{
  "response": {
    "Key": "CMH-SEL",
    "orig": {
      "code": "CMH",
      "type": "airport",
      "city": "Columbus",
      "fullCity": "Columbus, Ohio",
      "airport": "John Glenn 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 Columbus to Seoul?",
        "answer": "There are no nonstop flights from Columbus (CMH) to Seoul (ICN). The typical total travel time with one stop, often via a major hub like Chicago, Dallas, or Atlanta, ranges from 17 to 20 hours. The return from Seoul to Columbus is similar, usually 16 to 19 hours depending on layovers and wind patterns."
      },
      "q2": {
        "question": "Are there visa requirements to travel from Columbus to Seoul?",
        "answer": "Yes, a visa or travel authorization is required for a flight from Columbus to Seoul. U.S. citizens can visit South Korea visa-free for up to 90 days with a valid K-ETA (Korea Electronic Travel Authorization), but some nationalities must obtain a visa in advance. South Korean nationals traveling to the U.S. may be eligible for the Visa Waiver Program, requiring a valid ESTA authorization for stays up to 90 days; otherwise, a visa is needed."
      },
      "q3": {
        "question": "What are the ground transportation options in Seoul?",
        "answer": "From Incheon Airport, the fastest and most popular option is the AREX express train, which reaches Seoul Station in about 43 minutes and costs around 8,000 won. Comfortable airport limousine buses serve many city districts for 17,000–18,000 won and take roughly 70–90 minutes depending on the route. Taxis and international ride‑share apps are readily available, though they are slower in traffic and more expensive. Car rentals are possible but rarely used for the airport transfer due to Seoul’s excellent public transit and dense traffic.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://airport.kr/bbs/ap_en/937/138233/artclView.do",
            "title": "K2Web Wizard",
            "time_published": "2024-10-16T00:00:00Z"
          },
          {
            "url": "https://www.airport.kr/ap_en/1507/subview.do",
            "title": "International Incheon Airport"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transportation_in_Seoul",
            "title": "Transportation in Seoul",
            "time_published": "2025-09-22T07:17:16Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Incheon%20International%20Airport%20Terminal%201%20station",
            "title": "Incheon International Airport Terminal 1 station",
            "time_published": "2026-03-08T09:10:35Z"
          },
          {
            "url": "https://airport.kr/ap_en/6604/subview.do",
            "title": "International Incheon Airport"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Columbus to Seoul?",
        "answer": "The cheapest months to fly from Columbus to Seoul are April, August, and November, with average fares around $1,340–$1,500, while June and December are the most expensive, averaging $1,835 and $1,781 respectively.",
        "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 Columbus to Seoul?",
        "answer": "For flights from Columbus to Seoul, the best fares are typically found when booking 23 to 26 weeks ahead, with an average price around $1,362 in that window. The absolute cheapest day to book is 180 days out, at about $1,273, while last‑minute fares (0–5 days ahead) can climb to $1,700 or more. For summer and holiday travel, when demand is highest, aiming for the early side of that 23–26 week range — or even a bit earlier — helps lock in a lower fare before prices rise.",
        "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 Columbus to Seoul?",
        "answer": "No nonstop red-eye flights operate from Columbus to Seoul, but connecting overnight itineraries are available. The long overnight leg departs San Francisco (SFO) on United Airlines at 11:55 PM arriving at 4:20 AM, or on Asiana Airlines at 11:20 PM arriving at 4:05 AM — both arrivals land in the early hours. These connect from a United flight out of Columbus with a layover of about 1h43m to 2h18m in San Francisco.",
        "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 Columbus and Seoul?",
        "answer": "Common layovers for flights from Columbus to Seoul include Chicago, Dallas/Fort Worth, Atlanta, and Detroit. These hubs offer extensive domestic connections and efficient international transfers, with competitive total travel times. Note that Seoul's Incheon Airport provides visa-free transit for many nationalities, and a K-ETA may be required for entry into South Korea."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Columbus to Seoul?",
        "answer": "On-time performance can vary due to connecting hubs, but early flights from CMH are less prone to cascading delays. Airlines like Delta and Korean Air generally maintain reliable schedules on this route."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Seoul?",
        "answer": "April to June and September to October offer pleasant temperatures, low rainfall, and fewer tourists than summer."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Columbus to Seoul?",
        "answer": "Bring a passport valid for at least six months, a valid K‑ETA or visa, proof of onward or return travel, payment for baggage, and any required vaccination certificates."
      },
      "q12": {
        "question": "Which airport should I use in Seoul?",
        "answer": "Incheon is the primary international gateway with extensive connections worldwide and is well linked to central Seoul. Gimpo focuses on domestic flights and some short‑haul international routes, and is closer to downtown."
      },
      "q13": {
        "question": "How do I get to John Glenn Intl Airport from the city center?",
        "answer": "From downtown Columbus, you can reach John Glenn International Airport (CMH) by COTA bus (AirConnect or Line 7, roughly 25–35 minutes, around $2.75), taxi (about $25 to downtown, available 24/7), or ride‑share (Lyft/Uber pick up on the ground transportation level). Driving is straightforward via I‑670, with several parking options at the airport. The bus is the most affordable and popular choice, while a taxi or ride‑share is the fastest door‑to‑door option.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://www.airportsdata.net/airport-CMH/",
            "title": "Columbus airport (CMH)",
            "time_published": "2025-11-14T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/John_Glenn_Columbus_International_Airport?oldid=751470363",
            "title": "John Glenn Columbus International Airport - Wikipedia",
            "time_published": "2016-11-25T22:19:25Z"
          },
          {
            "url": "https://www.airportsdata.net/airport-CMH-transportation/",
            "title": "Transfer to/from - Columbus airport (CMH)",
            "time_published": "2020-03-26T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/CMH",
            "title": "CMH",
            "time_published": "2025-02-22T13:51:45Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Columbus_Airport",
            "title": "Columbus Airport",
            "time_published": "2024-10-23T19:10:27Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Seoul airport?",
        "answer": "Seoul Incheon Airport has the Incheon Airport Transit Hotel located airside on the 4th floor of Terminal 1, offering rooms in 6‑hour blocks and easy access without leaving the secure area. The ibis Styles Ambassador Incheon Airport is also nearby with a shuttle connection for those willing to exit immigration. Both terminals have designated rest zones with reclined loungers and armrest‑free benches for sleeping.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://www.sleepinginairports.net/guides/seoul-incheon-airport-guide.htm",
            "title": "Seoul Incheon Airport Guide (ICN) - 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": "2018-10-02T00:00:42Z"
          },
          {
            "url": "https://www.walkerhill.com/transithotel/customer/FAQ",
            "title": "Incheon Airport Transit Hotel",
            "time_published": "2022-06-13T00:00:00Z"
          },
          {
            "url": "http://www.sleepinginairports.net/asia/seoul.htm",
            "title": "Seoul Incheon Airport Guide (ICN) - Sleeping in Airports",
            "time_published": "2026-04-13T17:34:21Z"
          },
          {
            "url": "https://www.walkerhill.com/transithotel/en/t1/about/Introduction.jsp",
            "title": "Incheon Airport Transit Hotel",
            "time_published": "2022-06-13T00:00:00Z"
          },
          {
            "url": "https://all.accor.com/a/en/destination/city/hotels-seoul-v5556.html",
            "title": "Hotels in Seoul | Accor ALL.com",
            "time_published": "2025-01-20T00:00:00Z"
          },
          {
            "url": "https://www.walkerhill.com/transithotel/m/en/t1/about/Introduction.jsp",
            "title": "Incheon Airport Transit Hotel",
            "time_published": "2022-06-13T00:00:00Z"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Incheon Intl Airport?",
        "answer": "Incheon International Airport offers currency exchange services, prayer rooms, and free Wi‑Fi. Currency exchange counters and ATMs are located in the public departure halls of both terminals on the third floor, before security. Muslim prayer rooms are available in the duty‑free zones of Terminal 1 (near Gate 24) and Terminal 2 (near Gate 253), and there is a multi‑faith prayer room in Terminal 1’s public area on the fourth floor. Free Wi‑Fi is provided throughout all passenger areas.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://airport.kr/ap_en/1562/subview.do",
            "title": "International Incheon Airport"
          },
          {
            "url": "https://airport.kr/ap_en/1542/subview.do",
            "title": "International Incheon Airport",
            "time_published": "1999-01-01T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Incheon%20International%20Airport",
            "title": "Incheon International Airport",
            "time_published": "2026-04-30T15:03:57Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/File:Incheon_International_Airport_Interior.jpg",
            "time_published": "2013-06-13T00:00:00Z"
          },
          {
            "url": "https://airport.kr/ap_en/1413/subview.do",
            "title": "International Incheon Airport"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Columbus to Seoul?",
        "answer": "There is no nonstop service from Columbus to Seoul, so all itineraries involve a connection. The long-haul leg is most often flown by a Boeing 787-9 (via Dallas/Fort Worth, San Francisco, Toronto, or Seattle on American, United, Air Canada, or Alaska) or an Airbus A350-900 or A380-800 (via New York, San Francisco, or Los Angeles on Asiana). The domestic feeder flights from Columbus are typically operated by Embraer 175/170 regional jets, Boeing 737s, or Airbus A319s, 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 Columbus to Seoul?",
        "answer": "Flights from Columbus to Seoul are connecting-only, with the long trans‑Pacific leg most often operated by Asiana Airlines (OZ, a Star Alliance member), American Airlines (AA, oneworld), United Airlines (UA, Star Alliance), Air Canada (AC, Star Alliance), and Alaska Airlines (AS, oneworld). Asiana, United, and Air Canada all belong to Star Alliance; American and Alaska are oneworld carriers. No SkyTeam or unaffiliated carrier appears among the common one‑stop patterns on this route.",
        "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 Columbus?",
        "answer": "At John Glenn Columbus International Airport (CMH), the only widely known independent lounge open to various travelers is the Escape Lounge in Concourse B, which is part of the Priority Pass network and also accessible to American Express Platinum cardholders. It operates from 5:00 AM to 8:00 PM and offers a quiet space with complimentary snacks and drinks. The airport also has a USO Lounge for active military members and their families, located near Concourse C. There are no airline-branded lounges such as United Club, Delta Sky Club, or American Admirals Club at CMH.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://my.prioritypass.com/en-GB/lounges/united-states-of-america/john-glenn-columbus-international",
            "title": "John Glenn Columbus International Airport CMH Lounges - CMH Airport Guide and lounges. | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://americanexpress.com/en-us/travel/lounges/the-platinum-card/CMH",
            "title": "American Express Lounges at John Glenn Columbus International Airport | Amex US",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "https://www.airportsdata.net/airport-CMH/",
            "title": "Columbus airport (CMH)",
            "time_published": "2025-11-14T00:00:00Z"
          },
          {
            "url": "https://americanexpress.com/en-hk/travel/lounges/the-platinum-card/CMH",
            "title": "American Express Lounges at John Glenn Columbus International Airport | Amex HK",
            "time_published": "2026-05-05T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/John%20Glenn%20Columbus%20International%20Airport",
            "title": "John Glenn Columbus International Airport",
            "time_published": "2026-05-01T08:17:28Z"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Columbus to Seoul?",
        "answer": "Baggage allowance from Columbus to Seoul varies by airline and fare class. Basic economy tickets often do not include a checked bag, while standard international economy typically includes one checked bag and a carry‑on. Premium cabins provide more generous allowances."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Columbus to Seoul?",
        "answer": "Flights from Columbus to Seoul typically offer Economy and flat‑bed Business class; Premium Economy is available on select connecting itineraries."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies differ across carriers and fare classes; flexible and premium tickets often allow same‑day changes or standby, while Basic Economy typically does not."
      }
    }
  }
}