direct service is frequent and fast. The return flight from Seoul to Jeju takes roughly the same time."
      },
      "q1": {
        "question": "Are there any direct flights from Jeju Island to Seoul?",
        "answer": "Yes, there are many non‑stop flights from Jeju (CJU) to Seoul‑Gimpo (GMP) every day, operated by Asiana Airlines, Korean Air, Jeju Air, Eastar Jet, Jin Air, Air Busan, and T'way Air. Flights run daily with extremely high frequency — hundreds per week across all carriers — so you can fly any day without concern.",
        "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"
        ]
      },
      "q2": {
        "question": "Are there visa requirements to travel from Jeju Island to Seoul?",
        "answer": "No visa is required for travel between Jeju Island (CJU) and Seoul (SEL) because both are within South Korea, making this a domestic flight. All passengers, regardless of nationality, only need to present valid identification for domestic travel. However, if you are not a South Korean national, you must have already legally entered South Korea with the appropriate visa or entry permit before taking this domestic flight. Note that Jeju has a special visa-free policy for many nationalities allowing direct entry to Jeju only, but if you entered Jeju under that policy, you cannot travel onward to Seoul without a valid Korean visa."
      },
      "q3": {
        "question": "What are the ground transportation options in Seoul?",
        "answer": "Seoul is served mainly by Incheon International Airport (ICN) and to a lesser extent Gimpo International Airport (GMP) for domestic flights. From Incheon, the AREX Express train reaches Seoul Station in about forty-three minutes, offering a fast and comfortable ride. The AREX All-Stop train is cheaper but takes around sixty minutes. Airport limousine buses serve major districts and hotels, providing a convenient door-to-door option though they may be affected by traffic. Taxis and ride-share services are available but can be expensive and slow during peak hours. Car rentals are possible but not recommended for city travel due to heavy traffic and limited parking. From Gimpo, the AREX and Seoul Subway Line 9 connect to the city center in about thirty minutes. Most travelers from Incheon use the AREX Express or limousine buses for their balance of speed, comfort, and cost."
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Jeju Island to Seoul?",
        "answer": "Yes, overnight red‑eye flights are available from Jeju (CJU) to Seoul (Gimpo, GMP) daily on multiple carriers including Jeju Air (7C), Jin Air (LJ), Korean Air (KE), Eastar Jet (ZE), and T'way Air (WE), with Air Busan (BX) operating them on select days. Typical departures cluster between 9:00 PM and 9:20 PM, arriving in Seoul roughly an hour later in the late evening (around 10:10–10:30 PM), though note these are short domestic hops rather than true overnight flights that land 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 Jeju Island to Seoul?",
        "answer": "Nonstop flights from Jeju (CJU) to Seoul (Gimpo, GMP) are operated by Asiana Airlines (OZ), Korean Air (KE), Jeju Air (7C), Eastar Jet (ZE), Jin Air (LJ), Air Busan (BX), and WE Airlines (WE) with very frequent daily service — each carrier offers multiple departures throughout the day. These airlines cover the route with hundreds of weekly flights, making it one of the busiest domestic air corridors in Korea. The schedule data shows all flights land at Gimpo Airport (GMP) in Seoul, as there are no nonstops to Incheon (ICN) from Jeju.",
        "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"
        ]
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Jeju Island to Seoul?",
        "answer": "On‑time performance is generally good, but Jeju’s weather can cause occasional delays. Early morning flights on Korean Air or Asiana Airlines tend to be more punctual than later departures."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Seoul?",
        "answer": "April to June and September to October offer pleasant temperatures, clear skies, and fewer tourists than peak summer and holiday seasons."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Jeju Island to Seoul?",
        "answer": "For this domestic flight within South Korea, bring a valid government-issued ID such as your national ID card or passport. No visa is required. Carry a payment method for baggage fees. Proof of onward travel and vaccination certificates are not mandatory, but check airline policies."
      },
      "q12": {
        "question": "Which airport should I use in Seoul?",
        "answer": "Seoul has two airports. Incheon is the main international gateway, located about 48 km west of downtown, and is well-connected by express train and bus. It serves most full-service and low-cost carriers and offers extensive global connections. Gimpo is much closer to the city centre, only 16 km away, and primarily handles domestic flights and some short-haul international routes to China, Japan, and Taiwan. For your domestic flight from Jeju, Gimpo is far more convenient and time-saving."
      },
      "q13": {
        "question": "How do I get to Jeju Intl Airport from the city center?",
        "answer": "From downtown Jeju City to Jeju International Airport, local buses take about 20–30 minutes and are the cheapest option. Taxis are faster at 10–15 minutes and widely used for their convenience. Ride‑share apps are limited, and driving with parking is available but less common for short trips."
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Seoul airport?",
        "answer": "Yes. At Incheon Airport the Terminal 1 Transit Hotel and a capsule hotel are inside the terminal, and the Grand Hyatt Incheon is a short shuttle ride away. Terminal 2 has a transit hotel and a Darakhyu capsule hotel. Gimpo Airport does not have on-site sleeping facilities but nearby hotels are connected by shuttle."
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Incheon Intl Airport?",
        "answer": "Yes. Incheon International Airport has currency exchange counters throughout both terminals, prayer rooms for multiple faiths located in each terminal, and free Wi‑Fi available airport-wide."
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Jeju Island and Seoul airports?",
        "answer": "At Jeju International Airport, wheelchair assistance and accessible restrooms are available; request help from your airline 48 hours in advance. There is a small children’s play area near Gate 4. In Seoul, both Gimpo and Incheon airports offer mobility assistance, accessible elevators, and nursing rooms. Incheon has dedicated children’s play zones in multiple terminals. Contact your airline or the airport help desk to arrange services ahead of time."
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Jeju Island to Seoul?",
        "answer": "Flights from Jeju Island to Seoul are predominantly operated with Boeing 737-800 aircraft, flown by T'way Air, Jin Air, Jeju Air, and Eastar Jet, while T'way Air also uses the Boeing 737 MAX 8 on some services. Air Busan's aircraft type is not specified in the schedule data, and a few flights appear on Air Seoul's Airbus A321-100 or Jin Air's Boeing 737-900, though the exact aircraft can vary by day and airline.",
        "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 Jeju Island to Seoul?",
        "answer": "Nonstop flights from Jeju Island to Seoul are operated by Korean Air (SkyTeam), Asiana Airlines (Star Alliance), and several unaffiliated carriers including Jeju Air, Eastar Jet, Jin Air, Air Busan, and WE. Other alliances may serve the route through connecting itineraries.",
        "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 Jeju Island?",
        "answer": "At Jeju International Airport, Korean Air operates a KAL Lounge in the domestic terminal. It is accessible to Prestige Class passengers, SkyTeam Elite Plus members, and Korean Air Morning Calm Club members. The lounge offers light snacks, beverages, and comfortable seating with views of the tarmac."
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Jeju Island to Seoul?",
        "answer": "This is a domestic route within Korea. Baggage allowance varies by airline and fare; basic economy may not include checked luggage. Standard economy typically includes one checked bag and a carry‑on, but confirm with your airline."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Jeju Island to Seoul?",
        "answer": "On the short domestic hop from Jeju to Seoul, you'll typically find Economy and Business class, though Business is often standard recliner seats rather than flat-beds, and Premium Economy is not common."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies vary by airline and fare; flexible and higher‑cabin tickets generally allow same‑day changes or standby, while the most restrictive fares typically do not."
      }
    }
  }
}